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2026-06-19 16:05:38 +08:00
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<?xml version="1.0" ?>
<!-- =================================================================================== -->
<!-- | This document was autogenerated by xacro from robot.xacro | -->
<!-- | EDITING THIS FILE BY HAND IS NOT RECOMMENDED | -->
<!-- =================================================================================== -->
<robot name="a1_description" xmlns:xacro="http://www.ros.org/wiki/xacro">
<mujoco>
<compiler
meshdir="../meshes/"
balanceinertia="true"
discardvisual="false" />
</mujoco>
<material name="black">
<color rgba="0.0 0.0 0.0 1.0"/>
</material>
<material name="blue">
<color rgba="0.0 0.0 0.8 1.0"/>
</material>
<material name="green">
<color rgba="0.0 0.8 0.0 1.0"/>
</material>
<material name="grey">
<color rgba="0.2 0.2 0.2 1.0"/>
</material>
<material name="silver">
<color rgba="0.913725490196 0.913725490196 0.847058823529 1.0"/>
</material>
<material name="orange">
<color rgba="1.0 0.423529411765 0.0392156862745 1.0"/>
</material>
<material name="brown">
<color rgba="0.870588235294 0.811764705882 0.764705882353 1.0"/>
</material>
<material name="red">
<color rgba="0.8 0.0 0.0 1.0"/>
</material>
<material name="white">
<color rgba="1.0 1.0 1.0 1.0"/>
</material>
<!-- <xacro:include filename="$(find aliengo_gazebo)/launch/gazebo.xacro"/> -->
<!-- Debug mode will hung up the robot, use "true" or "false" to switch it. -->
<!-- <xacro:if value="$(arg DEBUG)">
<link name="world"/>
<joint name="base_static_joint" type="fixed">
<origin rpy="0 0 0" xyz="0 0 0"/>
<parent link="world"/>
<child link="base"/>
</joint>
</xacro:if> -->
<link name="world"/>
<joint name="" type="floating">
<origin rpy="0 0 0" xyz="0 0 0"/>
<parent link="world"/>
<child link="trunk"/>
</joint>
<link name="trunk">
<visual>
<origin rpy="0 0 0" xyz="0 0 0"/>
<geometry>
<mesh filename="../meshes/trunk.stl" scale="1 1 1"/>
</geometry>
<material name="silver"/>
</visual>
<collision>
<origin rpy="0 0 0" xyz="0 0 0"/>
<geometry>
<box size="0.267 0.194 0.114"/>
</geometry>
</collision>
<!-- <collision>
<origin rpy="0 0 0" xyz="0 0 0"/>
<geometry>
<mesh filename="../meshes/trunk.stl" scale="1 1 1"/>
</geometry>
</collision> -->
<inertial>
<origin rpy="0 0 0" xyz="0.012731 0.002186 0.000515"/>
<mass value="4.713"/>
<inertia ixx="0.01683993" ixy="8.3902e-05" ixz="0.000597679" iyy="0.056579028" iyz="2.5134e-05" izz="0.064713601"/>
</inertial>
</link>
<joint name="imu_joint" type="fixed">
<parent link="trunk"/>
<child link="imu_link"/>
<origin rpy="0 0 0" xyz="0 0 0"/>
</joint>
<link name="imu_link">
<inertial>
<mass value="0.001"/>
<origin rpy="0 0 0" xyz="0 0 0"/>
<inertia ixx="0.0001" ixy="0" ixz="0" iyy="0.000001" iyz="0" izz="0.0001"/>
</inertial>
<visual>
<origin rpy="0 0 0" xyz="0 0 0"/>
<geometry>
<box size="0.001 0.001 0.001"/>
</geometry>
<material name="red"/>
</visual>
<collision>
<origin rpy="0 0 0" xyz="0 0 0"/>
<geometry>
<box size=".001 .001 .001"/>
</geometry>
</collision>
</link>
<joint name="FR_hip_joint" type="revolute">
<origin rpy="0 0 0" xyz="0.183 -0.047 0"/>
<parent link="trunk"/>
<child link="FR_hip"/>
<axis xyz="1 0 0"/>
<dynamics damping="0" friction="0"/>
<limit effort="20" lower="-0.802851455917" upper="0.802851455917" velocity="52.4"/>
</joint>
<link name="FR_hip">
<visual>
<origin rpy="3.14159265359 0 0" xyz="0 0 0"/>
<geometry>
<mesh filename="../meshes/hip.stl" scale="1 1 1"/>
</geometry>
<material name="silver"/>
</visual>
<collision>
<origin rpy="1.57079632679 0 0" xyz="0 -0.055 0"/>
<geometry>
<cylinder length="0.08" radius="0.04"/>
</geometry>
</collision>
<inertial>
<origin rpy="0 0 0" xyz="-0.003311 -0.000635 3.1e-05"/>
<mass value="0.696"/>
<inertia ixx="0.000469246" ixy="9.409e-06" ixz="-3.42e-07" iyy="0.00080749" iyz="4.66e-07" izz="0.000552929"/>
</inertial>
</link>
<!-- <joint name="${name}_hip_fixed" type="fixed">
<origin rpy="0 0 0" xyz="0 ${(thigh_shoulder_length/2.0+hip_offset)*mirror} 0"/>
<parent link="${name}_hip"/>
<child link="${name}_thigh_shoulder"/>
</joint> -->
<!-- this link is only for collision -->
<!-- <link name="${name}_thigh_shoulder">
<collision>
<origin rpy="${PI/2.0} 0 0" xyz="0 0 0"/>
<geometry>
<cylinder length="${thigh_shoulder_length}" radius="${thigh_shoulder_radius}"/>
</geometry>
</collision>
</link> -->
<joint name="FR_thigh_joint" type="continuous">
<origin rpy="0 0 0" xyz="0 -0.08505 0"/>
<parent link="FR_hip"/>
<child link="FR_thigh"/>
<axis xyz="0 1 0"/>
<dynamics damping="0" friction="0"/>
<limit effort="55" lower="-1.0471975512" upper="4.18879020479" velocity="28.6"/>
</joint>
<link name="FR_thigh">
<visual>
<origin rpy="0 0 0" xyz="0 0 0"/>
<geometry>
<mesh filename="../meshes/thigh_mirror.stl" scale="1 1 1"/>
</geometry>
<material name="silver"/>
</visual>
<collision>
<origin rpy="0 1.57079632679 0" xyz="0 0 -0.1"/>
<geometry>
<box size="0.2 0.0245 0.034"/>
</geometry>
</collision>
<inertial>
<origin rpy="0 0 0" xyz="-0.003237 0.022327 -0.027326"/>
<mass value="1.013"/>
<inertia ixx="0.005529065" ixy="-4.825e-06" ixz="0.000343869" iyy="0.005139339" iyz="-2.2448e-05" izz="0.001367788"/>
</inertial>
</link>
<joint name="FR_calf_joint" type="revolute">
<origin rpy="0 0 0" xyz="0 0 -0.2"/>
<parent link="FR_thigh"/>
<child link="FR_calf"/>
<axis xyz="0 1 0"/>
<dynamics damping="0" friction="0"/>
<limit effort="55" lower="-2.69653369433" upper="-0.916297857297" velocity="28.6"/>
</joint>
<link name="FR_calf">
<visual>
<origin rpy="0 0 0" xyz="0 0 0"/>
<geometry>
<mesh filename="../meshes/calf.stl" scale="1 1 1"/>
</geometry>
<material name="black"/>
</visual>
<collision>
<origin rpy="0 1.57079632679 0" xyz="0 0 -0.1"/>
<geometry>
<box size="0.2 0.016 0.016"/>
</geometry>
</collision>
<inertial>
<origin rpy="0 0 0" xyz="0.006435 0.0 -0.107388"/>
<mass value="0.166"/>
<inertia ixx="0.002997972" ixy="0.0" ixz="-0.000141163" iyy="0.003014022" iyz="0.0" izz="3.2426e-05"/>
</inertial>
</link>
<joint name="FR_foot_fixed" type="fixed">
<origin rpy="0 0 0" xyz="0 0 -0.2"/>
<parent link="FR_calf"/>
<child link="FR_foot"/>
</joint>
<link name="FR_foot">
<visual>
<origin rpy="0 0 0" xyz="0 0 0"/>
<geometry>
<sphere radius="0.01"/>
</geometry>
<material name="black"/>
</visual>
<collision>
<origin rpy="0 0 0" xyz="0 0 0"/>
<geometry>
<sphere radius="0.02"/>
</geometry>
</collision>
<inertial>
<mass value="0.06"/>
<inertia ixx="9.6e-06" ixy="0.0" ixz="0.0" iyy="9.6e-06" iyz="0.0" izz="9.6e-06"/>
</inertial>
</link>
<transmission name="FR_hip_tran">
<type>transmission_interface/SimpleTransmission</type>
<joint name="FR_hip_joint">
<hardwareInterface>hardware_interface/EffortJointInterface</hardwareInterface>
</joint>
<actuator name="FR_hip_motor">
<hardwareInterface>hardware_interface/EffortJointInterface</hardwareInterface>
<mechanicalReduction>1</mechanicalReduction>
</actuator>
</transmission>
<transmission name="FR_thigh_tran">
<type>transmission_interface/SimpleTransmission</type>
<joint name="FR_thigh_joint">
<hardwareInterface>hardware_interface/EffortJointInterface</hardwareInterface>
</joint>
<actuator name="FR_thigh_motor">
<hardwareInterface>hardware_interface/EffortJointInterface</hardwareInterface>
<mechanicalReduction>1</mechanicalReduction>
</actuator>
</transmission>
<transmission name="FR_calf_tran">
<type>transmission_interface/SimpleTransmission</type>
<joint name="FR_calf_joint">
<hardwareInterface>hardware_interface/EffortJointInterface</hardwareInterface>
</joint>
<actuator name="FR_calf_motor">
<hardwareInterface>hardware_interface/EffortJointInterface</hardwareInterface>
<mechanicalReduction>1</mechanicalReduction>
</actuator>
</transmission>
<joint name="FL_hip_joint" type="revolute">
<origin rpy="0 0 0" xyz="0.183 0.047 0"/>
<parent link="trunk"/>
<child link="FL_hip"/>
<axis xyz="1 0 0"/>
<dynamics damping="0" friction="0"/>
<limit effort="20" lower="-0.802851455917" upper="0.802851455917" velocity="52.4"/>
</joint>
<link name="FL_hip">
<visual>
<origin rpy="0 0 0" xyz="0 0 0"/>
<geometry>
<mesh filename="../meshes/hip.stl" scale="1 1 1"/>
</geometry>
<material name="silver"/>
</visual>
<collision>
<origin rpy="1.57079632679 0 0" xyz="0 0.055 0"/>
<geometry>
<cylinder length="0.08" radius="0.04"/>
</geometry>
</collision>
<inertial>
<origin rpy="0 0 0" xyz="-0.003311 0.000635 3.1e-05"/>
<mass value="0.696"/>
<inertia ixx="0.000469246" ixy="-9.409e-06" ixz="-3.42e-07" iyy="0.00080749" iyz="-4.66e-07" izz="0.000552929"/>
</inertial>
</link>
<!-- <joint name="${name}_hip_fixed" type="fixed">
<origin rpy="0 0 0" xyz="0 ${(thigh_shoulder_length/2.0+hip_offset)*mirror} 0"/>
<parent link="${name}_hip"/>
<child link="${name}_thigh_shoulder"/>
</joint> -->
<!-- this link is only for collision -->
<!-- <link name="${name}_thigh_shoulder">
<collision>
<origin rpy="1.57079632679 0 0" xyz="0 0 0"/>
<geometry>
<cylinder length="${thigh_shoulder_length}" radius="${thigh_shoulder_radius}"/>
</geometry>
</collision>
</link> -->
<joint name="FL_thigh_joint" type="continuous">
<origin rpy="0 0 0" xyz="0 0.08505 0"/>
<parent link="FL_hip"/>
<child link="FL_thigh"/>
<axis xyz="0 1 0"/>
<dynamics damping="0" friction="0"/>
<limit effort="55" lower="-1.0471975512" upper="4.18879020479" velocity="28.6"/>
</joint>
<link name="FL_thigh">
<visual>
<origin rpy="0 0 0" xyz="0 0 0"/>
<geometry>
<mesh filename="../meshes/thigh.stl" scale="1 1 1"/>
</geometry>
<material name="silver"/>
</visual>
<collision>
<origin rpy="0 1.57079632679 0" xyz="0 0 -0.1"/>
<geometry>
<box size="0.2 0.0245 0.034"/>
</geometry>
</collision>
<inertial>
<origin rpy="0 0 0" xyz="-0.003237 -0.022327 -0.027326"/>
<mass value="1.013"/>
<inertia ixx="0.005529065" ixy="4.825e-06" ixz="0.000343869" iyy="0.005139339" iyz="2.2448e-05" izz="0.001367788"/>
</inertial>
</link>
<joint name="FL_calf_joint" type="revolute">
<origin rpy="0 0 0" xyz="0 0 -0.2"/>
<parent link="FL_thigh"/>
<child link="FL_calf"/>
<axis xyz="0 1 0"/>
<dynamics damping="0" friction="0"/>
<limit effort="55" lower="-2.69653369433" upper="-0.916297857297" velocity="28.6"/>
</joint>
<link name="FL_calf">
<visual>
<origin rpy="0 0 0" xyz="0 0 0"/>
<geometry>
<mesh filename="../meshes/calf.stl" scale="1 1 1"/>
</geometry>
<material name="black"/>
</visual>
<collision>
<origin rpy="0 1.57079632679 0" xyz="0 0 -0.1"/>
<geometry>
<box size="0.2 0.016 0.016"/>
</geometry>
</collision>
<inertial>
<origin rpy="0 0 0" xyz="0.006435 0.0 -0.107388"/>
<mass value="0.166"/>
<inertia ixx="0.002997972" ixy="0.0" ixz="-0.000141163" iyy="0.003014022" iyz="0.0" izz="3.2426e-05"/>
</inertial>
</link>
<joint name="FL_foot_fixed" type="fixed">
<origin rpy="0 0 0" xyz="0 0 -0.2"/>
<parent link="FL_calf"/>
<child link="FL_foot"/>
</joint>
<link name="FL_foot">
<visual>
<origin rpy="0 0 0" xyz="0 0 0"/>
<geometry>
<sphere radius="0.01"/>
</geometry>
<material name="black"/>
</visual>
<collision>
<origin rpy="0 0 0" xyz="0 0 0"/>
<geometry>
<sphere radius="0.02"/>
</geometry>
</collision>
<inertial>
<mass value="0.06"/>
<inertia ixx="9.6e-06" ixy="0.0" ixz="0.0" iyy="9.6e-06" iyz="0.0" izz="9.6e-06"/>
</inertial>
</link>
<transmission name="FL_hip_tran">
<type>transmission_interface/SimpleTransmission</type>
<joint name="FL_hip_joint">
<hardwareInterface>hardware_interface/EffortJointInterface</hardwareInterface>
</joint>
<actuator name="FL_hip_motor">
<hardwareInterface>hardware_interface/EffortJointInterface</hardwareInterface>
<mechanicalReduction>1</mechanicalReduction>
</actuator>
</transmission>
<transmission name="FL_thigh_tran">
<type>transmission_interface/SimpleTransmission</type>
<joint name="FL_thigh_joint">
<hardwareInterface>hardware_interface/EffortJointInterface</hardwareInterface>
</joint>
<actuator name="FL_thigh_motor">
<hardwareInterface>hardware_interface/EffortJointInterface</hardwareInterface>
<mechanicalReduction>1</mechanicalReduction>
</actuator>
</transmission>
<transmission name="FL_calf_tran">
<type>transmission_interface/SimpleTransmission</type>
<joint name="FL_calf_joint">
<hardwareInterface>hardware_interface/EffortJointInterface</hardwareInterface>
</joint>
<actuator name="FL_calf_motor">
<hardwareInterface>hardware_interface/EffortJointInterface</hardwareInterface>
<mechanicalReduction>1</mechanicalReduction>
</actuator>
</transmission>
<joint name="RR_hip_joint" type="revolute">
<origin rpy="0 0 0" xyz="-0.183 -0.047 0"/>
<parent link="trunk"/>
<child link="RR_hip"/>
<axis xyz="1 0 0"/>
<dynamics damping="0" friction="0"/>
<limit effort="20" lower="-0.802851455917" upper="0.802851455917" velocity="52.4"/>
</joint>
<link name="RR_hip">
<visual>
<origin rpy="3.14159265359 3.14159265359 0" xyz="0 0 0"/>
<geometry>
<mesh filename="../meshes/hip.stl" scale="1 1 1"/>
</geometry>
<material name="silver"/>
</visual>
<collision>
<origin rpy="1.57079632679 0 0" xyz="0 -0.055 0"/>
<geometry>
<cylinder length="0.08" radius="0.04"/>
</geometry>
</collision>
<inertial>
<origin rpy="0 0 0" xyz="0.003311 -0.000635 3.1e-05"/>
<mass value="0.696"/>
<inertia ixx="0.000469246" ixy="-9.409e-06" ixz="3.42e-07" iyy="0.00080749" iyz="4.66e-07" izz="0.000552929"/>
</inertial>
</link>
<!-- <joint name="${name}_hip_fixed" type="fixed">
<origin rpy="0 0 0" xyz="0 ${(thigh_shoulder_length/2.0+hip_offset)*mirror} 0"/>
<parent link="${name}_hip"/>
<child link="${name}_thigh_shoulder"/>
</joint> -->
<!-- this link is only for collision -->
<!-- <link name="${name}_thigh_shoulder">
<collision>
<origin rpy="1.57079632679 0 0" xyz="0 0 0"/>
<geometry>
<cylinder length="${thigh_shoulder_length}" radius="${thigh_shoulder_radius}"/>
</geometry>
</collision>
</link> -->
<joint name="RR_thigh_joint" type="continuous">
<origin rpy="0 0 0" xyz="0 -0.08505 0"/>
<parent link="RR_hip"/>
<child link="RR_thigh"/>
<axis xyz="0 1 0"/>
<dynamics damping="0" friction="0"/>
<limit effort="55" lower="-1.0471975512" upper="4.18879020479" velocity="28.6"/>
</joint>
<link name="RR_thigh">
<visual>
<origin rpy="0 0 0" xyz="0 0 0"/>
<geometry>
<mesh filename="../meshes/thigh_mirror.stl" scale="1 1 1"/>
</geometry>
<material name="silver"/>
</visual>
<collision>
<origin rpy="0 1.57079632679 0" xyz="0 0 -0.1"/>
<geometry>
<box size="0.2 0.0245 0.034"/>
</geometry>
</collision>
<inertial>
<origin rpy="0 0 0" xyz="-0.003237 0.022327 -0.027326"/>
<mass value="1.013"/>
<inertia ixx="0.005529065" ixy="-4.825e-06" ixz="0.000343869" iyy="0.005139339" iyz="-2.2448e-05" izz="0.001367788"/>
</inertial>
</link>
<joint name="RR_calf_joint" type="revolute">
<origin rpy="0 0 0" xyz="0 0 -0.2"/>
<parent link="RR_thigh"/>
<child link="RR_calf"/>
<axis xyz="0 1 0"/>
<dynamics damping="0" friction="0"/>
<limit effort="55" lower="-2.69653369433" upper="-0.916297857297" velocity="28.6"/>
</joint>
<link name="RR_calf">
<visual>
<origin rpy="0 0 0" xyz="0 0 0"/>
<geometry>
<mesh filename="../meshes/calf.stl" scale="1 1 1"/>
</geometry>
<material name="black"/>
</visual>
<collision>
<origin rpy="0 1.57079632679 0" xyz="0 0 -0.1"/>
<geometry>
<box size="0.2 0.016 0.016"/>
</geometry>
</collision>
<inertial>
<origin rpy="0 0 0" xyz="0.006435 0.0 -0.107388"/>
<mass value="0.166"/>
<inertia ixx="0.002997972" ixy="0.0" ixz="-0.000141163" iyy="0.003014022" iyz="0.0" izz="3.2426e-05"/>
</inertial>
</link>
<joint name="RR_foot_fixed" type="fixed">
<origin rpy="0 0 0" xyz="0 0 -0.2"/>
<parent link="RR_calf"/>
<child link="RR_foot"/>
</joint>
<link name="RR_foot">
<visual>
<origin rpy="0 0 0" xyz="0 0 0"/>
<geometry>
<sphere radius="0.01"/>
</geometry>
<material name="black"/>
</visual>
<collision>
<origin rpy="0 0 0" xyz="0 0 0"/>
<geometry>
<sphere radius="0.02"/>
</geometry>
</collision>
<inertial>
<mass value="0.06"/>
<inertia ixx="9.6e-06" ixy="0.0" ixz="0.0" iyy="9.6e-06" iyz="0.0" izz="9.6e-06"/>
</inertial>
</link>
<transmission name="RR_hip_tran">
<type>transmission_interface/SimpleTransmission</type>
<joint name="RR_hip_joint">
<hardwareInterface>hardware_interface/EffortJointInterface</hardwareInterface>
</joint>
<actuator name="RR_hip_motor">
<hardwareInterface>hardware_interface/EffortJointInterface</hardwareInterface>
<mechanicalReduction>1</mechanicalReduction>
</actuator>
</transmission>
<transmission name="RR_thigh_tran">
<type>transmission_interface/SimpleTransmission</type>
<joint name="RR_thigh_joint">
<hardwareInterface>hardware_interface/EffortJointInterface</hardwareInterface>
</joint>
<actuator name="RR_thigh_motor">
<hardwareInterface>hardware_interface/EffortJointInterface</hardwareInterface>
<mechanicalReduction>1</mechanicalReduction>
</actuator>
</transmission>
<transmission name="RR_calf_tran">
<type>transmission_interface/SimpleTransmission</type>
<joint name="RR_calf_joint">
<hardwareInterface>hardware_interface/EffortJointInterface</hardwareInterface>
</joint>
<actuator name="RR_calf_motor">
<hardwareInterface>hardware_interface/EffortJointInterface</hardwareInterface>
<mechanicalReduction>1</mechanicalReduction>
</actuator>
</transmission>
<joint name="RL_hip_joint" type="revolute">
<origin rpy="0 0 0" xyz="-0.183 0.047 0"/>
<parent link="trunk"/>
<child link="RL_hip"/>
<axis xyz="1 0 0"/>
<dynamics damping="0" friction="0"/>
<limit effort="20" lower="-0.802851455917" upper="0.802851455917" velocity="52.4"/>
</joint>
<link name="RL_hip">
<visual>
<origin rpy="0 3.14159265359 0" xyz="0 0 0"/>
<geometry>
<mesh filename="../meshes/hip.stl" scale="1 1 1"/>
</geometry>
<material name="silver"/>
</visual>
<collision>
<origin rpy="1.57079632679 0 0" xyz="0 0.055 0"/>
<geometry>
<cylinder length="0.08" radius="0.04"/>
</geometry>
</collision>
<inertial>
<origin rpy="0 0 0" xyz="0.003311 0.000635 3.1e-05"/>
<mass value="0.696"/>
<inertia ixx="0.000469246" ixy="9.409e-06" ixz="3.42e-07" iyy="0.00080749" iyz="-4.66e-07" izz="0.000552929"/>
</inertial>
</link>
<!-- <joint name="${name}_hip_fixed" type="fixed">
<origin rpy="0 0 0" xyz="0 ${(thigh_shoulder_length/2.0+hip_offset)*mirror} 0"/>
<parent link="${name}_hip"/>
<child link="${name}_thigh_shoulder"/>
</joint> -->
<!-- this link is only for collision -->
<!-- <link name="${name}_thigh_shoulder">
<collision>
<origin rpy="1.57079632679 0 0" xyz="0 0 0"/>
<geometry>
<cylinder length="${thigh_shoulder_length}" radius="${thigh_shoulder_radius}"/>
</geometry>
</collision>
</link> -->
<joint name="RL_thigh_joint" type="continuous">
<origin rpy="0 0 0" xyz="0 0.08505 0"/>
<parent link="RL_hip"/>
<child link="RL_thigh"/>
<axis xyz="0 1 0"/>
<dynamics damping="0" friction="0"/>
<limit effort="55" lower="-1.0471975512" upper="4.18879020479" velocity="28.6"/>
</joint>
<link name="RL_thigh">
<visual>
<origin rpy="0 0 0" xyz="0 0 0"/>
<geometry>
<mesh filename="../meshes/thigh.stl" scale="1 1 1"/>
</geometry>
<material name="silver"/>
</visual>
<collision>
<origin rpy="0 1.57079632679 0" xyz="0 0 -0.1"/>
<geometry>
<box size="0.2 0.0245 0.034"/>
</geometry>
</collision>
<inertial>
<origin rpy="0 0 0" xyz="-0.003237 -0.022327 -0.027326"/>
<mass value="1.013"/>
<inertia ixx="0.005529065" ixy="4.825e-06" ixz="0.000343869" iyy="0.005139339" iyz="2.2448e-05" izz="0.001367788"/>
</inertial>
</link>
<joint name="RL_calf_joint" type="revolute">
<origin rpy="0 0 0" xyz="0 0 -0.2"/>
<parent link="RL_thigh"/>
<child link="RL_calf"/>
<axis xyz="0 1 0"/>
<dynamics damping="0" friction="0"/>
<limit effort="55" lower="-2.69653369433" upper="-0.916297857297" velocity="28.6"/>
</joint>
<link name="RL_calf">
<visual>
<origin rpy="0 0 0" xyz="0 0 0"/>
<geometry>
<mesh filename="../meshes/calf.stl" scale="1 1 1"/>
</geometry>
<material name="black"/>
</visual>
<collision>
<origin rpy="0 1.57079632679 0" xyz="0 0 -0.1"/>
<geometry>
<box size="0.2 0.016 0.016"/>
</geometry>
</collision>
<inertial>
<origin rpy="0 0 0" xyz="0.006435 0.0 -0.107388"/>
<mass value="0.166"/>
<inertia ixx="0.002997972" ixy="0.0" ixz="-0.000141163" iyy="0.003014022" iyz="0.0" izz="3.2426e-05"/>
</inertial>
</link>
<joint name="RL_foot_fixed" type="fixed">
<origin rpy="0 0 0" xyz="0 0 -0.2"/>
<parent link="RL_calf"/>
<child link="RL_foot"/>
</joint>
<link name="RL_foot">
<visual>
<origin rpy="0 0 0" xyz="0 0 0"/>
<geometry>
<sphere radius="0.01"/>
</geometry>
<material name="black"/>
</visual>
<collision>
<origin rpy="0 0 0" xyz="0 0 0"/>
<geometry>
<sphere radius="0.02"/>
</geometry>
</collision>
<inertial>
<mass value="0.06"/>
<inertia ixx="9.6e-06" ixy="0.0" ixz="0.0" iyy="9.6e-06" iyz="0.0" izz="9.6e-06"/>
</inertial>
</link>
<transmission name="RL_hip_tran">
<type>transmission_interface/SimpleTransmission</type>
<joint name="RL_hip_joint">
<hardwareInterface>hardware_interface/EffortJointInterface</hardwareInterface>
</joint>
<actuator name="RL_hip_motor">
<hardwareInterface>hardware_interface/EffortJointInterface</hardwareInterface>
<mechanicalReduction>1</mechanicalReduction>
</actuator>
</transmission>
<transmission name="RL_thigh_tran">
<type>transmission_interface/SimpleTransmission</type>
<joint name="RL_thigh_joint">
<hardwareInterface>hardware_interface/EffortJointInterface</hardwareInterface>
</joint>
<actuator name="RL_thigh_motor">
<hardwareInterface>hardware_interface/EffortJointInterface</hardwareInterface>
<mechanicalReduction>1</mechanicalReduction>
</actuator>
</transmission>
<transmission name="RL_calf_tran">
<type>transmission_interface/SimpleTransmission</type>
<joint name="RL_calf_joint">
<hardwareInterface>hardware_interface/EffortJointInterface</hardwareInterface>
</joint>
<actuator name="RL_calf_motor">
<hardwareInterface>hardware_interface/EffortJointInterface</hardwareInterface>
<mechanicalReduction>1</mechanicalReduction>
</actuator>
</transmission>
</robot>

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data/a1/xml/a1.xml Normal file
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<mujoco model="a1_description">
<compiler angle="radian" meshdir="../meshes/" />
<size njmax="500" nconmax="100" />
<option gravity='0 0 -9.806' iterations='50' solver='Newton' timestep='0.002'/>
<default>
<geom contype="1" conaffinity="1" friction="0.6 0.3 0.3" rgba="0.5 0.6 0.7 1" margin="0.001" group="0"/>
<light castshadow="false" diffuse="1 1 1"/>
<motor ctrlrange="-33.5 33.5" ctrllimited="true"/>
<camera fovy="60"/>
<joint damping="0.01" armature="0.01" frictionloss="0.2" />
</default>
<asset>
<mesh name="trunk" file="trunk.stl" />
<mesh name="hip" file="hip.stl" />
<mesh name="thigh_mirror" file="thigh_mirror.stl" />
<mesh name="calf" file="calf.stl" />
<mesh name="thigh" file="thigh.stl" />
</asset>
<asset>
<texture type="skybox" builtin="gradient" rgb1="1.0 1.0 1.0" rgb2="1.0 1.0 1.0" width="512" height="512"/>
<texture name="plane" type="2d" builtin="flat" rgb1="1 1 1" rgb2="1 1 1" width="512" height="512" mark="cross" markrgb="0 0 0"/>
<material name="plane" reflectance="0.0" texture="plane" texrepeat="3 3" texuniform="true"/>
</asset>
<visual>
<rgba com="0.502 1.0 0 0.5" contactforce="0.98 0.4 0.4 0.7" contactpoint="1.0 1.0 0.6 0.4"/>
<scale com="0.2" forcewidth="0.035" contactwidth="0.10" contactheight="0.04"/>
</visual>
<worldbody>
<light directional="true" diffuse=".8 .8 .8" pos="0 0 10" dir="0 0 -10"/>
<camera name="track" mode="trackcom" pos="0 -1.3 1.6" xyaxes="1 0 0 0 0.707 0.707"/>
<geom name='floor' type='plane' conaffinity='1' condim='3' contype='1' rgba="0.5 0.9 0.9 0.1" material='plane' pos='0 0 0' size='0 0 1'/>
<body name="trunk" pos="0 0 0.3">
<inertial pos="0.0127283 0.00218554 0.000514891" quat="0.00186575 0.711506 0.000389649 0.702677" mass="4.714" diaginertia="0.0648213 0.0565803 0.0169323" />
<joint type="free" />
<geom type="mesh" contype="0" conaffinity="0" group="1" rgba="0.913725 0.913725 0.847059 1" mesh="trunk" />
<geom size="0.1335 0.066 0.057" type="box" rgba="0.913725 0.913725 0.847059 0" />
<geom size="0.0005 0.0005 0.0005" type="box" contype="0" conaffinity="0" group="1" rgba="0.8 0 0 0" />
<geom size="0.0005 0.0005 0.0005" type="box" rgba="0.8 0 0 0" />
<site name="imu" pos="0 0 0"/>
<body name="FR_hip" pos="0.183 -0.047 0">
<inertial pos="-0.003311 -0.000635 3.1e-05" quat="0.507528 0.506268 0.491507 0.494499" mass="0.696" diaginertia="0.000807752 0.00055293 0.000468983" />
<joint name="FR_hip_joint" pos="0 0 0" axis="1 0 0" limited="true" range="-0.802851 0.802851" />
<geom quat="0 1 0 0" type="mesh" contype="0" conaffinity="0" group="1" rgba="0.913725 0.913725 0.847059 1" mesh="hip" />
<geom size="0.04 0.04" pos="0 -0.055 0" quat="0.707107 0.707107 0 0" type="cylinder" rgba="0.913725 0.913725 0.847059 0" />
<body name="FR_thigh" pos="0 -0.08505 0">
<inertial pos="-0.003237 0.022327 -0.027326" quat="0.999125 -0.00256393 -0.0409531 -0.00806091" mass="1.013" diaginertia="0.00555739 0.00513936 0.00133944" />
<joint name="FR_thigh_joint" pos="0 0 0" axis="0 1 0" limited="true" range="-1.0472 4.18879" />
<geom type="mesh" contype="0" conaffinity="0" group="1" rgba="0.913725 0.913725 0.847059 1" mesh="thigh_mirror" />
<geom size="0.1 0.01225 0.017" pos="0 0 -0.1" quat="0.707107 0 0.707107 0" type="box" rgba="0.913725 0.913725 0.847059 0" />
<body name="FR_calf" pos="0 0 -0.2">
<inertial pos="0.00472659 0 -0.131975" quat="0.706886 0.017653 0.017653 0.706886" mass="0.226" diaginertia="0.00340344 0.00339393 3.54834e-05" />
<joint name="FR_calf_joint" pos="0 0 0" axis="0 1 0" limited="true" range="-2.69653 -0.916298" />
<geom type="mesh" contype="0" conaffinity="0" group="1" rgba="0 0 0 1" mesh="calf" />
<geom size="0.1 0.008 0.008" pos="0 0 -0.1" quat="0.707107 0 0.707107 0" type="box" rgba="0 0 0 0" />
<geom size="0.01" pos="0 0 -0.2" contype="0" conaffinity="0" group="1" rgba="0 0 0 1" />
<geom size="0.02" pos="0 0 -0.2" rgba="0 0 0 1" />
</body>
</body>
</body>
<body name="FL_hip" pos="0.183 0.047 0">
<inertial pos="-0.003311 0.000635 3.1e-05" quat="0.494499 0.491507 0.506268 0.507528" mass="0.696" diaginertia="0.000807752 0.00055293 0.000468983" />
<joint name="FL_hip_joint" pos="0 0 0" axis="1 0 0" limited="true" range="-0.802851 0.802851" />
<geom type="mesh" contype="0" conaffinity="0" group="1" rgba="0.913725 0.913725 0.847059 1" mesh="hip" />
<geom size="0.04 0.04" pos="0 0.055 0" quat="0.707107 0.707107 0 0" type="cylinder" rgba="0.913725 0.913725 0.847059 0" />
<body name="FL_thigh" pos="0 0.08505 0">
<inertial pos="-0.003237 -0.022327 -0.027326" quat="0.999125 0.00256393 -0.0409531 0.00806091" mass="1.013" diaginertia="0.00555739 0.00513936 0.00133944" />
<joint name="FL_thigh_joint" pos="0 0 0" axis="0 1 0" limited="true" range="-1.0472 4.18879" />
<geom type="mesh" contype="0" conaffinity="0" group="1" rgba="0.913725 0.913725 0.847059 1" mesh="thigh" />
<geom size="0.1 0.01225 0.017" pos="0 0 -0.1" quat="0.707107 0 0.707107 0" type="box" rgba="0.913725 0.913725 0.847059 0" />
<body name="FL_calf" pos="0 0 -0.2">
<inertial pos="0.00472659 0 -0.131975" quat="0.706886 0.017653 0.017653 0.706886" mass="0.226" diaginertia="0.00340344 0.00339393 3.54834e-05" />
<joint name="FL_calf_joint" pos="0 0 0" axis="0 1 0" limited="true" range="-2.69653 -0.916298" />
<geom type="mesh" contype="0" conaffinity="0" group="1" rgba="0 0 0 1" mesh="calf" />
<geom size="0.1 0.008 0.008" pos="0 0 -0.1" quat="0.707107 0 0.707107 0" type="box" rgba="0 0 0 0" />
<geom size="0.01" pos="0 0 -0.2" contype="0" conaffinity="0" group="1" rgba="0 0 0 1" />
<geom size="0.02" pos="0 0 -0.2" rgba="0 0 0 1" />
</body>
</body>
</body>
<body name="RR_hip" pos="-0.183 -0.047 0">
<inertial pos="0.003311 -0.000635 3.1e-05" quat="0.491507 0.494499 0.507528 0.506268" mass="0.696" diaginertia="0.000807752 0.00055293 0.000468983" />
<joint name="RR_hip_joint" pos="0 0 0" axis="1 0 0" limited="true" range="-0.802851 0.802851" />
<geom quat="0 0 0 -1" type="mesh" contype="0" conaffinity="0" group="1" rgba="0.913725 0.913725 0.847059 1" mesh="hip" />
<geom size="0.04 0.04" pos="0 -0.055 0" quat="0.707107 0.707107 0 0" type="cylinder" rgba="0.913725 0.913725 0.847059 0" />
<body name="RR_thigh" pos="0 -0.08505 0">
<inertial pos="-0.003237 0.022327 -0.027326" quat="0.999125 -0.00256393 -0.0409531 -0.00806091" mass="1.013" diaginertia="0.00555739 0.00513936 0.00133944" />
<joint name="RR_thigh_joint" pos="0 0 0" axis="0 1 0" limited="true" range="-1.0472 4.18879" />
<geom type="mesh" contype="0" conaffinity="0" group="1" rgba="0.913725 0.913725 0.847059 1" mesh="thigh_mirror" />
<geom size="0.1 0.01225 0.017" pos="0 0 -0.1" quat="0.707107 0 0.707107 0" type="box" rgba="0.913725 0.913725 0.847059 0" />
<body name="RR_calf" pos="0 0 -0.2">
<inertial pos="0.00472659 0 -0.131975" quat="0.706886 0.017653 0.017653 0.706886" mass="0.226" diaginertia="0.00340344 0.00339393 3.54834e-05" />
<joint name="RR_calf_joint" pos="0 0 0" axis="0 1 0" limited="true" range="-2.69653 -0.916298" />
<geom type="mesh" contype="0" conaffinity="0" group="1" rgba="0 0 0 1" mesh="calf" />
<geom size="0.1 0.008 0.008" pos="0 0 -0.1" quat="0.707107 0 0.707107 0" type="box" rgba="0 0 0 0" />
<geom size="0.01" pos="0 0 -0.2" contype="0" conaffinity="0" group="1" rgba="0 0 0 1" />
<geom size="0.02" pos="0 0 -0.2" rgba="0 0 0 1" />
</body>
</body>
</body>
<body name="RL_hip" pos="-0.183 0.047 0">
<inertial pos="0.003311 0.000635 3.1e-05" quat="0.506268 0.507528 0.494499 0.491507" mass="0.696" diaginertia="0.000807752 0.00055293 0.000468983" />
<joint name="RL_hip_joint" pos="0 0 0" axis="1 0 0" limited="true" range="-0.802851 0.802851" />
<geom quat="0 0 1 0" type="mesh" contype="0" conaffinity="0" group="1" rgba="0.913725 0.913725 0.847059 1" mesh="hip" />
<geom size="0.04 0.04" pos="0 0.055 0" quat="0.707107 0.707107 0 0" type="cylinder" rgba="0.913725 0.913725 0.847059 0" />
<body name="RL_thigh" pos="0 0.08505 0">
<inertial pos="-0.003237 -0.022327 -0.027326" quat="0.999125 0.00256393 -0.0409531 0.00806091" mass="1.013" diaginertia="0.00555739 0.00513936 0.00133944" />
<joint name="RL_thigh_joint" pos="0 0 0" axis="0 1 0" limited="true" range="-1.0472 4.18879" />
<geom type="mesh" contype="0" conaffinity="0" group="1" rgba="0.913725 0.913725 0.847059 1" mesh="thigh" />
<geom size="0.1 0.01225 0.017" pos="0 0 -0.1" quat="0.707107 0 0.707107 0" type="box" rgba="0.913725 0.913725 0.847059 0" />
<body name="RL_calf" pos="0 0 -0.2">
<inertial pos="0.00472659 0 -0.131975" quat="0.706886 0.017653 0.017653 0.706886" mass="0.226" diaginertia="0.00340344 0.00339393 3.54834e-05" />
<joint name="RL_calf_joint" pos="0 0 0" axis="0 1 0" limited="true" range="-2.69653 -0.916298" />
<geom type="mesh" contype="0" conaffinity="0" group="1" rgba="0 0 0 1" mesh="calf" />
<geom size="0.1 0.008 0.008" pos="0 0 -0.1" quat="0.707107 0 0.707107 0" type="box" rgba="0 0 0 0" />
<geom size="0.01" pos="0 0 -0.2" contype="0" conaffinity="0" group="1" rgba="0 0 0 1" />
<geom size="0.02" pos="0 0 -0.2" rgba="0 0 0 1" />
</body>
</body>
</body>
</body>
</worldbody>
<actuator>
<motor name="FR_hip" gear="1" joint="FR_hip_joint"/>
<motor name="FR_thigh" gear="1" joint="FR_thigh_joint"/>
<motor name="FR_calf" gear="1" joint="FR_calf_joint"/>
<motor name="FL_hip" gear="1" joint="FL_hip_joint"/>
<motor name="FL_thigh" gear="1" joint="FL_thigh_joint"/>
<motor name="FL_calf" gear="1" joint="FL_calf_joint"/>
<motor name="RR_hip" gear="1" joint="RR_hip_joint"/>
<motor name="RR_thigh" gear="1" joint="RR_thigh_joint"/>
<motor name="RR_calf" gear="1" joint="RR_calf_joint" />
<motor name="RL_hip" gear="1" joint="RL_hip_joint"/>
<motor name="RL_thigh" gear="1" joint="RL_thigh_joint"/>
<motor name="RL_calf" gear="1" joint="RL_calf_joint"/>
</actuator>
<sensor>
<jointpos name="FR_hip_pos" joint="FR_hip_joint"/>
<jointpos name="FR_thigh_pos" joint="FR_thigh_joint"/>
<jointpos name="FR_calf_pos" joint="FR_calf_joint"/>
<jointpos name="FL_hip_pos" joint="FL_hip_joint"/>
<jointpos name="FL_thigh_pos" joint="FL_thigh_joint"/>
<jointpos name="FL_calf_pos" joint="FL_calf_joint"/>
<jointpos name="RR_hip_pos" joint="RR_hip_joint"/>
<jointpos name="RR_thigh_pos" joint="RR_thigh_joint"/>
<jointpos name="RR_calf_pos" joint="RR_calf_joint" />
<jointpos name="RL_hip_pos" joint="RL_hip_joint"/>
<jointpos name="RL_thigh_pos" joint="RL_thigh_joint"/>
<jointpos name="RL_calf_pos" joint="RL_calf_joint"/>
<jointvel name="FR_hip_vel" joint="FR_hip_joint"/>
<jointvel name="FR_thigh_vel" joint="FR_thigh_joint"/>
<jointvel name="FR_calf_vel" joint="FR_calf_joint"/>
<jointvel name="FL_hip_vel" joint="FL_hip_joint"/>
<jointvel name="FL_thigh_vel" joint="FL_thigh_joint"/>
<jointvel name="FL_calf_vel" joint="FL_calf_joint"/>
<jointvel name="RR_hip_vel" joint="RR_hip_joint"/>
<jointvel name="RR_thigh_vel" joint="RR_thigh_joint"/>
<jointvel name="RR_calf_vel" joint="RR_calf_joint" />
<jointvel name="RL_hip_vel" joint="RL_hip_joint"/>
<jointvel name="RL_thigh_vel" joint="RL_thigh_joint"/>
<jointvel name="RL_calf_vel" joint="RL_calf_joint"/>
<accelerometer name="Body_Acc" site="imu"/>
<gyro name="Body_Gyro" site="imu"/>
<framepos name="Body_Pos" objtype="site" objname="imu"/>
<framequat name="Body_Quat" objtype="site" objname="imu"/>
</sensor>
</mujoco>