1Vibration Fatigue Life Prediction and Parameter Optimization of Roadheader PicksHe Yang, Li Xiaohuo, Xi YabingTheory·Research1-92Research on Fatigue Life and Node Displacement Modification Method of Helical GearsLi Yufeng, Li Dongyang, Wu Luji, Ge Shixiang, Yang Yongfei, Chang HaoTheory·Research10-153Analysis of High Speed Gearbox Oil Injection Lubrication Under Negative Pressure Based on the CFDZhang Hong, Huang Bo, Ding Yiqun, Qiu Linyue, Lu HaoranTheory·Research16-234Dynamic Modeling and Nonlinear Vibration Research of the Rotary Cutting Mechanism Based on Bond GraphsZhao Jiayi, Gao Yiyang, Zhao Changzhen, Rao Xiaobo, Ding Shunliang, Gao JiansheTheory·Research24-325Trajectory Planning of Manipulators Based on Artificial Immune-improved Particle Swarm Optimization AlgorithmGuo Xin, Li LijunTheory·Research33-406Path Planning Method for Hydraulic Heavy-duty Manipulators Considering Dynamic Overturning StabilitySong Zepeng, Liu Fang, Huang TaotaoTheory·Research41-477Design of Bionic Bird Jumping Mechanism for Autonomous Take-off and Landing Based on the Micro-platformZhang Chunpeng, Shao Weiping, Hao YongpingDesign·Calculation48-538Design and Optimization of the Master Manipulator of Minimally Invasive Surgery RobotsLiu Fen, Song Liqiang, Huang Fang, Han Rui, Sang HongqiangDesign·Calculation54-61,749Design and Simulation of Flexible Lower Limb Assisted Exoskeletons Based on the OpenSimFeng Bolin, Song Peng, Li Ruiyuan, Wei Zuba, Li Qiang, Sun XichangDesign·Calculation62-6610Shoulder Optimization and Motion Simulation of a 7-DOF Exoskeleton Upper Limb Rehabilitation RobotLiu Jiajun, Zhang Xinbo, Xie Yinhui, Li Jun, Lin Guijuan, Gong QingzhongDesign·Calculation67-7411Carbon-free Car Structure and Trajectory Simulation Design for Clocking the"Long March"RouteZhou Yanbo, Luo Qiang, Zhang Yiwei, Wang Jingyu, Feng Qin, Wang YingshengDesign·Calculation75-8212Different Output Ripples of Speed and Torque and Output Ripple Minimization for External Hydraulic Gear-motorsLi Yulong, Hou Xinyu, Zhang Lihua, Song AnranDesign·Calculation83-8713Dynamic Characteristic Analysis of the Main Drive Gear Transmission System of a Large Shield Machine Considering Non-uniform Load ConditionsDeng Shuzhi, Xu Lixin, Long Bin, Su CuixiaTest·Analysis88-9714Research on the Influence of the Circumferential Backlash on the Gear Meshing Transmission Precision of Small Steering GearsChen Xuan, Zhang Liyong, Zhang Hanlin, Zhang Yu, Jiang Yehu, Li Chengyu, Yuan FengxiaTest·Analysis98-10415Design and Experiment of End-effectors for Picking Navel Oranges Based on the Underactuated PrincipleJiang Yanhong, Liu Jing, Hu Zhikui, Zhang WanTest·Analysis105-11316Design and Experiment of Spine-like Multi-directional Continuous Manipulators Based on Rolling ContactDong Dong, Zhou Liang, Hu JunfengTest·Analysis114-12117Active Design of Contact Pattern and Experimental Verification of the Aero Spiral Bevel GearQian Lulu, Liu Hai'ou, Gao Jian, Lou PengTest·Analysis122-13018Dynamic Characteristics Analysis of High-speed Herringbone Gears under Driving and Loading ExcitationDing Jun, Zhi Yanfeng, Zhang Hanlin, Zhang Liyong, Wang Changlu, Wang Kai, Zheng TianleTest·Analysis131-13719Lightweight Design and Verification of Housings of Helicopter Reducers with Carbon Fiber Reinforced CompositesYan Yuesheng, Wang Jichong, Cai Zhijie, Yin Hongling, Peng XiongqiDevelopment·Application138-14420Research on the Lightweight Gear Surface Defect Detection Algorithm Based on BN-YOLOv5Zhao Xiaohui, Zhang Zhijie, Hu Sheng, Huan Kaixuan, Liu Lei, Pu JunpingDevelopment·Application145-151 