1Research of Digital Closed-loop Manufacturing Technology of Curvic CouplingWang Zhiyong, Xiao Zhixiong, Zhang Yu, Liu XinTheory·Reserach1-72Research of the Test Method of Double Stress Step-down Acceleration Life for Harmonic ReducerWang Jing, Tao Menglun, Chen Dingfang, Wu Can, Wu Junfeng, Chen Fang, Li BoTheory·Reserach8-123Analysis on the Machining Twisting mechanism of Tooth Surface with Axial Modification of Helical Gear and Its Influence on Meshing PerformanceGao Shihao, Yang Long, Chen Siyu, Tang JinyuanTheory·Reserach13-18,374Analysis of VH-CATT EHL Minimum Film Thickness in Meshing ProcessLuo Pei, Hou Li, Wu Yang, Ji Yangzhen, Liu Xubing, Wei YongqiaoTheory·Reserach19-285Dynamics Modeling and Inherent Vibration Characteristic Analysis of Multi-motor Parallel Drive-transmission SystemLiu Li, Shu Ruizhi, Huang Jin, Tan Rulong, Fu BenyuanTheory·Reserach29-376Vibration Characteristic Analysis and Feature Extraction of Bearing Coupling Fault based on Sparse RepresentationGong Xiaoyun, Zhang Weiye, Jing Yongjie, Du WenliaoTheory·Reserach38-43,547Study on Nonlinear Dynamics Characteristic of Two-stage Planetary Gear TrainLeng Xiaolu, Wang Xiaosun, Lu Chongshan, Wu ShijingTheory·Reserach44-548Optimal Design of Single-stage Double-arc Spiral Bevel Gear Nutation ReducerLin Zheng, Yao Ligang, Su Tongke, Sun ZhengDesign·Calculation55-599Digital Modeling of Cone-generated Enveloping Torus WormLiu Zhi, Lu Hong, Kuang Xin, Xia LiangDesign·Calculation60-6710Kinematics Analysis of Sewing Robot based on Double QuaternionYan Xin, Ma Liping, Wang Xiaohua, Wu NanDesign·Calculation68-7311Calculation and Analysis of Crack Stress Intensity Factor and J Integral of Helical GearSun Guangyao, Mutellip Ahmat, Wang PengchengDesign·Calculation74-7912Optimization of Trajectory Tracking Control in Task Space for Dual-arm Space RobotLi Shuo, Li Xixing, Zhao YanDesign·Calculation80-8513Design and Optimization of Trapezoidal Steering Mechanism based on Improved Particle Swarm AlgorithmZhai Jianhua, Qiu Laiqi, Wei Xiaohua, Yang DongshanDesign·Calculation86-9514Inverse Kinematics Optimization Method of a 6-DOF RobotWang Jian, Ao YuDesign·Calculation96-10315Analysis of Meshing Stiffness of Variable Hyperbolic Arc Gear based on Finite Element MethodGou Jianping, Hou Li, Wu Yang, Luo Pei, Zhang Qi, Ma DengqiuTest·Analysis104-11016Research of the Dynamics Performance and Modification of Helical Gear in MarineLi Xuezhi, Chen MengTest·Analysis111-11517Kinematics Analysis of Multi-dimensional Vibration Reduction Construction Vehicle Seat with 2-SPS+SR SuspensionYan Bijuan, Zhang Jie, Liang Huijun, Liu ZekunTest·Analysis116-12318Research of the Influence of Rotation Speed on Lubricating Property of Sliding Bearing with Oil Seal EdgeZhang Wentao, Kong HaoTest·Analysis124-12819Research on Low Noise Method of Passenger Car GearboxJin Lihong, Dong Hongquan, Zhang FushengTest·Analysis129-135,14720Analysis of Topological Structure of Series Mechanism with All Rotating PairLu Feiyang, Zhu Xianshuang, Zhang LiangliangTest·Analysis136-140 