1Research on roller contact force of curve sections of round pipe belt conveyors based on DEM-FEMJIA Haibo, ZHOU Lidong, ZHANG XiTheory·Research1-82Study on the contact fatigue prediction model of carburized and quenched spur gears with multiaxial stress propertiesLI Luke, XING Yongxiang, YAN Shidang, WANG XiaopengTheory·Research9-183Synthesis and solution region optimization method of shape-changing mechanismsQIAN Weixiang, JIN Zhichao, YANG Yinshuo, QU Zhuocheng, GUO RongzhuoTheory·Research19-254Dynamic characteristics of planetary gear transmission system in hybrid commercial vehicle ECVTXIANG Dongyang, CHEN Yong, CHEN Tao, WU Chaoyang, XU Zhengyun, ZHANG RiruiTheory·Research26-375Topological design and analysis of a novel 2T1R parallel mechanism with symbolic position solutions and motion decouplingGUO Yue, LI Ju, SHEN HuipingDesign·Calculation38-466Structural parameter optimization of micro harmonic flexspline based on neural networkSHAO Weilong, LI Luyang, YE Wenli, WANG QishanDesign·Calculation47-547Design and analysis of 2T1R parallel mechanism with two kinds of translation characteristicsCAI Xiang, GAO Bo, SHI ZhixinDesign·Calculation55-638Design and analysis of the reversing device for extended-range pumping unitsYUAN Xinmei, HUANG Jiawei, YANG Lizhao, HUANG Tiancheng, ZHOU SizhuDesign·Calculation64-719Optimized design of cam steering structure for carbon-free car based on Sobol methodSHUI Guomin, ZHAO Wangchu, LI Ce, JIANG Bin, WANG RuiqingDesign·Calculation72-7810Failure analysis of torque limiters in wind turbine couplingsSONG Jiangkai, WANG Yunlang, LÜ WanTest·Analysis79-8411Analysis and optimisation of windage power loss of high-speed cylindrical helical gear pairLIU Zehao, KANG Min, FEI Xiuguo, LIU WeiTest·Analysis85-9212Kinematics and dynamics analysis of lower limb rehabilitation exoskeleton robotsNING Feilong, LI Chengdong, LI Heng, JIANG JiahaoTest·Analysis93-10113Analysis of plastic hole expansion under gear interference fitWEN Chao, GU Jianfeng, ZHANG Hong, LI Zhengminqing, HUANG BoTest·Analysis102-11114A method for generating grinding of internal helical gears based on spherical worm grinding wheelJIANG Chuang, SHANG Yongshuai, HAN Zhengyang, WANG ZehuaDevelopment·Application112-11815Fault diagnosis method for gearboxes based on deep convolutional binary decomposition networkLIN Huibin, XIAN Xianzhao, HE GuolinDevelopment·Application119-127,13516Acoustic signal-assisted detection method of spiral bevel gears based on PSO-MCKDLI Xianshan, TIAN Yu, WEI Lilin, ZHAO Xiaofeng, YAN ChangfengDevelopment·Application128-13517Effect of sintering temperature on the accuracy of MIM small-module gearsLIU Zuoshi, MING Aoyang, REN Jihua, WANG Xiaoyi, ZHONG Zhicheng, ZHU Minfeng, ZHU WeidongDevelopment·Application136-14218Acoustic emission diagnosis method of bearing faults based on improved Teager energy envelope and EWTLI Yun, YU Yang, YANG PingDevelopment·Application143-15019Frequency band optimization Fourier decomposition method and its application in fault diagnosis of rolling bearingsHUANG Siqi, ZHANG Xinqun, LIU Shijie, TAN Zhiyin, HE KaiDevelopment·Application151-16120Research status on jumping function of quadruped robotsHUA Congcong, YANG Zihe, XIA Yanting, YAN Jianrong, GAO Guanjian, LUO Fuliang, MA Wenshuo, LI ZhijieReview162-174 