Research on Equivalent Method of Bench Fatigue Tests for Main Reducers by Zou Xihong, Zhou Qing, Yuan Dongmei, Xiao Yukai, Zhou Yuting, He Ping

“…In order to verify the effectiveness of the equivalent method, the finite element model of the main reducer is established and the static strength analysis is carried out to verify the mesh independence and model validity. …”
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Mechanical characteristics and calculation method of static pressure pile installation for PHC pipe piles in sandy soil foundation with pebble interlayer by Xiannian Zhou, Chengyun Yang, Xiaojie Ming, Mi Dai, Weihe Lu, Fanghui Zhang

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A Nonlinear Static Procedure for the Seismic Design of Symmetrical Irregular Bridges by Shanshan Li, Ping Xiang, Biao Wei, Lu Yan, Ye Xia

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Outcomes of astigmatic correction with and without two different cyclotorsion compensation methods in small incision lenticule extraction surgery by Jiping Xu, Manli Liu, Quan Liu

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STRUCTURAL STRENGTH AND LIFE ANALYSIS OF AN ELECTRIC DRIVE AXLE SHELL BASED ON THE MEASURED LOAD SPECTRUM by JIANG Liangxing, NI Dacheng, YAO Chao, HUANG Qing, QING Xinhui

“…Accurately predicting the fatigue life of products plays an important role in the structural strength design and reliability design of key components of electric vehicles.Starting from the measured road load spectrum of the reinforced road, a method for data processing and analysis of measured load spectrum was proposed, based on the Miner criterion, the load data of the vehicle under no-load, half-load and full load were obtained, and the key data for vibration simulation analysis and indoor bench test were obtained through time-domain frequency domain processing and damage equivalent treatment.A parallel-shaft electric drive axle was designed and developed, the statics analysis and modal analysis were carried out for key components such as the bridge shell, and the results concluded that the bridge shell would not have torsion and bending caused by road surface excitation.Based on nCode DesignLife simulation analysis software, the fatigue life and damage value distribution of the bridge shell were obtained, and the accuracy of the simulation analysis was verified by the bridge shell durability test.Based on the measured road load spectrum of the reinforced road, a 15 000 km vehicle vibration test was carried out on the vehicle vibration test bench for the electric drive axle.The test shows that the overall life and reliability of the electric drive axle meet the design requirements, and the reliability of the analysis method is verified.…”
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Theoretical Design and Characteristics Analysis of a Quasi-Zero Stiffness Isolator Using a Disk Spring as Negative Stiffness Element by Lingshuai Meng, Jinggong Sun, Wenjuan Wu

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