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Yanan Wang, Keyuan Li, Baijie Qiao, Zhixian Shen and Xuefeng Chen
The internal gear is part of the planetary and epicyclic gear pairs in the transmission system of the helicopter. Gear tooth wear is one of the most usual gear failures. This paper establishes an analytical model to evaluate the influence of tooth wear o...
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Xiaoqing Mei, Chajuan Liu, Xinxia Wang and Yangyang Wei
The realization of the global ?Double carbon? target is closely related to the energy-saving travel of human beings. Along with the increase in the number of new energy vehicles around the world, the number of new energy vehicle charging post carports ha...
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Marc Zarnekow, Thomas Grätsch and Frank Ihlenburg
This paper proposes an efficient hybrid analytical-computational approach for the simulation of mechanical vibrations and sound radiation in wind turbine drive trains.The computational procedure encompasses the detailed modeling of vibrational sources an...
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Mengting Zou, Jun Ma, Xin Xiong and Rong Li
To investigate the vibration properties in healthy and fault conditions of planetary gearboxes, a phenomenological model is constructed to present the vibration spectrum structure. First, the effects of the base deflection of the gear fillet and the flex...
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Melisa Herrera, Diego Sosa, Sigifredo Díaz and Jessica Thangjitham
Current construction codes require detailed analyses for structural retrofitting, which must consider performance during seismic events. Therefore, the computational models used to evaluate existing infrastructure require nonlinear structural analysis an...
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Minglin Chen, Bo Huang, Zhiying Yang, Qingyang Ren and Bing Zhu
At present, box-girder superstructures are commonly used in coastal bridges, and their hydrodynamic performance under extreme waves such as tsunamis has attracted a lot of attention. There is a lack of research focusing on the effect of lateral restraini...
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Jinbao Chen, Jiayu Dong, Zhicheng Song, Chuanzhi Chen and Jiaqi Li
In this study, a hybrid iteration force density method (HIFDM) was proposed to ensure both tension uniformity and accuracy of an antenna mesh reflector. Based on a genetic algorithm (GA), the boundary cable tension of the antenna reflector net was optimi...
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Martin Eigel, Marvin Haase and Johannes Neumann
Topology optimisation is a mathematical approach relevant to different engineering problems where the distribution of material in a defined domain is distributed in some optimal way, subject to a predefined cost function representing desired (e.g., mecha...
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Bing Yuan, Geng Liu and Lan Liu
As one of the long period gear errors, the effects of random cumulative pitch deviations on mesh excitations and vibration responses of a helical geared rotor system (HGRS) are investigated. The long-period mesh stiffness (LPMS), static transmission erro...
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Zhanfeng Qi, Bo Zou, Huiqiang Lu, Jian Shi, Guofu Li, Yufeng Qin and Jingsheng Zhai
A numerical investigation is conducted to study the propulsive performance of the semi-active flapping foil of the wave glider, where the heaving smotion is fully prescribed, and the pitching motion is determined by the hydrodynamic force and torsion spr...
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