A study on dynamic stress of planetary gear transmission in non-inertial system

IF 2.8 4区工程技术 Q1 ACOUSTICS

Journal of Low Frequency Noise Vibration and Active Control Pub Date : 2023-03-10 DOI:10.1177/14613484231160150

Jing Wei, Miaofei Cao, Aiqiang Zhang, Hao Cheng, B. Peng

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引用次数: 1

Abstract

Considering the comprehensive effect of the internal non-inertial system of planetary gear transmission (PGT) and external non-inertial system of the body, combined with the modified Heywood formula and Hertz formula, a calculation model for the dynamic bending stress and contact dynamic stress of the PGT in a non-inertial system (NIS) is proposed. The stress non-inertial coefficients (KNI) describing the influence of the additional effects on the dynamic stress in the non-inertial system are defined. Additionally, the variation law of non-inertial coefficients under two typical non-inertial conditions of variable-speed horizontal flight and somersault motion was studied. The effect of gear installation and manufacturing errors on the non-inertial coefficients under two maneuvering conditions was analyzed. The results indicated that non-inertial coefficients increase with an increase in the maneuverability of the body, and the variable-speed horizontal flight and somersault motion have significant effects on the changing trend of non-inertial coefficients with the gear installation and manufacturing errors. Compared with the gear error, the effect of the NIS has a significant influence on the non-inertial coefficients.

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非惯性系行星齿轮传动动应力研究

考虑到行星齿轮传动系统内部非惯性系统和物体外部非惯性系统的综合作用，结合改进的Heywood公式和Hertz公式，提出了行星齿轮传动系统在非惯性系统中动态弯曲应力和接触动应力的计算模型。定义了描述附加效应对非惯性系统动应力影响的应力非惯性系数(KNI)。此外，还研究了变速水平飞行和空翻两种典型非惯性条件下非惯性系数的变化规律。分析了两种机动工况下齿轮安装和制造误差对非惯性系数的影响。结果表明，非惯性系数随机体机动性的增加而增大，变速水平飞行和空翻运动对非惯性系数随齿轮安装和制造误差的变化趋势有显著影响。与齿轮误差相比，NIS的影响对非惯性系数有显著影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Low Frequency Noise Vibration and Active Control Engineering-Mechanical Engineering

CiteScore

4.90

自引率

4.30%

发文量

审稿时长

15 weeks

期刊介绍： Journal of Low Frequency Noise, Vibration & Active Control is a peer-reviewed, open access journal, bringing together material which otherwise would be scattered. The journal is the cornerstone of the creation of a unified corpus of knowledge on the subject.