Calculation and Optimization of the Cover Model of an Engine Valve Chamber

2018 IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO) Pub Date : 2018-08-01 DOI:10.1109/3M-NANO.2018.8552217

W. Cheng, Q. Yu, Jinkai Xu, Huadong Yu, Yonghua Wang

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Abstract

At the beginning of the design of a certain type of engine, the dynamic analysis of the left and right valve chamber assembly of the engine is carried out by means of finite element method, and the modal calculation is carried out. The overall stiffness of the cover of the left and right valve chamber is evaluated. The modal frequency and mode of the hood cover are obtained. According to the calculation results, the scheme of the valve chamber cover is optimized. The modal analysis is carried out on the improved normal hood cover, and the final optimal scheme is obtained, which provides a reference for the followup design of the hood chamber cover of the engine. According to it. Compared with the original scheme, the improved scheme of the left valve chamber cover frequency is 1676Hz, which is 6.28% higher than that of the original scheme 1577Hz; the first order mode frequency 1729Hz in the assembly state of the right valve chamber cover is 14.88% higher than that of the original scheme.

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某发动机气门室盖板模型的计算与优化

在某型发动机设计之初，采用有限元法对发动机的左右气门室总成进行了动力学分析，并进行了模态计算。对左右阀室盖板的整体刚度进行了评估。得到了发动机罩的模态频率和模态。根据计算结果，对阀室盖的设计方案进行了优化。对改进后的普通罩进行了模态分析，得到了最终的优化方案，为后续发动机罩室罩的设计提供了参考。根据它。与原方案相比，改进方案左阀室盖频率为1676Hz，比原方案1577Hz提高6.28%;右阀室盖装配状态下的一阶模态频率(1729Hz)比原方案高14.88%。

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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2018 IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO)

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