基于Ansys/Mechanical建立转缸式斜盘发动机的有限元模型，得到发动机整机和配气阀座的应力和应变分布，将发动机作为一个整体进行分析相比传统方法更全面和准确。分析表明：在发动机设计时应适当增加发动机支撑框架的刚度，提高发动机的运转平稳性，保证主轴和斜轴之间不产生干涉。阀座和气缸体之间的过盈量为0.04～0.06 mm有利于阀座的应力分布，所得到的结果为发动机的工程设计提供依据。
Based on ANSYS/Mechanical, the finite element model of the Swashplate Revoloving Cylinder engine is established, and the stress and strain distribution of the engine and valve seat are obtained. Taking the engine as whole is more comprehensive and accurate than the traditional method. The analysis shows that the stiffness of the engine support frame should be properly increased in the engine design, so as to improve the running stability of the engine and ensure that there is no interference between the main shaft and the oblique shaft. The interference between the seat and the cylinder block is 0.04 mm-0.06 mm, which is beneficial to the stress distribution of the valve seat. The results obtained provide a basis for the engineering design of the engine.
2020,42(2): 176-180 收稿日期：2019-03-07
DOI：10.3404/j.issn.1672-7649.2020.02.034
分类号：TJ630.2
作者简介：李鑫(1982-),男,高级工程师,研究方向为鱼雷动力技术
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