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

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.