噪声与振动控制2012，Vol.32Issue(2)：132-136,5.DOI:10.3969/j.issn.1006-1355-2012.02.032
船用柴油机机体组合结构模态分析方法
Modal Analysis Method of Combination Structure for Marine Diesel Engine
摘要
Abstract
The simplified finite element models of base, frame, cylinder's body, scavenge box, and air cooler of a diesel engine were established and validated by numerical simulation respectively. Treatment method of bolt-connection in the finite element analysis (FEA) was verified by the results modal testing of bolted plates. Based on these, the finite element model of the combination structure of a 6-cylinder diesel engine was built. Weak parts and the modals of whole engine were found through modal analysis. A simple approach for prediction and reduction of engine structure' s vibration was proposed.关键词
振动与波/船用柴油机/数值试验/模态分析/有限元法/组合结构Key words
vibration and wave / marine diesel engine / numerical simulation / modal analysis / finite element method/combination structure分类
交通工程引用本文复制引用
魏立队,段树林,吴伋,武起立,于洪亮..船用柴油机机体组合结构模态分析方法[J].噪声与振动控制,2012,32(2):132-136,5.基金项目
辽宁省自然基金项目(基金编号:20072144) （基金编号:20072144）
