Using finite element method,influence of diesel cylinder head structure on fatigue strength is investigated.A simplified head model with function characteristics is built for thermal-mechanical simulation.From the simulation results,the influence of valve bridge structure and roof transition fillet dimension on fatigue strength are obtained.And a new valve bridge structure which can effectively improve the fatigue life is proposed.
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机译:公司治理结构对盈余管理的影响研究—基于民营类上市公司的实证分析 =The Influence of Corporate Governance Structure on Earnings Management at the Listed Non-State-Controlled Firms in China