Professional paper
https://doi.org/10.21278/brod72207
NUMERICAL ANALYSIS OF VALVE STRUCTURE OF HIGH POWER MARINE ENGINE
Deng Lijun
; School of Energy & Power Engineering, Shandong University; College of Electromechanical Engineering，Binzhou University
Huang Meng
; Zichai Machinery Co.Ltd.
Xin Qiangzhi
; Zichai Machinery Co.Ltd.
He Zongjian
; Zichai Machinery Co.Ltd.
Jia Baofu
; Zichai Machinery Co.Ltd.
Wang Zhiming
; School of Energy & Power Engineering, Shandong University
He Jianwen
; China Agricultural Development Group Zhoushan ocean fishery Co., Ltd
Abstract
Valve as an important part of the gas distribution mechanism, is an crucial part of the engine. When the engine works, the valve is subjected to high temperature, high impact, frictional wear and corrosion and other harsh working conditions, and the reliable and durable valve has an important impact on the safety and reliability of the engine. In this paper, a model of four-stroke marine diesel engine valve is used as the research object, and the intake valve set and exhaust valve set models are established respectively. Heat transfer simulation and failure analysis of inlet and exhaust valves of different structures and materials under different operating conditions were carried out using finite element analysis. The results show that the different valve structures and manufacturing materials have different effects on the reliability of the valves; Changing the valve structures and choosing different valve manufacturing materials have a greater impact on the heat transfer and deformation, thus affecting the overall reliability of the valves.
Keywords
Marine Diesel Engine; Valve; Numerical Simulation; Numerical Analysis
Hrčak ID:
260935
URI
Publication date:
1.4.2021.
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