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首页> 外文期刊>International Journal of Marine Engineering Innovation and Research >Design and Optimisation of Marine two-stroke Diesel Engine Piston
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Design and Optimisation of Marine two-stroke Diesel Engine Piston

机译：海水二冲程柴油机活塞的设计与优化

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ABSTRACTIn the cylinder of conventional compression ignition engine, temperature distribution and stress variation set up in the entire piston due to the inherent nature of combustion. This project will investigate causes and effects of high gas pressure and temperature on marine two-stroke diesel engine piston.??Investigation has shown that stress-related piston damages play a dominant role mainly due to mechanical and thermal stress or combination of both. The simulation parameters that will be considered in this report are piston material, combustion temperature and combustion pressure.In the present study, conventional marine two-stroke diesel engine piston will be modelled using Autodesk Inventor software. The working condition of the piston will be simulated based on the selected parameters using finite element analysis method to analyze the magnitude of mechanical stresses acting on the piston.The piston will be re-designed using a material superior to the conventional piston material and will be optimized by reducing the stresses acting on the piston. Two materials will be used in the analysis after which the results will be compared and the best will be proposed. The structure and stress analysis (mechanical, thermal and thermal-mechanical stress) of the design will be modelled using the software mentioned earlier.
机译：摘要由于燃烧的固有性质，在整个活塞中设立的常规压缩点火发动机的气缸，温度分布和应力变化。该项目将研究高气体压力和温度对海洋双程柴油发动机活塞的原因和影响。表明，应力相关的活塞损坏主要是由于机械和热应力或两者的组合来发挥显着作用。在本报告中将考虑的仿真参数是活塞材料，燃烧温度和燃烧压力。本研究中，传统的海上海程柴油发动机活塞将使用Autodesk Inventor软件进行建模。使用有限元分析方法基于所选择的参数来模拟活塞的工作条件，以分析在活塞上作用的机械应力的大小。活塞将使用优于传统活塞材料的材料重新设计，并将是通过减少在活塞上作用的应力进行了优化。在分析中将使用两种材料后，将比较结果，并提出最佳结果。设计的结构和应力分析（机械，热和热机械应力）将使用前面提到的软件进行建模。

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