Research on Measurements for Temperature and Stress of Pistons in Internal Combustion Engine  

作　　者：董小瑞 谭建松 

机构地区：[1]Department of Vehicle and Power Engineering,North University of China [2]China North Engine Research Institute

出　　处：《Defence Technology（防务技术）》2008年第2期81-84,共4页Defence Technology

摘　　要：In both numerical simulation and experimental research for the piston of internal combustion engine, the verification foundations are always insufficient. The reason is the measurements for its transient temperature and stress under actual operation conditions are very difficult. A multi-channel measurement-storage technology is used in the engine bench experiment to measure the piston temperature and stress in real time. The temperature and stress changes in the engine operation process are obtained. They provide reliable instructive criteria for numerical analysis and experiment of the piston working state.In both numerical simulation and experimental research for the piston of internal combustion engine, the verification foundations are always insufficient. The reason is the measurements for its transient temperature and stress under actual operation conditions are very difficult. A multi-channel measurement-storage technology is used in the engine bench experiment to measure the piston temperature and stress in real time. The temperature and stress changes in the engine operation process are obtained. They provide reliable instructive criteria for numerical analysis and experiment of the piston working state.

关 键 词：大功率机械 测量与储存 温度 应力 内燃机 

分 类 号：TK401[动力工程及工程热物理—动力机械及工程]