摘要
建立了与热冲击试验台加热环境相适应的矩形热冲击模型和平壁热传导模型,并求得相应的解析解.利用上述模型对6150柴油机活塞受矩形热冲击时的温度响应和热应力进行了计算,结果表明,该模型可较好地预测试验台加热环境下活塞温度和应力变化规律,为活塞热疲劳的研究打下良好的基础.
A rectangular thermal shock and plate heat transfer model was established under the condition of thermal shock test bed and the simulation results were got. The temperature response and thermal stress of piston for 6150 diesel engine were calculated by using this model. The simulation results quite agree with the test results. It is shown that the research achievements of both theory and test can lay a foundation for the study on the thermal damage of piston.
出处
《燃烧科学与技术》
EI
CAS
CSCD
2003年第5期439-442,共4页
Journal of Combustion Science and Technology
基金
国家自然科学基金资助项目(59876034).
关键词
矩形热冲击
平壁热传导模型
温度响应
热应力
Computer simulation
Diesel engines
Heat transfer
Mathematical models
Temperature
Thermal stress
