瞬态加热环境下变厚度板温度场及热模态分析

Temperature Field and Mode Analysis of Flat Plate with Thermal Environment of Transient Heating

瞬态加热会严重影响结构的固有振动特性.以变厚度板为研究对象,进行热载状态下结构的瞬态温度场和振动特性分析.计算结果表明,在加热过程中,结构温度发生显著变化并引起热应力,进一步影响到结构的固有振动特性.

Transient heating has a serious effect on the characteristic of structural natural vibration Considering flat plate as the object of research, the analyses of structural transient temperature field and characteristic of structural vibration are presented with the conditions of thermal load. The calculation results show that structural temperature will increase evidently so as to have a serious effect on the characteristic of structural natural vibration during the process of heating.