摘要
阐述了用红外技术与求解导热反问题相结合对三维圆柱形工业设备内部缺陷进行定量计算的方法 ,从理论上证明了求解的可行性。在已知设备表面温度分布情况下 ,求解几何形状部分未知的传热学反问题将导致一非线性方程的求解 ,用牛顿迭代法对该方程数值求解可准确定出设备内部缺陷的位置及尺寸。
The defects in the inner wall of three dimensional hollow cylinder\|shaped equipment are calculated by means of infrared technique and solution of inverse heat conduction, and correctness of the solution is proven. Inverse solution to find the geometric shape with partially unknown system will lead to the solution of one nonlinear algebraic equation under the condition of the given temperature of the surface. The Newton iterative method can be used to resolve this equation for determining the position and size of the defects accuratly.
出处
《红外与激光工程》
EI
CSCD
北大核心
2002年第3期229-232,共4页
Infrared and Laser Engineering
关键词
红外技术
导热反问题
数值求解
缺陷
Infrared technique
\ Inverse heat conduction
\ Numerical solution
\ Defect
