In this paper,one-dimensional thermal stress calculation methods of finite and infinite cylindrical models are studied,and the differences between the assumptions of infinite and infinite cylindrical models are clarified,which lays a foundation for subsequent thermal stress calculation models of rotors.The temperature and stress components of the cylinder are compared between the difference method and the finite element method,and the temperature and thermal stress of a high pressure rotor are calculated by taking it as an example.The results show that the self-programmed calculation speed is fast and the calculation accuracy meets the requirements of engineering application,which provides support for on-line monitoring of rotor thermal stress.
关键词
热应力/有限差分法/有限元法
Key words
thermal stress/finite difference method/finite element method
维普
万方数据