A Neural Network Based Method for On-line Calculation of Equivalent Stresses in Steam Turbine Rotors

摘要：

An on-line calculation method, based on a neural network, for calculating the equivalent stress of steam turbine rotors, is being proposed. The method of expressing the equivalent stress in an steam turbine rotors, in terms of formulas applicable for solid cylindrical models of the same diameter, is being explained; together with the numerical finite element calculation method. A Method and calculation steps of on-line calculation by neural network are presented, accompanied by a practical example of calculating the equivalent stress in the high and intermediate pressure rotor (HP-IP rotor) of a 600MW steam turbine. The application of neural network technique, for obtaining the equivalent stress in on-line monitoring systems of steam turbine rotors, raises the calculation precision of the equivalent stress of steam turbine rotors; providing herewith a better basis for on-line monitoring the equivalent stress and life consumption management of steam turbine rotor’s.

关键词： Steam turbine, Rotor Thermal stress Squivalent stress On-line monitoring Neural network Life consumption management

作者: Jinyuan Shi Yang Yu Zhicheng Deng Zhijie Zhu

作者单位: Shanghai Power Equipment Research Institute, Shanghai 200240, China

会议类型: 国际会议

会议名称: 2007杭州国际动力工程会议(The International Conference on Power Engineering 2007)

会议地点: 杭州

会议语种:英文

在线出版日期: 2007-10-23（万方平台首次上网日期，不代表论文的发表时间）