Optimal design of complex flexible rotor-support systems using minimum strain energy under multi-constraint conditions

摘要

The optimal design of complex flexible rotor-support systems is studied in this paper. Optimization using system strain energy is shown to be a convenient way to handle such systems. Multiple constraints such as the damped critical speeds, limitations on transmitted forces and the amplitudes of the deflection of shafts and disks, and stability considerations, are used to meet the engineering requirements. The support stiffnesses and clearances of squeeze film dampers (SFDs) are used as design variables. The transfer matrix-component mode synthesis method (TMCMS) is employed in the system dynamic analysis. A method of calculating damped critical speeds is also developed by using system strain energy criterion. The optimum results can be easily applied to preliminary engineering design as well as in modifications to existing machines. (C) 1998 Academic Press. [References: 22]