上悬式离心机主轴系统的优化设计

The Optimization Design of Spindle System of Hang Type Centrifuge

长期以来,上悬式离心机的振动都严重影响着糖厂生产的安全稳定,因而有必要对其作出合理的优化以减小其在正常工作时的振动。以上悬式离心机主轴系统结构参数为设计变量,主轴系统输出端振幅最小为优化目标,给定合理的优化约束条件,应用遗传算法建立离心机主轴系统的优化设计数学模型。仿真结果表明:优化后,离心机主轴系统输出端的振幅得到降低,从而提高了上悬式离心机主轴系统的动态性能,同时离心机的整机重量也得到一定量的减少,降低了制造成本。

For a long time,the severe vibration of the hang type centrifuge strongly seriously influences the safe and stable work of the sugar-refinery. So it is necessary to make a reasonable optimization to reduce the vibration of the centrifuge. The structural parameters of the spindle system of the hang type centrifuge are taken as the design variables in this paper. The minimum value of the amplitude of the output of the spindle system is taken as the optimization objective. Some suitable optimization constraints are given. Then the mathematical model of the optimal design for the spindle system of the centrifuge is built by the genetic algorithm. The simulation results indicated that the amplitude of the output of the spindle system is reduced after optimization,and the dynamic performance of the spindle system is improved. Meanwhile,the weight of the centrifuge is reduced,which reduces the production cost of the centrifuge.