Active design of hard disk suspension assemblies using multiobjective optimization techniques

The active designs of hard disk suspension assemblies is formulated as multiobjective optimization problems. This design methodology integrates the structure and control objectives, which consist of natural frequencies and an optimal control performance index with weighted system state regulation errors and control efforts. Preloading and air bearing effects are both considered in the optimal design. The interface program communicates between the finite element analyzer and the optimizer with two multiobjective optimization techniques-goal programming and compromise programming. The feasibility of the optimal design is demonstrated and the frequency responses are investigated