Optimization of a High Speed Spinning Disk Spindle System for Minimum RRO,NRRO,and Lightweight by Using G.A.

作     者：Y H Choi S T Kim K C Yoon J M Kim Y J Kang 

作者机构：Dept.of Mechanical Design and ManufacturingChangwon National UniversityKyungnam 641-773Korea Dept.of Mechanical EngineeringChangwon National UniversityKyungnam 641-773Korea Senoir Research EngineerR&D Cente FAGHANWHA Bearing Corp.Kyungnam 641-020Korea Graduate StudentDept.of Mechanical Design and ManufacturingChangwon National UniversityKyungnam 6412773Korea 

出 版 物：《厦门大学学报(自然科学版)》 (Journal of Xiamen University:Natural Science)

年 卷 期：2002年第41卷第S1期

页      面：89-90页

核心收录：

学科分类：08[工学] 0803[工学-光学工程] 

主　　题：design optimization genetic algorithm multiobjective optimization repeatable run out non repeatable run out 

摘      要：Law level of RRO(Repeatable Run Out),NRRO(Non Repe at able Run Out),and lightweight construction are a major trend in the high-speed HDD(Hard Disk Drive)sytem to reduce track misregestration and to achieve high track density,which lead to succeed in the ***,it is not easy to r educe RRO,NRRO,and the weight of the spinning disk spindle system efficiently because lightweight construction and or bearing stiffness changes often yields a decrease in the static and dynamic stiffness of the system,and consequently hi gh vibrations may be generated as a ***,it is of importance to e valuate in advance the accurate dynamic behavior of the high speed spinning disk spindle system of a HDD *** study introduces an optimum design of the high speed spinning disk spindle system of a HDD for minimum RRO,NRRO,and lightweight construction using a gene tic *** spinning disk,hub,and bearing components of a HDD system ar e modelled as appropriate finite elements respectively and their equations of mo tion are derived to construct the system equations of the whole spinning disk sp indle system of the HDD *** RRO and NRRO responses of the spinning disk,due to exciting forces arised from ball bearing faults and rotating unbalance,are *** the design optimation,the hub thickness,the disk thickness,bearing positio ns(or bearing span)and bearing stiffness were set as design *** uni que objective function is obtained by multiplying an appropriate weighting facto r by multi-objective functions,such as RRO,NRRO,and the total weight of HDD the *** constraints are maximum RRO limit,maximum weight linit,and the critical speed limit of the HDD spindle *** show that the RRO,NRRO,and weight are reduced by 6%,66.7%and 28%r espectively compared with the initial design of the HDD ***,thi s present study can be used for an optimum design of the spinning disk spindle s ystem of a HDD for lightweight construction