基于LS-DYNA的移动硬盘跌落冲击耐撞性能分析  

Drop impact crashworthiness analysis of mobile hard disk based on LS-DYNA

作　　者：杨书仪[1] 刘德顺[1] 赵继云[2] 

机构地区：[1]湖南科技大学机电工程学院,湘潭411201 [2]中国矿业大学,徐州221008

出　　处：《振动与冲击》2012年第9期13-17,共5页Journal of Vibration and Shock

基　　金：国家自然科学基金资助项目(51075139);教育部科学技术研究重点项目(211120);湖南省教育厅科学研究青年项目(10B030)

摘　　要：移动硬盘独特的机械工作方式和部件结构的复杂性决定其对振动冲击非常敏感。针对移动硬盘复杂的内部结构,遵循质量等效原则,基于ANSYS/LS-DYNA动力学分析软件建立非工作状态下的移动硬盘整体跌落冲击有限元模型,分析并确定移动硬盘跌落冲击耐撞性能评价指标。通过数值仿真,分析传动臂材料、传动臂形状以及跌落角度对移动硬盘耐撞性能的影响,为移动硬盘的耐撞性分析、评估与设计提供理论依据。Mobile hard disk is very sensitive to vibration because of the unique working way of its mechanical structure and the complexity of its components. According to its inner structure and complying with mass equivalent principle, the finite element model of a 2.5 inch mobile hard disk in non-operational state was established based on ANSYS/LS-DYNA. The crashworthiness evaluation index was analyzed and set forward. The influences of the material and shape of the head actuator arm assembly as well as the drop angle were analyzed through simulation. The study provides a theoretical basis for crashworthiness analysis, evaluation and design of mobile hard disks.

关 键 词：移动硬盘 跌落冲击 LS-DYNA 耐撞性 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]