Head slap simulation for linear and rotary shock impulses

被引：15

作者：

Jayson, EM

Murphy, J

Smith, PW

Talke, FE

机构：

[1] Univ Calif San Diego, Ctr Magnet Recording Res, La Jolla, CA 92093 USA

[2] Seagate Technol, Longmont, CO 80503 USA

来源：

TRIBOLOGY INTERNATIONAL | 2003年 / 36卷 / 4-6期

关键词：

hard disk drive; linear shock; rotary shock;

D O I：

10.1016/S0301-679X(02)00203-7

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

A finite element model of a hard disk drive (HDD) is developed to investigate the response of the HDD to a shock impulse. Two types of shock are of interest, a linear shock and a rotary shock. The linear model corresponds to a HDD being dropped flat onto an impact surface. The rotary model is constrained to rotate about an axis and simulates a HDD standing on one edge that is allowed to drop and impact the opposite edge. The geometry is developed using Pro/E, a CAD package, and is then imported into Hypermesh, a pre- and post-processor. The transient solution is performed using LS-Dyna, a finite element solver. The three software packages are commercially available. Results are shown as animations and time series data. Comparison of the simulation results for the two models is used to develop a correlation between the linear and rotary shock tests. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：311 / 316

页数：6