Design of modified shock isolators for the optical pickup in an ODD by analytical and experimental methods

Wonseok Oh; Seungho Lim; Kyoung Su Park; No Cheol Park; Young Pil Park; Jae Sung Lee; Han Baek Lee

doi:10.1007/s00542-013-1871-3

Design of modified shock isolators for the optical pickup in an ODD by analytical and experimental methods

Wonseok Oh, Seungho Lim, Kyoung Su Park, No Cheol Park, Young Pil Park, Jae Sung Lee, Han Baek Lee

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

Optical disk drives are subjected to many different types of shock environments. In particular, during harsh shipping conditions, extremely large impacts and amplified shock accelerations are transmitted to the optical pickup because of its relatively small mass, leading to the mechanical failure of the optical components. In this paper, an explicit finite element analysis was performed to improve the shock isolators. The analysis results were verified with a linear drop test. Based on the verified numerical model, the shapes of the shock isolators were modified via the design of experiments methodology, considering the maximum stress. The modified shock isolators were fabricated and tested under linear drop conditions. The shock isolation performance of the modified isolators was improved by 18 %.

Original language	English
Pages (from-to)	1615-1623
Number of pages	9
Journal	Microsystem Technologies
Volume	19
Issue number	9-10
DOIs	https://doi.org/10.1007/s00542-013-1871-3
Publication status	Published - 2013 Sep

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Hardware and Architecture
Electrical and Electronic Engineering

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title = "Design of modified shock isolators for the optical pickup in an ODD by analytical and experimental methods",

abstract = "Optical disk drives are subjected to many different types of shock environments. In particular, during harsh shipping conditions, extremely large impacts and amplified shock accelerations are transmitted to the optical pickup because of its relatively small mass, leading to the mechanical failure of the optical components. In this paper, an explicit finite element analysis was performed to improve the shock isolators. The analysis results were verified with a linear drop test. Based on the verified numerical model, the shapes of the shock isolators were modified via the design of experiments methodology, considering the maximum stress. The modified shock isolators were fabricated and tested under linear drop conditions. The shock isolation performance of the modified isolators was improved by 18 %.",

author = "Wonseok Oh and Seungho Lim and Park, {Kyoung Su} and Park, {No Cheol} and Park, {Young Pil} and Lee, {Jae Sung} and Lee, {Han Baek}",

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AU - Oh, Wonseok

AU - Lim, Seungho

AU - Park, Kyoung Su

AU - Park, No Cheol

AU - Park, Young Pil

AU - Lee, Jae Sung

AU - Lee, Han Baek

PY - 2013/9

Y1 - 2013/9

N2 - Optical disk drives are subjected to many different types of shock environments. In particular, during harsh shipping conditions, extremely large impacts and amplified shock accelerations are transmitted to the optical pickup because of its relatively small mass, leading to the mechanical failure of the optical components. In this paper, an explicit finite element analysis was performed to improve the shock isolators. The analysis results were verified with a linear drop test. Based on the verified numerical model, the shapes of the shock isolators were modified via the design of experiments methodology, considering the maximum stress. The modified shock isolators were fabricated and tested under linear drop conditions. The shock isolation performance of the modified isolators was improved by 18 %.

AB - Optical disk drives are subjected to many different types of shock environments. In particular, during harsh shipping conditions, extremely large impacts and amplified shock accelerations are transmitted to the optical pickup because of its relatively small mass, leading to the mechanical failure of the optical components. In this paper, an explicit finite element analysis was performed to improve the shock isolators. The analysis results were verified with a linear drop test. Based on the verified numerical model, the shapes of the shock isolators were modified via the design of experiments methodology, considering the maximum stress. The modified shock isolators were fabricated and tested under linear drop conditions. The shock isolation performance of the modified isolators was improved by 18 %.

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Design of modified shock isolators for the optical pickup in an ODD by analytical and experimental methods

Abstract

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