Analysis and suppression the resonance of a four-wire-suspension asymmetric-type optical pickup actuator

• Main Authors: Chun-yao Wang, 王竣耀
• Other Authors: Yi-mei Huang
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/35337293648478224171

碩士 === 國立中央大學 === 機械工程研究所碩士在職專班 === 98 === ANSYS,　the　finite　element　simulation　software,　is　used　to　analyze　the　dynamic　characteristics　of　a　four-wire-suspension　asymmetric-type　optical　pickup　actuator.　The　attention　is　focusing　on　the　frequency　responses　between　1KHz　and　10KHz.　The　FEM　model　of　the　actuator　is　modified　according　to　comparison　of　the　numerical　and　the　experimental　data. 　　　　It　can　be　proved　that　the　flexible　PCB　can　reduce　the　transmissibility.　Also,　the　unmovable　parts　can　actually　be　affected　by　the　driving　force　of　the　voice　coil　motor,　which　passes　through　wires　and　causes　unexpected　responses.　Then,　certain　design　improvements　are　made　based　on　the　numerical　results.