• Sensitivity analysis and its application for dynamic improvement

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      https://www.ias.ac.in/article/fulltext/sadh/025/03/0291-0303

    • Keywords

       

      Sensitivity analysis; dynamic improvement structural modification; laser beam printer; motorbike; disc drive; mechatronics; automobile engine

    • Abstract

       

      In order to determine appropriate points where natural frequency or mode shape under consideration can be effectively modified by structural modification, the theoretical background of sensitivity analysis is described, followed by experimental verification with a simple structure. Then it can be extended to (1) operational deflection shape, where a problem arises at offresonance frequency, (2) relative motion, (3) transmitted force through connecting points between components, (4) servo system, which consists of electrical elements with mechanical elements, and (5) acoustics generated by the vibration of the structure. To illusrate its effectiveness, many actual examples are given.

    • Author Affiliations

       

      Nobuyuki Okubo1 Takeshi Toi1

      1. Department of Precision Mechanics, Chuo University, Tokyo, Japan
    • Dates

       
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