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Parameter studies on impact in a lap joint

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Abstract

To represent a loose lap joint, a beam impacting four springs with gaps is modeled. Modal analysis with base excitation is solved, and time histories of contact points are closely monitored. Using the impulse during steady state response, six influential parameters are studied: damping ratio, contact stiffness, intermediate contact position, gap, excitation amplitude and beam height. For all parameters, the system response is highly controlled by modes with two contacting springs. Each parameter’s effect on system response is presented including unstable regions, unique trend behaviours result. Recommendations for structural designers are also noted.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Stony Brook University, Stony Brook, NY, 11790, USA

    Amir M. Rahmani & Elizabeth K. Ervin

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  1. Amir M. Rahmani
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  2. Elizabeth K. Ervin
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Correspondence to Elizabeth K. Ervin.

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Rahmani, A.M., Ervin, E.K. Parameter studies on impact in a lap joint. Front. Mech. Eng. 10, 64–77 (2015). https://doi.org/10.1007/s11465-014-0322-x

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  • DOI: https://doi.org/10.1007/s11465-014-0322-x

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