Study on solving the ill-posed problem of force load reconstruction

Abstract Force load reconstruction methodology is used to estimate the unknown time-dependent external load forces in a damped system based on the structural response. However, the measurement errors of responses and estimation error of the system can affect the reliability of the results in several such inverse problems. An implicit Landweber method was proposed for single-source and multi-source force load reconstructions, and the concept of response sensitivity was used to reconstruct the dynamic force load. Numerical simulations and transonic wind tunnel tests of a spacecraft model demonstrate the effectiveness and robustness of the proposed method.

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