Techno Press
You logged in as Techno Press

Advances in Aircraft and Spacecraft Science
  Volume 5, Number 2, March 2018 , pages 177-186

Transient Testing from LV / SC coupled analysis by new shock synthesis
Alain Girard, Etienne Cavro and Paul-Eric Dupuis

    This paper deals with the idea to replace the usual high-level sine sweep test on shaker at system level, very severe, by a low level one completed by a transient test in the same configuration, in order to be more representative of the real environment, thus limiting over testing and improving the payload comfort. The problem of the transient test specification is first discussed. The proposed solution is to derive from LV/SC coupled analyses a shock response spectrum corresponding to two damping ratios. Then, the question of adequate shock synthesis is tackled. A new method with a given spectrum is considered for better potential and accuracy than the usual wavelets. A campaign on the Intespace bi-shaker devoted to system level showed its capability to perform the resulting test with one spectrum. First investigations to extend this approach to two spectra are in progress.
Key Words
    SRS; shock synthesis; transient testing; fast sine sweep
Alain Girard, Etienne Cavro and Paul-Eric Dupuis: INTESPACE, 2 Rond-Point Pierre Guillaumat, 31029 Toulouse Cedex 4, France

Techno-Press: Publishers of international journals and conference proceedings.       Copyright © 2023 Techno Press
P.O. Box 33, Yuseong, Daejeon 305-600 Korea, Tel: +82-42-828-7996, Fax : +82-42-828-7997, Email: