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Combined implementation of holographic and speckle interferometry for comparative local stress analysis at different vibration modes

机译:全息和散斑干涉术的组合实现,用于在不同振动模式下进行比较局部应力分析

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Abstract: New capability of combined application of time-averaged holographic interferometry and defocused speckle photography, allowing us a comparative analysis of local stresses corresponding to different vibration modes, is considered. The main aspects of the technique developed are illustrated by using as an example bending oscillations of thin square plate with a large central circular hole. Experimental results are compared with corresponding numerical data obtained by means of the MSC/NASTRAN software. !8
机译:摘要:结合了时间平均全息干涉法和散焦散斑摄影技术的新功能,可以比较分析对应于不同振动模式的局部应力。通过举例说明具有较大中心圆形孔的薄方形板的弯曲振荡,说明了所开发技术的主要方面。将实验结果与通过MSC / NASTRAN软件获得的相应数值数据进行比较。 !8

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