非对称薄壁梁自由振动的试验验证

介绍了薄壁梁的新理论和新方法,并比较了它们的不同。这些理论大多都缺乏试验数据支持,无法验证其准确性和适用性,尤其对于非对称薄壁梁。进行了双向不对称薄壁开口梁的自振试验,提供试验数据,用来验证各理论、方法的准确性和适用性。基于Vlasov理论,提出了理论数值模型,并将它应用于试件。将该理论所得结果与试验结果、有限元程序所得结果进行比较。

Experimental Validation of Free Vibrations from Nonsymmetrical Thin Walled Beams

Regularly, new theories and approaches about thin walled beams are presented in the literature and different comparisons are performed between them. However, in most cases, it is notable the lack of experimental data, particularly about nonsymmetrical thin walled beams, which are essential to compare the results in order to obtain reliable conclusions about the accuracy and applicability of these theories. In this paper, an experimental study about natural frequencies of doubly unsymmetrical thin walled and...