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1.前言金属的疲劳或构件的振动虽然从数世纪以前开始研究了,但目前在各方面仍以重要的问题来加以对待。其主要原因是随着技术的发展所有物质追寻轻量化、大形化、高速化倾向的缘故吧。过去,疲劳试验是对试样施加单纯的拉伸、压缩或正弦波应力而进行的,但已认识到单靠这些方法是得不到准确的疲劳强度的,因而开始重视了随机波试验的必要性。另外还产生了对构件给予与地震同样的振动,来测量其强度的愿望。适应这种实际情况,本公司名古屋航空机制作所同新兴通信工业公司共同研制了
1. Introduction Although metal fatigue or vibrations of components have been studied centuries ago, at present there are still important issues to be treated in all aspects. The main reason is that with the development of technology, all materials are pursuing the tendency of being lighter, bigger and faster. In the past, fatigue tests were performed by applying simple tensile, compressive or sine wave stresses to the specimens, but it has been recognized that accurate fatigue strength alone can not be obtained by these methods and therefore the importance of stochastic wave testing Sex. In addition, there was also a desire to give the members the same vibrations as earthquakes to measure their strength. Adapting to the actual situation, the Company’s Nagoya Aircraft Corporation co-developed with Emerging Communications Industry Corporation