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1.前言作为最近耐震试验的动向,可举出伴随实物试验增加被试体的大型化。随之,虽然振动试验机本身亦趋干大型化,但实际上存在着被试体的质量甚至达到振动台质量好几倍的情况,其影响却成为问题。关于被试体为集中质量时装载质量的影响及其补偿方法,已于本研究的第一部分中作了叙述,但在实际耐震试验中被试体却具有几个共振点,往往成问题的是在接近共振点上的动态。因此,本文探讨被试体有共振点时,被试体给控制特性的影响及其补偿方
1. Introduction As a recent trend of seismic tests, there is an increase in the size of the test subject accompanying physical tests. In the meantime, although the vibration testing machine itself tends to become larger and larger in size, the quality of the test object actually reaches the quality of the shaking table several times, and its influence has become a problem. The influence of loading quality when the test subject is concentrated mass and its compensation method have been described in the first part of this study. However, the actual test subjects have several resonance points, which is often problematic Near the resonance point on the dynamic. Therefore, this article discusses the subject when the resonance point, the test subject to the control characteristics and compensation