论文部分内容阅读
本文在详尽分析影响现行脉冲锤冲击激振测试精度的原因的基础上,提出两种能克服其缺点的电控式冲击激振新方法。通过对系统本身的测试和在一个简支梁系统上所做的实验表明:新方法不仅在原理上是正确的,试验的具体实施方案是可行的,测试结果是可信的,而且具有脉冲锤冲击激振所难于实现的许多优点。本文还详细介绍了这两种电控式新型冲击激振试验方法的原理、实施方案和实验结果。
Based on the detailed analysis of the reasons that affect the accuracy of the current pulse hammer test, two new kinds of electronically controlled shock excitation methods that can overcome its shortcomings are proposed. Experiments on the system itself and on a simple supported beam system show that the new method is not only correct in principle, but the specific implementation of the test is feasible, the test results are credible, and the pulse hammer Impact excitation is difficult to achieve the many advantages. The paper also introduces the principle, implementation scheme and experimental results of the two new types of electronically controlled shock excitation test methods in detail.