Undergraduate Mechanical Vibrations Laboratory Experiments

这个项目的目的是通过学生的课堂演示和实验室测量来补充机械振动基本原理的课堂介绍。需要设备和仪器来激发和测量机械系统的响应。各种各样的弹簧质量系统（带或不带阻尼器）将被建立在课堂上供教师和学生在实验室使用。弹簧质量将是一个、两个和多个自由度的简单模型，并将被设计成与理论相结合。需要设备以受控的方式激励这些系统。需要仪器来测量激励和系统响应。主要设备包括振动台、带快速傅立叶变换分析仪的模态分析系统、带打印机和绘图仪的PC机以及加速度计。设计了八个实验室实验来支持基本的机械振动理论。该项目意义重大，因为它为复杂的理论提供了物理维度，并使学生接触到现代振动测量和分析技术。

The objective of this project is to supplement classroom presentations of the fundamentals of mechanical vibrations with classroom demonstrations and laboratory measurements by students. Equipment and instrumentation are needed to excite and measure mechanical system response. Various spring-mass systems (with and without dashpots) will be built for use by instructor in the classroom and by students in the laboratory. The spring-mass will be simple models of one, two, and many degrees of freedom and will be designed to interface with theory. Equipment is needed to excite these systems in a controlled manner. Instrumentation is needed to measure the excitations and system responses. Major equipment includes a shake table, modal analysis system with fast Fourier transform analyzer, PC computer with printer and plotter, and accelerometers. Eight laboratory experiments are designed to support fundamental mechanical vibration theory. The project is significant because it gives a physical dimension to complex theory and exposes students to modern vibration measurement and analysis techniques.