析 25 6结 语 27 参考文 献 28 附 录 29 致 谢 30 ii内江师 范学院木科毕业论文 Abstract. The mechanical vibration mainly includes three kinds of vibrations: the simple harmonic oscillator, the pure clamping vibration and the forced damping vi brat ion. According to the three vibrat ions, we can build models for them, list the vibration equations. After giving the initial condilions, we can carry out analog simulations to test the three vibrations by using Matlab Simulink functions, and obtain the images of vibration displacement, velocity, acceleration, kinetic energy, potential energy, mechanical energy variation over time. In addition, we come to the function of oscillator displacement over time after we seek the solution of equations. And then we can gain the derivatives of their first order and second order respectively, so we can draw functions of speed and acceleration. Furthermore, we can get the functions of kinetic energy, potential energy, mechanical energy by a simple operation. Let us analyze the images by analyzing the functions, and then we make a comparison between the images of an
