With the development of society and the advancement of science and technology,people often come into contact with vibration in their daily lives and at work.From our most common transportation systems to the various mechanical devices we use in our daily lives,in many cases our bodies are in a vibrating environment.These widespread mechanical vibrations have a great impact on our human physiological activities in production practice.In order to protect people’s health and create a comfortable working and living environment for people,studying vibration is of great significance to us human beings.