Analysis and research of vibration isolation effect of air floating platform on different floors

• 1、School of Civil Engineering, Guangzhou University, Guangzhou, 510006
• 2、Shenzhen Guangming District Science City Development Agency, Shenzhen, 518107
• 3、Guangdong Architectural Design Research, Guangzhou, 510000

Abstract：In order to meet the requirements of building use functions, high-precision laboratories need to be placed on the floor above the first floor of the building, resulting in high-precision test platforms in the laboratory will also be distributed on different floors of the building along with the laboratory. The equipment on the test platform is very sensitive to vibration. In order to reduce the vibration of the platform, air springs need to be set up to form an air floating platform. However, the transmission of external vibration along the height of the structure is a process of amplification. Whether the vibration reduction effect of air floating platforms arranged on different floors is obviously different, Therefore, taking a hospital building as an example, air floating platforms arranged on different floors are taken as the research object, The mechanical model and simulation method of the air spring in the air floating platform are studied. The building and air floating platform models are established to analyze the sine wave of different frequencies and the vibration wave of the actual environment. The results show that the simulation method of air spring is feasible and effective; The air floating platform has a good vibration isolation effect, and it has little influence on the vibration isolation effect when it is placed in different floors.

Keywords： Micro vibration Air spring Air floating platform Vibration isolation