Location
St. Louis, Missouri
Date
03 Jun 1993, 4:30 pm - 5:30 pm
Abstract
A high sensitive and large semi-anechoic chamber, designed by a new system of isolation is reported in this paper. The combined isolation of a large size elastic plate on sand cushion and pile barriers was used in this system. By properly designing the stiffness of elastic base plate, the amplitude of the anechoic chamber floor under the action of dynamic toad of testing vehicle can be controlled within the allowed range of accuracy. This new system has been conformed with the disturbance of outside of vibration on anechoic chamber (passive vibration isolation) and with that of vehicle testing inside the anechoic chamber (active vibration isolation). The cost of the anechoic chamber designed by the new system has been reduced by 93% compared with the traditional chamber, and also the period of construction was much shorter. It has been tested by the “Acoustics Research Institute of the China Academy of Science” that the background vibration of the anechoic chamber has met accurate requirement. It has been in use for quite a few years and great economic benefit has been made.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
3rd Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 1993 University of Missouri--Rolla, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Gao, Guang-Yun and Yang, Xian-Jian, "Combined Isolation Foundation by Elastic Base Plate and Ground Barriers" (1993). International Conference on Case Histories in Geotechnical Engineering. 2.
https://scholarsmine.mst.edu/icchge/3icchge/3icchge-session04/2
Combined Isolation Foundation by Elastic Base Plate and Ground Barriers
St. Louis, Missouri
A high sensitive and large semi-anechoic chamber, designed by a new system of isolation is reported in this paper. The combined isolation of a large size elastic plate on sand cushion and pile barriers was used in this system. By properly designing the stiffness of elastic base plate, the amplitude of the anechoic chamber floor under the action of dynamic toad of testing vehicle can be controlled within the allowed range of accuracy. This new system has been conformed with the disturbance of outside of vibration on anechoic chamber (passive vibration isolation) and with that of vehicle testing inside the anechoic chamber (active vibration isolation). The cost of the anechoic chamber designed by the new system has been reduced by 93% compared with the traditional chamber, and also the period of construction was much shorter. It has been tested by the “Acoustics Research Institute of the China Academy of Science” that the background vibration of the anechoic chamber has met accurate requirement. It has been in use for quite a few years and great economic benefit has been made.
