Development of a Novel Self-adjusting Balance System Applied to Geotechnical Centrifuge

LIU Xian-jun; WANG Jun; LI Si-zhong; DU Shou-bing; LIU Xiao-gang

doi:10.3969/j.issn.1001-5485.2014.01.0162014,31(01):77-80

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Journal of Changjiang River Scientific Research Institute ›› 2014, Vol. 31 ›› Issue (1) : 77-80. DOI: 10.3969/j.issn.1001-5485.2014.01.0162014,31(01):77-80

Orignal Article

Development of a Novel Self-adjusting Balance System Applied to Geotechnical Centrifuge

LIU Xian-jun,WANG Jun,LI Si-zhong,DU Shou-bing,LIU Xiao-gang

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Abstract

A self-adjusting balance system is developed to achieve real-time trim and reduce unbalanced force when geotechnical centrifuge is running. In this system,a feedback control system which consists of electromagnetic valves,sensors,and a PLC is constructed to controllably inject water into a tank fixed in the counterweight part,and hence adjusting the unbalance induced by changes of load in the work part. This system was applied to a geotechnical centrifuge to conduct self-adjusting balance tests,and finally achieved real-time trim when centri-fuge’s speed or load in the work part increases. Compared with traditional adjusting balance mechanism which drives a counterweight block by a hydraulic cylinder or a motor,this system has a simpler structure and a wider range of adjusting balance.

Key words

geotechnical centrifuge / trim by water injection / real-time / self-adjusting balance / feedback control

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LIU Xian-jun,WANG Jun,LI Si-zhong,DU Shou-bing,LIU Xiao-gang. Development of a Novel Self-adjusting Balance System Applied to Geotechnical Centrifuge[J]. Journal of Changjiang River Scientific Research Institute. 2014, 31(1): 77-80 https://doi.org/10.3969/j.issn.1001-5485.2014.01.0162014,31(01):77-80

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