基于试验测试的超重力离心模拟环境下加载缸稳压方案研究

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中图分类号：TH137

DOI：10.3969/j.issn.1004-132X.2025.08.001 开放科学（资源服务）标识码（OSID）：

Abstract：To solve the problems of excessive pressure fluctuations in the simulation environment of high gravity centrifugal environment without an external oil source，the factors causing pressure fluctuations were analyzed，and experimental tests were conducted on each factor.Based on the analysis of each factor， an accumulator stabilization scheme was proposed，and the effects of accumulator working parameters， working pressure，and working medium parameters on stabilization performance were compared under different deformation conditions of specimens through supergravity experiments.The experimental test results show that within the temperature range of 36～42.5∘C ， the pressure fluctuation of oil caused by temperature changes is less than 4% . The deformation of the specimen is the main factor affecting pressure fluctuations，with a pressure fluctuation ratio of up to 47% caused by a deformation of 1mm in the samples. The fluctuation ratio of the accumulator during pressure stabilization under supergravity is proportional to the working pressure and the deformation of the specimen. The use of two 300mL gas volume accumulators may achieve the requirement of less than 10% internal pressure fluctuation of 20MPa ，which is consistent with theoretical calculations.The test provides technical support for controling pressure fluctuations in high-temperature and high-pressure devices under supergravity environments.

Key words： high gravity centrifugal environment； temperature；working pressure；pressure fluctuations；accumulator；working medium

0 引言

地球内部物质组成、演化等过程的高温高压实验研究长期以来一直是地球科学的热点领域之_[1-3]，目前国内多所研究机构及高校，如中科院广州地化所、吉林大学、北京大学、浙江大学及中国地质大学等均利用常重力地面装置进行了相关实验研究，但其整机设备多依赖进口，且国产的设备所采用的重要元部件亦多依赖进口，国产仪器仍与世界先进水平有着不小的差距[4]。（剩余9673字）