离心机电液振动台液压系统设计
|
摘要
针对目前离心机电液振动台系统由于短时间流量大和静不平衡力使得系统的平稳性差及波形复现精度低的问题,设计了振动台系统的水平和垂直激振系统,采用静力平衡系统来减小系统的不平衡力,利用高压蓄能器进行大流量高压供油、低压蓄能器吸收振动过程中的脉动和冲击。并进行了一系列的振动测试实验,结果表明:该系统能够高精度且平稳地复现给定信号,验证了设计方案的可行性。
Due to need of the large flow hydraulic oil within short time and the unbalanced static force,the stationeriness and precision of the waveform reproduction of the centrifugal shaker are very poor.Aiming to the problems above,the horizontal and vertical excitation systems were designed.Using the balanced static force system,the unbalanced force was decreased.The high pressure accumulator was introduced to provide large high pressure oil and low pressure accumulator to absorb the pulsation and impact.A series of testing experiment were performed.The experimental results indicate that the designed system can be used to reproduce acceleration waveform smoothly and precisely.It proves the feasibility of the design.
Due to need of the large flow hydraulic oil within short time and the unbalanced static force,the stationeriness and precision of the waveform reproduction of the centrifugal shaker are very poor.Aiming to the problems above,the horizontal and vertical excitation systems were designed.Using the balanced static force system,the unbalanced force was decreased.The high pressure accumulator was introduced to provide large high pressure oil and low pressure accumulator to absorb the pulsation and impact.A series of testing experiment were performed.The experimental results indicate that the designed system can be used to reproduce acceleration waveform smoothly and precisely.It proves the feasibility of the design.
引文
[1]孙锐,袁晓铭,王永志,等.NEES系统中振动离心机最新进展及国内振动离心机发展设想[J].世界地震工程,2010,26(1):31-39.
[2]于玉贞,陈正发.土工离心机振动台系统的发展研究[J].水利水电技术,2005(5):19-21.
[3]冉光斌.土工离心机及振动台发展综述[J].环境技术,2007(3):25-29.
[4]冉光斌,洪建忠,刘小刚.巨型多功能土工离心机吊篮的设计[J].机械设计,2011(10):33-36.
[5]ILANKATHARAN Mahadevan,KUTTER Bruce.NumericalSimulation of a Soil Model-model Container-centrifugeShakering Table System[C]//Geotechnical Earthquakeand Engineering and Soil Dynamics IV Congress,2008:1-10.
[6]章为民,赖忠中,徐光明.电液式土工离心机振动台的研制[J].水利水运工程学报,2002(1):63-66.
[7]韩宇航,宁菲,王宇飞.振动离心设备控制技术研究[J].装备环境工程,2010,7(6):277-280.
[8]张建民,于玉贞,濮家骝,等.电液伺服控制离心机振动台系统研制[J].岩土工程学报,2004,26(6):843-845.
[9]李洪人.液压控制系统[M].北京:国防工业出版社,1990:99-103.
[10]王文斌.机械设计手册[M].北京:机械工业出版社,2004:23-173,492.
[2]于玉贞,陈正发.土工离心机振动台系统的发展研究[J].水利水电技术,2005(5):19-21.
[3]冉光斌.土工离心机及振动台发展综述[J].环境技术,2007(3):25-29.
[4]冉光斌,洪建忠,刘小刚.巨型多功能土工离心机吊篮的设计[J].机械设计,2011(10):33-36.
[5]ILANKATHARAN Mahadevan,KUTTER Bruce.NumericalSimulation of a Soil Model-model Container-centrifugeShakering Table System[C]//Geotechnical Earthquakeand Engineering and Soil Dynamics IV Congress,2008:1-10.
[6]章为民,赖忠中,徐光明.电液式土工离心机振动台的研制[J].水利水运工程学报,2002(1):63-66.
[7]韩宇航,宁菲,王宇飞.振动离心设备控制技术研究[J].装备环境工程,2010,7(6):277-280.
[8]张建民,于玉贞,濮家骝,等.电液伺服控制离心机振动台系统研制[J].岩土工程学报,2004,26(6):843-845.
[9]李洪人.液压控制系统[M].北京:国防工业出版社,1990:99-103.
[10]王文斌.机械设计手册[M].北京:机械工业出版社,2004:23-173,492.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心