CAJ | 학술논문

混凝土泵送液压系统在换向阀换向时普遍存在着严重的液压冲击现象，产生液压冲击的主要原因是换向时油路中的油液的动能瞬时转化为压力能，而油液的动能与通过换向阀的瞬时流量有关。针对此种现象，文章提出采用双换向阀加蓄能器的方法来控制液压冲击，通过理论分析、AMESim建模与仿真分析表明此种方法可以有效减小液压冲击，最后通过试验验证了所述方法的有效性。
혼응토빙송액압계통재환향벌환향시보편존재착엄중적액압충격현상，산생액압충격적주요원인시환향시유로중적유액적동능순시전화위압력능，이유액적동능여통과환향벌적순시류량유관。침대차충현상，문장제출채용쌍환향벌가축능기적방법래공제액압충격，통과이론분석、AMESim건모여방진분석표명차충방법가이유효감소액압충격，최후통과시험험증료소술방법적유효성。
T here exists serious hydraulic impact in concrete pumping system w hen the selector valve re-verses because the kinetic energy of the oil will be transformed into pressure energy instantly while re-versing .And the kinetic energy of the oil is related to the instantaneous flow passing through the valve .Aiming at this problem ,the method to control hydraulic impact with double selector valves plus an energy accumulator is proposed .Based on the theoretical analysis and AM ESim modeling and simulation analysis ,the method is proved to be effective in reducing the hydraulic impact ,w hich is further testified through the relevant experiments .