机械研究与应用
機械研究與應用
궤계연구여응용
MECHANICAL RESEARCH & APPLICATION
2015年
2期
176-178,182
,共4页
超越负载%负载口独立%压力流量控制%稳定性
超越負載%負載口獨立%壓力流量控製%穩定性
초월부재%부재구독립%압력류량공제%은정성
over-running load%SMISMO valve%pressure and flow control%stability
在超越负载工况下，传统液压系统中负载控制阀或平衡阀负载速度控制效果差、容易发生速度抖动，为改善这些不足，采用负载口独立技术并进行速度控制特性的分析，给出了压力流量复合控制策略，建立了超越伸出和超越缩回两种工况下的数学模型，通过AMESim与simulink进行联合仿真，结果表明，负载口独立技术在保证系统速度控制特性的前提下，能够进一步提高系统的稳定性能。
在超越負載工況下，傳統液壓繫統中負載控製閥或平衡閥負載速度控製效果差、容易髮生速度抖動，為改善這些不足，採用負載口獨立技術併進行速度控製特性的分析，給齣瞭壓力流量複閤控製策略，建立瞭超越伸齣和超越縮迴兩種工況下的數學模型，通過AMESim與simulink進行聯閤倣真，結果錶明，負載口獨立技術在保證繫統速度控製特性的前提下，能夠進一步提高繫統的穩定性能。
재초월부재공황하，전통액압계통중부재공제벌혹평형벌부재속도공제효과차、용역발생속도두동，위개선저사불족，채용부재구독립기술병진행속도공제특성적분석，급출료압력류량복합공제책략，건립료초월신출화초월축회량충공황하적수학모형，통과AMESim여simulink진행연합방진，결과표명，부재구독립기술재보증계통속도공제특성적전제하，능구진일보제고계통적은정성능。
There are some defects in the traditional over-running load hydraulic system, such as velocity control is poor and prone to velocity jitter, etc.In order to improve these weaknesses, the components and work principle of the separate meter in and separate meter out ( SMISMO) were introduced and the features of velocity control were analyzed, the pressure and flow control strategies were given in this paper, the numerical model of hydraulic system was built by the co-simulation of AMESim and simulink, which showed that the novel control system possessed higher velocity control precise and good stable characteris-tics.
