某供弹动力系统泵站容量和蓄能器参数匹配研究

某供弹动力系统是自行研制产品,采用液压储能方案解决高速供弹瞬间大功率输出要求与系统分配的小功率电源之间的矛盾,其泵站容量和蓄能器参数匹配设计是实现节能的关键.为此,利用AMESim软件平台构建机械—液压—控制于一体的供弹动力系统模型,进行液压系统动力学分析,研究泵站容量和蓄能器参数的匹配方法.分析结果表明:在一个工作循环中蓄能器有多次充、放油过程,以系统平均耗油的0.7～0.8倍作为泵站容量,适当提高系统最高压力(0.6～0.8 MPa),以蓄能器油腔容积变化的最大范围和小压差确定蓄能器参数,可稳定蓄能器连续供油速率,保证系统及时供弹,达到节能目的.

Research on Parameter Matching between Pump Capacity and Accumulator for Feeding Power System

The feeding power system is a self developed product.An energy-saving hydraulic project was put forward in order to solve the antinomy between transient big power output to adapt rapidly feeding speed and small input power assigned by system.Parameter matching between pump capacity and accumulator was the key that carries out saving energy for the design program.So,based on AMESim,an integral machine-hydraulic-control simulation model was built for the feeding power system.Dynamics character of the system was analyzed and parameter matching method between pump capacity and accumulator parameter was researched.The analyzing results indicate there are many processes of charging and releasing oil for accumulator in a circulate,the pump capacity is matched according to 0.7 or 0.8 times of average consuming oil of the system,the highest pressure of system is raised appropriately(0.6~0.8 MPa),accumulator parameter is decided according to the biggest changing capacity of oil reservoir and small differential pressure so that the system can provides oil in stable velocity.Such that,the feeding power system can feed in time and saving energy purpose is achieved.