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On the calculation of available potential energy in internal wave fields
available potential energy internal wave fields
2015/6/30
A comparison of three common formulations for calculating the available potential energy (APE) in internal wave fields is presented, namely the perturbation APE, APE1, the exact local APE, APE2, and i...
Background and Available Potential Energy in Numerical Simulations of a Boussinesq Fluid
Background and Available Potential Energy Numerical Simulations a Boussinesq Fluid
2014/10/23
In flows with stable density stratification, a p ortion of the gravitational p otential energy is available for conversion to kinetic energy. The remainder is not and is called “background p otential ...
混合动力液压挖掘机动臂势能回收系统（Research on the System of Arm Potential Energy Recovery in Hybrid Hydraulic Excavators）
液压挖掘机 混合动力 动臂势能
2009/5/22
通过对液压挖掘机典型工况特性的分析，提出了一种并联式混合动力液压挖掘机动臂势能回收系统，分析了液压缸负载受力情况，建立了液压缸、节流阀、液压马达等液压元件以及永磁同步电机、镍氢电池组等电气元件的数学模型，提出了具有动臂势能回收功能的混合动力液压挖掘机整机控制策略以及能量回收控制方法。理论分析和仿真结果表明，并联式混合动力液压挖掘机除了能改善发动机工作状况提高燃油效率外，可以通过动臂势能回收进一步提...