Analytical Coupled Modeling and Model Validation of Hydraulic On/Off Valves

作者：Mahrenholz John^*; Lumkes John Jr

来源：Journal of Dynamic Systems Measurement and Control-Transactions of the ASME, 2010, 132(1): 011005.

DOI：10.1115/1.4000072

• control nonlinearities
• electromagnets
• hydraulic control equipment
• on-off control
• solenoids
• valves

The goal of this paper is to describe a method for modeling high speed on/off valves. This model focuses on the nonlinearities of the electromagnetic, fluidic, and mechanical domains, specifically within solenoid driven poppet style valves. By including these nonlinearities, the model accurately predicts valve transition time for different driving voltages and valve strokes. The model also predicts fluid transients such as pressure ripple. Unique attributes of the model are the inclusion of the effect of eddy currents and fringing while still being fully coupled with the fluid and mechanical domains. A prototype was constructed and used to experimentally validate the model. By developing accurate lumped parameter models, valve dynamics can be applied to hydraulic systems to accurately capture their dynamics.

• 出版日期2010-1