Affiliation:
1. Institute for Applied Mechanics, Technical University of Munich, D-85747 Garching, Germany
Abstract
The efficient design of hydraulic systems requires fast simulation methods. In most simulation programs, the hydraulic components are coupled by compressible joints. Since the compressibility of oil is very small, this leads to stiff differential equations. To avoid these difficulties stiff elastic couplings can be replaced by algebraic and, in some cases, unilateral constraints. Examples for hydraulic components with unilateral behavior are check valves, cylinders with stop limits and fluid volumes, in which cavitation can occur. The resulting complementarity equations can be solved with a standard Lemke algorithm. Compared to conventional methods, this leads to a significant reduction of computational effort.
Subject
Mechanical Engineering,Mechanics of Materials,Aerospace Engineering,Automotive Engineering,General Materials Science
Reference16 articles.
1. Hullender, D. A. and Healey, A. J. , 1981, Rational Polynomial Approximations For Fluid Transmission Line Models, Fluid Transmission Line Dynamics, ASME, Washigton DC , 33-35.
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