The feasibility of computing non-linear transient finite element simulations of aircraft landing gear brake whirl and squeal is demonstrated and discussed. Methodology to conduct the high frequency transient analysis is developed using an explicit integration finite element approach. Results indicate the approach has the capability to simulate brake dynamic behavior in dynamometer and aircraft landing gear installations - thus enabling evolution of modifications to braking systems that lead to more stable and robust design. A simple multi-disk brake model is developed and described. Modeling techniques for including the dynamometer road wheel and runway in the simulation are given. Issues such as piston housing hydraulic fluid stiffness and damping effects, and parametric friction modelling are discussed.
Nonlinear transient analyses of aircraft landing gear brake whirl and squeal
Nichtlineare Übergangsanalyse des Wirbelns und Quietschens von Bremsen am Flugzeugfahrwerk
1995
8 Seiten, 10 Bilder, 8 Quellen
Aufsatz (Konferenz)
Englisch
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