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Perturbation Analysis of Nonlinear Wheel Shimmy
Journal of Aircraft, 2001A perturbation analysis of nonlinear wheel shimmy in aircraft landing gear is presented for nonlinear models that include terms due to coulomb friction between the oleo struts and freeplay in the torque links. The method of multiple timescales is used to obtain general expressions for the limit-cycle amplitude and the frequency that are functions of ...
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A nonlinear model of bicycle shimmy
Vehicle System Dynamics, 2018This paper presents a nonlinear model accurately describing, both qualitatively and quantitatively, the onset and dynamics of bicycle shimmy.
Tomiati, Nicolò +2 more
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CORRECTION OF BALLOON-TIRE SHIMMYING
SAE Technical Paper Series, 1924<div class="htmlview paragraph">Shimmying was noticeable before four-wheel brakes began to be used, but since that time the trouble has been greatly increased. Two kinds are distinguishable; (<i>a</i>) low-speed shimmying, a violent wabble of the front wheels about the king-pins without a bouncing of the front axle, and (<i>b<
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1975
Abstract : A T-37 nose gear is modeled as a multiple lumped mass system with four torsional-degrees-of-freedom and one lateral-degree-of-freedom. Fuselage flexibility is incorporated and a Von Schlippe tire model is used. The equations of motion for various input conditions are solved using measured gear properties.
Tom Mahone, Max Gamon
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Abstract : A T-37 nose gear is modeled as a multiple lumped mass system with four torsional-degrees-of-freedom and one lateral-degree-of-freedom. Fuselage flexibility is incorporated and a Von Schlippe tire model is used. The equations of motion for various input conditions are solved using measured gear properties.
Tom Mahone, Max Gamon
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2010
Due to excessive wearing, the dynamic shimmy of front wheels may lead to fatal accidents and shorten the components ‘life’. Thus, its prevention continues to be an important concern in design and operation of road vehicles and aircrafts. As viewed from energy variation in the dynamic systems, the dynamic shimmy happens when sufficent kinetic energy of ...
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Due to excessive wearing, the dynamic shimmy of front wheels may lead to fatal accidents and shorten the components ‘life’. Thus, its prevention continues to be an important concern in design and operation of road vehicles and aircrafts. As viewed from energy variation in the dynamic systems, the dynamic shimmy happens when sufficent kinetic energy of ...
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Shimmy Out of a Tacky Situation
CoatingsPro, 2010Need DFT readings on a tacky surface? Here’s how to shimmy out of that sticky situation.
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Nonlinear Modelling of Shimmying Wheels
1993The problem of the so-called shimmying wheel has been studied in the special literature for several years (see e. g. the early paper of Schlippe and Dietrich, 1941). These investigations are stimulated by the studies of the dynamical behaviour of trailers or those of the steered wheels of cars, landing gears of aeroplanes, etc. (see e. g. Scheidl et al.
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