Modal Analysis of Tire and System Simulation

Ushijima, Takao; Takayama, Masahiro

doi:10.4271/880585

Cited by 11 publications

(1 citation statement)

References 2 publications

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“…Mills et al [2] excited the wheel axle longitudinally: the longitudinal frequencies decreased by 15% in the velocity range 0-60 kmlh. Ushijima et al [ 3 ] excited the tyre by a hammer and a road obstacle. He found that the frequency of the vertical mode of vibration decreased by 15% in the velocity range 0-80 kmlh.…”

Section: Frequency Response Functionsmentioning

confidence: 99%

Dynamic Tyre Responses to Brake Torque Variations

Zegelaar

Pacejka

1997

Vehicle System Dynamics

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An in-plane tyre model to study the tyre responses to brake torque variations is presented. This model conceives a rigid ring (representing the tyre tread band) on an elastic foundation (representing the tyre sidewalls). The contact of the. ring with the road is governed by a vertical residual stiffness representing the large deformation of the.tyre in the contact patch and a slip model that generates the horizontal forces in the contact patch. This slip model, which is based on the relaxation length principle, is formulated such that it can handle zero velocity conditions. Experiments were carried out on a test drum. The tyre was excited by applying variations of brake torque. The measured frequency response functions of the longitudinal' force show clearly two modes of vibration of the tyre at 33 and 77 Hz. The frequency response functions are used to estimate the lyre parameters. Large variations of brake torque are used to validate the tyre model. Two responses are discussed: successive step increases in brake pressure and braking with wheel lock.

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Section: Frequency Response Functionsmentioning

confidence: 99%

Dynamic Tyre Responses to Brake Torque Variations

Zegelaar

Pacejka

1997

Vehicle System Dynamics

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Tire Noise

Nakajima¹

2019

Advanced Tire Mechanics

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Three-dimensional mode shapes of a tire using experimental modal analysis

Yam

Dihua

Zhang

2000

Experimental Mechanics

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ABSTRACT--Experimental modal analysis of a tire was carried out. Mode shapes in the radial, tangential and lateral directions of the tire under radial and tangential excitation, respectively, were obtained for the first time. The consistency of tire experimental modal frequencies in three directions was observed after careful design and adjustment of the test method. This indicates the accuracy of the experiments. The phenomena discovered in this experimental study, such as the mode shapes of the rim and the complex modes of the tire, are discussed in detail. The modal parameters acquired from experimental modal analysis of the tire can be used for the modeling of tire dynamics.

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Modal Analysis of Tire and System Simulation

Cited by 11 publications

References 2 publications

Dynamic Tyre Responses to Brake Torque Variations

Dynamic Tyre Responses to Brake Torque Variations

Tire Noise

Three-dimensional mode shapes of a tire using experimental modal analysis

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