Synthesis of functional models for tyre vibration analysis

  • 0.50 MB
  • 3921 Downloads
  • English
by
University of Birmingham , Birmingham
Statementby Eric Vinesse.
ID Numbers
Open LibraryOL13890996M

(). Noise, vibration, harshness model of a rotating tyre. Vehicle System Dynamics: Vol. 54, The 4th International Tyre Colloquium, pp. Cited by: 5. A Ride Comfort Tyre Model for Vibration Analysis in full Vehicle Simulations. Vehicle System Dynamics: Vol. 27, No. sup, pp. Cited by: Abstract A mass‐spring tire model having five degrees of freedom is used to analyze the tangential and radial axial forces that result from a tire hitting a cleat.

The belt and tread region is mode Cited by: Tyre models for shimmy analysis: from linear to nonlinear.

Description Synthesis of functional models for tyre vibration analysis EPUB

Ph.D. thesis, Eindhoven University of Technology, Eindhoven, the Netherlands. A catalogue record is available from the Eindhoven University of Technology by: 2. A comprehensive explanation for this phenomenon is needed for better understanding of tire dynamics and hence building the dynamic tire models.

In this paper, the relationship between the tire static stiffness and the tire radial vibration modes is investigated using the bushing analogy tire (BAT) modeling by: 6. Tyre/road interaction is recognised as the main source of interior and exterior noise for velocities over the 40 km/h. In this paper, a three-dimensional (3D) elemental approach has been adopted to predict the stochastic tyre vibration and hence the.

Details Synthesis of functional models for tyre vibration analysis EPUB

The whole model allows to obtain the road–tyre interactions so it can be used in vehicle dynamic simulations. The model has been named M.H.A., acronym of ‘PHysical ANalytical TYre Model for Handling Analysis’ and it includes the normal, longitudinal and lateral tyre–road interaction.

Multibody dynamics and tyre models have made possible detailed analysis not only for ride and handling, but also for determining their effects on tyre nonuniformities. The aim of this paper is to analyse the steering wheel vibration, both shimmy and shake, excited by different tyre imperfections by using the commercial simulation package ADAMS.

Hans B. Pacejka, in Tire and Vehicle Dynamics (Third Edition), Semi-Non-Linear Model. For the extension of the linear theory to cover the non-linear range of the slip characteristics, it may be tempting to employ Eqn () and use the instantaneous nonlinear force response as input in the differential equation.

The input steady-state side force is calculated, e.g. with the Magic. A simulation methodology for tire/road vibration noise analysis. show that the functional model and the hybrid algorithms proposed provide a very accurate identification compared to other.

The three‐dimensional free vibration and harmonic/randomly forced vibrations with ground contact of the tire model were studied here. One of the main purposes for the present study is to provide a new approach toward tire and vehicle NVH studies.

Abstract. Vibration properties are fundamental properties of tires related to riding comfort and tire noise.

The noise, vibration and ride harshness (NVH) of a vehicle are classified according to the riding comfort at a low frequency below 50 Hz and the interior noise in wide frequency range from 20 Hz to. Book Reviews. Tyre Models for Vehicle Dynamics Analysis.

Pacejka, Editor, H. Pacejka, Editor Search for other works by this author on: Suspension Synthesis for N:1 Roll Center Motion. Mech. Des (July,) Dynamic-Deflection Tire Modeling for Low-Speed Vehicle Lateral Dynamics. Sandberg, J. Ejsmont, Tyre/Road Noise Reference Book - P.

Sabiniarz and W. Kropp. A waveguide finite element aided analysis of the wave field on a stationary tyre, not in contact with the ground - G. Koners and R. Lehmann,Investigation of tire road noise with special consideration of airborne noise transmission -   The vibration in tyres submitted to random forces in the contact zone is investigated with the model of prestressed orthotropic plate on visco-elastic foundation.

It is shown that beyond a cut-on frequency a single wave propagates whose speed is directional-dependent. Tire cavity resonance induced cabin noise has been a major unsolved customer complaint issue for a long time. This chapter explores the tire cavity noise by means of analytical, finite element, and experimental methods.

The acoustic response inside tire cavity is described as the source of the structure-born noise found in vehicle cabin. showed a tire vibration am-plitude of 22 mg at 70 mph. The tool’s sensor was placed on the seat track vertically. Based on this information, the tires were moved from front to back on the same side.

This put the high-est RFV numbers on the MarchVol No. 5 Vibration Analysis, Part 1: Tires Tire vibration amplitude of 22 mg at. Since road roughness is an important source of vehicle vibration, a system model for NVH analysis requires a tire model which accurately predicts spindle response to road input.

Most tire models currently used in the auto industry do not meet this requirement, because they are based on static stiffn. The displacement functions of the model are assumed to be uncoupled in radial and transverse directions.

Matsubara et al. [7] presented the tire lateral vibration utilizing a 3D ring-based model. The vibration in tyres submitted to random forces in the contact zone is investigated with the model of prestressed orthotropic plate on visco-elastic foundation.

Physical tyre models, requirements Performance of different physical tyre models The Brush model Displacements in terms of slip and position. Adhesion and sliding Shear forces Aligning torque and pneumatic trail Tyre characteristics according to the brush mode. Tyre First Vibration Mode (Fig.2). Fig.

2: Tyre First Vibration Mode Even if standard handling manoeuvres usually involve quite low frequencies, such a limitation might become excessive in case of uneven road or very high frequency handling phenomena: moreover, a more sophisticated representation of the longitudinal dynamics (in particular.

Book PDF Available. Equipment was allowed to run until a functional failure occurred. Vibration analysis can also detect misalignment and unbalance be fore these. The paper deals with the measurement, identification and modelling of vibration damping in heavy vehicle tyres.

Recent developments in vibration analysis are applied in order to extend the damping. This paper presents an experimental analysis of the velocity response of a treadless tire in the two‐dimensional wave‐number domain.

The out‐of‐plane velocity response was measured on a stationary tire using a Doppler laser vibrometer for a two‐dimensional 2‐cm by 2‐cm grid of points over the frequency band from 70 to Hz.

From the data, three distinct regions of behavior can. (). Tyre tread-block friction: modelling, simulation and experimental validation. Vehicle System Dynamics: Vol. 51, State of the Art Papers of. The CD-ROM also has more examples of models and some animations of models responding to stress.

Computer modeling can be used to determine stress, strain, deflection, mass, moment of inertia, vibration mode shapes, fluid flow, temperature distributions, electrical and magnetic characteristics, and.

Download Synthesis of functional models for tyre vibration analysis PDF

Modal synthesis continues to develop, with newer research directions focussing on the problem of interaction with nonlinear point excitation mechanisms. Modal synthesis techniques will be discussed at various points in this book, in a general way towards the end of this chapter, and in full technical detail in Chapters 6 and vibration response amplitude peak between Hz is related to the tyre cavity resonance noise.

Keywords: Tyre cavity, resonance, modal analysis, tyre noise 1. INTRODUCTION Most of vehicle noise comes from engine, wind and tyre. At present, advance NVH technology could eliminate engine noise and reduce its transmission to the cabin.

new modeling and simultaneously providing better contact handling and vibration response. Keywords: Finite – elements, vehicle model, tire model, contact handling, dynamic simulation.

1 INTRODUCTION Vibration response analysis of vehicle is an actual problem in many branches of research. For military vehicles the safety and comfort of operting. A Simulation Methodology for Tire/Road Vibration Noise analysis Yintao Wei, Xijin Feng, Dabing Xiang, Yalong Chen To model the tire vibration-acoustics, one need to model tire vibration response rolling on random road surface.

However, methods of analyzing and simulating rolling noise are far from perfect, and there is.Experimental modal analysis, dynamic modeling and parameter identification is employed to investigate the in-plane vibration modal characteristic of a heavy-loaded radial tire with a larger flat ratio.

In-plane vibration characteristic of heavy-loaded radial tire is modeled as flexible beam on modified elastic foundation model and flexible tread and distributed sidewall are respectively.cle weight to the suspension model and determine deformation due to the dead weight (static analysis).

In this example, this stage consists of nonlin-ear analysis involving contact between leaf springs in addition to tire model-ing as previously described.

Next, per-form eigenvalue analysis using the same model (modal analysis). All the.