Techniques: Experimental Modal Analysis of Tires

Dihua, Guan; Yam, L.H.; Mignolet, Marc P.; Liy, YE

doi:10.1111/j.1747-1567.2000.tb01348.x

Cited by 18 publications

(20 citation statements)

References 2 publications

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“…Slade and Tinker [9] explained the modal analysis for different configurations of a flexible cantilever beam. Guan et al [10] presented a technique for performing EMA of tires. Zhang et al [11] analysed the effect of stretch rate, and velocity of flow on the damping ratio of a rubber tube.…”

Section: Introductionmentioning

confidence: 99%

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Dynamic Testing of a Pre-stretched Flexible Tube for Identifying the Factors Affecting Modal Parameter Estimation

Unnikrishnan¹,

Rajan²,

Raghunathan³

et al. 2016

J. Inst. Eng. India Ser. C

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Experimental modal analysis is the primary tool for obtaining the fundamental dynamic characteristics like natural frequency, mode shape and modal damping ratio that determine the behaviour of any structure under dynamic loading conditions. This paper discusses about a carefully designed experimental method for calculating the dynamic characteristics of a pre-stretched horizontal flexible tube made of polyurethane material. The factors that affect the modal parameter estimation like the application time of shaker excitation, pause time between successive excitation cycles, averaging and windowing of measured signal, as well as the precautions to be taken during the experiment are explained in detail. The modal parameter estimation is done using MEscopeVESTM software. A finite element based pre-stressed modal analysis of the flexible tube is also done using ANSYS ver.14.0 software. The experimental and analytical results agreed well. The proposed experimental methodology may be extended for carrying out the modal analysis of many flexible structures like inflatables, tires and membranes.

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Section: Introductionmentioning

confidence: 99%

“…Though the references [6][7][8][9][10][11][12] describe the EMA of flexible structures, the case of a stretched horizontal flexible tube is not properly addressed in any of these papers. The present paper details the EMA of a polyurethane tube with 2 % pre-stretch.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Testing of a Pre-stretched Flexible Tube for Identifying the Factors Affecting Modal Parameter Estimation

Unnikrishnan¹,

Rajan²,

Raghunathan³

et al. 2016

J. Inst. Eng. India Ser. C

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“…It makes the assumption that s = jω, the frequency response function system is expressed as Eq. (28).…”

Section: F(s) Is Laplace Transform Of F(t) and X(s) Is Laplace Transmentioning

confidence: 99%

“…Additionally, the operational modal analysis approach is employed to the estimate modal parameters from vibration data. 26,27 Using the EMA, one can obtain the results of the tire vibration characteristics directly, 28 however, there still remain some problems such as high-cost, uncontrollable factor and systematical errors. The FEM modal analysis is another method developed based on the theory modal model in present years, which has the advantage of low-cost, convenient and comprehensive.…”

Section: Introductionmentioning

confidence: 99%

Thermal modal analysis of novel non-pneumatic mechanical elastic wheel based on FEM and EMA

et al. 2018

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A combination of Finite Element Method (FEM) and Experiment Modal Analysis (EMA) have been employed here to characterize the structural dynamic response of mechanical elastic wheel (ME-Wheel) operating under a specific thermal environment. The influence of high thermal condition on the structural dynamic response of ME-Wheel is investigated. The obtained results indicate that the EMA results are in accordance with those obtained using the proposed Finite Element (FE) model, indicting the high reliability of this FE model applied in analyzing the modal of ME-Wheel working under practical thermal environment. It demonstrates that the structural dynamic response of ME-Wheel operating under a specific thermal condition can be predicted and evaluated using the proposed analysis method, which is beneficial for the dynamic optimization design of the wheel structure to avoid tire temperature related vibration failure and improve safety of tire.

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“…Guan et al in [4], in which the structural differences between radial-ply and cross-ply tyres are demonstrated for several inflation pressures. L. H. Yam et al in [5] adopted a more complete approach as they investigated the three-dimensional tire response resulting from radial and tangential excitation forces.…”

Section: Introductionmentioning

confidence: 99%

Efficient experimental identification of three-dimensional tyre structural properties

Tsinias

Mavros

2018

Proceedings of the Institution of Mechanical Engineers, Part D:

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Modal testing is routinely applied to tyres for the identification of structural parameters and prediction of their vibration response to excitations. The present work focuses on the more demanding case of modal testing with the aim of constructing a full mathematical model of a tyre, appropriate for use in a generic time-based simulation. For this purpose, the less common freefree boundary condition is employed for the wheel, while the tyre belt is excited in all three directions, namely radial tangential and lateral. To improve efficiency, a novel partial identification method is developed for the mode shapes, whereby measured and predicted frequency responses are matched around distinct resonance peaks, while eliminating the effect of out-of-band modes. Axial symmetry of the tyre requires high purity mode shapes to avoid angular dependency of the tyre's response. For this reason, experimental mode shapes are digitally filtered and combined with their orthogonal counterparts. Processed data reveals apparent repetition of selected mode shapes and this is attributed to rim deflection.

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Techniques: Experimental Modal Analysis of Tires

Cited by 18 publications

References 2 publications

Dynamic Testing of a Pre-stretched Flexible Tube for Identifying the Factors Affecting Modal Parameter Estimation

Dynamic Testing of a Pre-stretched Flexible Tube for Identifying the Factors Affecting Modal Parameter Estimation

Thermal modal analysis of novel non-pneumatic mechanical elastic wheel based on FEM and EMA

Efficient experimental identification of three-dimensional tyre structural properties

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