Durability of automotive jounce bumper

Samad, Muhammed Siddik Abdul; Ali, Aidy; Sidhu, R. S.

doi:10.1016/j.matdes.2010.08.017

Cited by 15 publications

(8 citation statements)

References 17 publications

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“…Due to the hyperelasticity of material and large deformation, the FEA of PU jounce bumper is complex. Sidhu et al [6][7][8][9] applied FEA to predict the fatigue life of a rubber jounce bumper, and this estimate agreed well with the experiment results. Ç alis¸kan et al 10 analyzed a PU jounce bumper using a foam model, which was proven to be reliable, but homogeneous PU distribution was assumed.…”

Section: Introductionsupporting

confidence: 53%

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Finite element analysis of a jounce bumper with negative Poisson’s ratio structure

Wang

et al. 2017

Proceedings of the Institution of Mechanical Engineers, Part C:

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Jounce bumpers in automotive suspension are key components that can improve the noise, vibration, and harshness performance of entire vehicle. Traditional jounce bumper made of polyurethane usually cannot satisfy the mechanical performances required by noise, vibration, and harshness optimization. In addition, the application of hyperelastic material influenced the efficiency and reliability of numerical calculations of polyurethane jounce bumper. In this paper, an engineering negative Poisson’s ratio structure was introduced and applied on the jounce bumper. The negative Poisson’s ratio jounce bumper can be mainly defined by few structure parameters. The finite element analysis of the negative Poisson’s ratio jounce bumper was conducted applied explicit method. The influences of loading velocity and material densities on computational time and numerical results were researched. The results indicated that enlargements of material densities and loading velocity can improve the computational efficiency and have limited influence on reliability. Furthermore, a negative Poisson’s ratio jounce bumper prototype was manufactured and tested to verify the numerical results. It was proved that the finite element analysis of the negative Poisson’s ratio jounce bumper was reliable both in load–displacement curve and deformation shapes. Compared to the traditional jounce bumper, the negative Poisson’s ratio jounce bumper can achieve similar mechanical behavior but with a smoother load–displacement curve, which is beneficial to the vehicle’s noise, vibration, and harshness performance.

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Section: Introductionsupporting

confidence: 53%

“…Sidhu et al. 6–9 applied FEA to predict the fatigue life of a rubber jounce bumper, and this estimate agreed well with the experiment results. Çalişkan et al.…”

Section: Introductionmentioning

confidence: 61%

Finite element analysis of a jounce bumper with negative Poisson’s ratio structure

Wang

et al. 2017

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…Then it is allow the air flow inside the chamber. The fatigue prediction is compared with the literature survey of life time of natural rubber and SBR under strain controlled [2].…”

Section: Experimental Analysis and Resultsmentioning

confidence: 99%

Research on Design and Method to Predict Fatigue Life of an Anti-Vibration Mount

2019

ijeat

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In Industry almost all the machinery are subjected to noise, shocks and vibrations when machines are working. These vibrations leads to more frequent repairs and replacements of machine parts also reduce their life span. Antivibration mount is used as a Vibration Control Solutions for machineries. This work is more focused on the importance of anti-vibration mount, which can be used for various mechanical system. This study includes the design of mounts for various functional requirements and fatigue life prediction methods. There are several approaches to predict the fatigue life of mount. Initially, different types of failures in anti-vibration mounts are discussed in detail. Analytical method, Finite Element Method and Experimental approach to predict the fatigue life are analyzed. The strain life approach is considered, incorporate with material properties of mount and another approaches were discussed that are harmonic response, crack nucleation and crack growth mechanics. It is conclude with, the strain life approach is convenient method to predict the fatigue life of antivibration mount, because it give highly non-linear effect to find the critical region of mount

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“…Verron [2] proposed a criterion using the minimum configurational stress, and this concept was adopted by le Cam et al [3] to evaluate fatigue damage. Luo and coworkers [4,5] developed the effect stress idea, and several researchers applied it to a number of industrial products [6][7][8][9]. Saintier et al [10] employed the equivalent stress to calculate fatigue damage.…”

Section: Introductionmentioning

confidence: 99%

Effective strain criterion under multimode and multiaxial loadings – A rubber S–N curve with the scatter-band factor of 1.6 from 90 fatigue cases

Luo¹

2022

Express Polym. Lett.

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The effective strain criterion, unifying multimode and multiaxial loadings to a single parameter and being expressed in analytical form with no need to rotate a plane to search the maximum damage parameter, is proposed for the fatigue design of anti-vibration components. The validation procedure was performed on 90 cases in two aspects: fatigue damage and crack orientation. All predicted fatigue cracks were located at the places where the effective strain reached its maximum and was consistent with the experimental observations. The failure planes predicted correlated with the experimental measurement. The S-N curve covered over 10 2 to 2.4•10 6 cycles and achieved high accuracy with the scatter-band of 1.8. The proposed approach was applied to two non-proportional loading cases (one in a phase angle 45° and the other in a phase angle 90°). The results seemed to indicate the suitability of the approach for the non-proportional loading calculations. It would be possible to combine the proposed approach with the critical plane method in non-proportional loadings: using the proposed approach to find the critical loading range and then using the critical plane method to determine the maximum values of the required damage variables. Both the proposed concept and the obtained S-N curve would be beneficial in rubber fatigue design. More engineering cases may be needed to verify this approach further.

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Durability of automotive jounce bumper

Cited by 15 publications

References 17 publications

Finite element analysis of a jounce bumper with negative Poisson’s ratio structure

Finite element analysis of a jounce bumper with negative Poisson’s ratio structure

Research on Design and Method to Predict Fatigue Life of an Anti-Vibration Mount

Effective strain criterion under multimode and multiaxial loadings – A rubber S–N curve with the scatter-band factor of 1.6 from 90 fatigue cases

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