Validation of an Accelerated Test on a 4-Post Road Simulator

Awate, Chandrakant; Panse, Suyog M; Dodds, Colin J.

doi:10.4271/2007-26-070

Cited by 9 publications

(5 citation statements)

References 2 publications

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“…A typical automobile prototype is subjected to a variety of vibration profiles that simulate operational conditions in a laboratory environment. According to Dodds and Ward [16] and Awate et al [17] automotive manufacturers utilize accelerated life testing for critical components to meet the life-cycle requirement while reducing the testing cost. This can be accomplished by driving on various road surfaces (proving grounds) similar to those seen in the field.…”

Section: Automotive Applicationsmentioning

confidence: 99%

“…Another approach that automotive manufacturers rely on is the four-post hydraulic shaker. This is a common testing tool for validating vehicle durability [17]. It is a relatively simple and cost effective configuration for performing a complete vehicle vibration evaluation.…”

Section: Automotive Applicationsmentioning

confidence: 99%

“…The dynamic loading produced by the shaker induces stresses on the vehicle and its components. However, using a four-or twelve-hydraulic actuator shaker introduces two major limitations [17,18]. The first limitation is the inability to simulate the effect of rolling tires on the overall stiffness and damping of the suspension system and vehicle structure.…”

Section: Automotive Applicationsmentioning

confidence: 99%

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Review of Response and Damage of Linear and Nonlinear Systems under Multiaxial Vibration

Habtour

Connon

Pohland

et al. 2014

Shock and Vibration

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A review of past and recent developments in multiaxial excitation of linear and nonlinear structures is presented. The objective is to review some of the basic approaches used in the analytical and experimental methods for kinematic and dynamic analysis of flexible mechanical systems, and to identify future directions in this research area. In addition, comparison between uniaxial and multiaxial excitations and their impact on a structure’s life-cycles is provided. The importance of understanding failure mechanisms in complex structures has led to the development of a vast range of theoretical, numerical, and experimental techniques to address complex dynamical effects. Therefore, it is imperative to identify the failure mechanisms of structures through experimental and virtual failure assessment based on correctly identified dynamic loads. For that reason, techniques for mapping the dynamic loads to fatigue were provided. Future research areas in structural dynamics due to multiaxial excitation are identified as (i) effect of dynamic couplings, (ii) modal interaction, (iii) modal identification and experimental methods for flexible structures, and (iv) computational models for large deformation in response to multiaxial excitation.

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Section: Automotive Applicationsmentioning

confidence: 99%

Section: Automotive Applicationsmentioning

confidence: 99%

Section: Automotive Applicationsmentioning

confidence: 99%

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Review of Response and Damage of Linear and Nonlinear Systems under Multiaxial Vibration

Habtour

Connon

Pohland

et al. 2014

Shock and Vibration

View full text Add to dashboard Cite

show abstract

“…For nominal stress spectra with stress ranges above and below the constant amplitude fatigue limit s D , the fatigue strength should be based on the extended fatigue strength curves as follows When m 5 3 and N f ( 5610 6 , the equation is…”

Section: Eurocode 3 [23]mentioning

confidence: 99%

“…In addition, the application of closed-loop servohydraulic testing systems and the road simulation technique has enabled the reproduction of test track responses such as displacement, acceleration, and strain in the laboratory [3][4][5][6]. Simulated laboratory durability testing, test track durability testing, and proving-ground durability testing can be performed simultaneously.…”

Section: Introductionmentioning

confidence: 99%

Accelerated durability assessment of motorcycle components in real-time simulation testing

Lin

Hwang

Chang

2009

Proceedings of the Institution of Mechanical Engineers, Part D:

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The rapid development of the vehicle industry has made reducing product development time a major concern. This study seeks to identify a suitable accelerated approach to durability analysis for motorcycle components. This investigation involves field data acquisition, laboratory road load simulation, accelerated durability testing, and fatigue life prediction. Two methods, 'strain range editing technique' and 'racetrack editing technique', were applied to edit field strain histories for accelerated durability tests. Furthermore, four methods, including the 'S-N approach with fatigue property of base metal', 'Eurocode 3 approach', 'BS 5400 approach', and 'BS 5400 approach with Gurney thickness modification', were employed to assess fatigue life. Three road types and four damage levels were also used. The results demonstrated that the 'BS 5400 approach with Gurney thickness modification' is a suitable method of assessing the durability of welded motorcycle components when the fatigue properties of critical points are not available. Both the 'strain range editing technique' and 'racetrack editing technique' can effectively edit strain histories with the expected quantity of fatigue damage, and demonstrate satisfactory agreement between the experimental data and predicted data.

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Methodology to Derive Reliable Laboratory Tests Using Limited Service Load Data

Awate¹,

Dodds²

2007

SAE Technical Paper Series

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Validation of an Accelerated Test on a 4-Post Road Simulator

Cited by 9 publications

References 2 publications

Review of Response and Damage of Linear and Nonlinear Systems under Multiaxial Vibration

Review of Response and Damage of Linear and Nonlinear Systems under Multiaxial Vibration

Accelerated durability assessment of motorcycle components in real-time simulation testing

Methodology to Derive Reliable Laboratory Tests Using Limited Service Load Data

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