Numerical assessment of fore-and-aft suspension performance to reduce whole-body vibration of wheel loader drivers

Fleury, Gérard; Mistrot, P.

doi:10.1016/j.jsv.2006.06.034

Cited by 23 publications

(12 citation statements)

References 2 publications

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“…As already noted, there are only a small number of references dealing with x-direction vibrations and seat with seat back influence (albeit mostly with rigid seat back influence)-to the authors' knowledge (Fairley and Griffin, 1990;Nawayseh and Griffin, 2005b;Mandapuram et al, 2005;Fleury, 2004;Fleury and Mistrot, 2006;Mansfield and Maeda, 2005). Most of the hitherto published measurements were concerned with a human body sitting on a rigid platform without a back support.…”

Section: Comparison Of Obtained Results With Literature Sourcesmentioning

confidence: 99%

“…The modelling of the human body in the backward inclined automobile posture is widely treated too (White et al, 1999;Nishiyama et al, 2000;Rakheja et al, 2005). Fleury and Mistrot (2006) describe a x-direction human body model using rotary and translatory mechano-mathematical elements used for prediction of x-direction vibration suppression by a driver's seat equipped with a fore-and-aft suspension system. Here another approach will be followed: the rather complex problem will be simplified a little to arrive at a simple mechanomathematical model, which would still reflect the main problem features and would eventually enable indicative prediction of driver's seat performance in the x-direction.…”

Section: Description Of Apparent Massmentioning

confidence: 99%

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Measurement and modelling of x-direction apparent mass of the seated human body–cushioned seat system

Stein

Múčka

Chmúrny

et al. 2007

Journal of Biomechanics

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Section: Comparison Of Obtained Results With Literature Sourcesmentioning

confidence: 99%

Section: Description Of Apparent Massmentioning

confidence: 99%

Measurement and modelling of x-direction apparent mass of the seated human body–cushioned seat system

Stein

Múčka

Chmúrny

et al. 2007

Journal of Biomechanics

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“…However, an application of the Pareto-optimal approach has been used for selecting dynamic characteristics of seat suspension systems, and it has been employed only for improving vertical whole body vibration isolation. The research presented in the papers [15][16][17] clearly shows that the horizontal seat suspensions are ineffective in many cases. Although they provide energy dissipation at the sufficiently high frequencies, the low-frequency vibrations are amplified due to the resonance effect.…”

Section: Introductionmentioning

confidence: 99%

Shaping the vibro-isolation properties of horizontal seat suspension

Maciejewski

Krzyżyński

Meyer³

et al. 2017

Journal of Low Frequency Noise, Vibration and Active Control

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In this paper, an effective procedure of shaping the vibro-isolation properties of seat suspension system is presented. The simulation model is created to determine the dependence of evaluation criteria to the design parameters by means of which the system characteristics are formed. The developed optimisation procedure allows to find Pareto-optimal system configuration for the conflicted vibro-isolating criteria, i.e. the frequency weighted transmissibility factor used to evaluate dynamic seat comfort based on acceleration signals and the suspension travel. In order to optimise both the conflicted vibro-isolation criteria, a minimising of the transmissibility factor (primary criterion) is proposed taking into account the suspension travel that is transferred to a non-linear inequality constraint. The correctness of proposed procedure is evaluated using experimental research of the best solution of horizontal seat suspension. This research is performed using the passive system with optimal visco-elastic characteristics, which are selected especially for the welldefined input vibration. The satisfactory agreement of experimental and numerical results is obtained for the analysed vibration reduction system.

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“…Suspension configuration and optimization is a focus for many research and development groups around the world. Most of the studies are based on a simplified model of dynamic response, 15–19 but this methodology does not represent the real behaviour of the car. Some efforts have been applied to developing multi-body systems simulation software, such as ADAMS, for example, 20,21 for mechanical model characterization.…”

Section: Introductionmentioning

confidence: 99%

Racing car chassis optimization using the finite element method, multi-body dynamic simulation and data acquisition

Luque

Mántaras

Pello

2012

Proceedings of the Institution of Mechanical Engineers, Part P:

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This paper presents an optimization methodology applicable to racing car chassis. The proposed procedure is sequentially structured, and starts with analysis of an existing vehicle, goes through an intermediate prototype and finishes with a final design. It is applied to a real case, the redesign of a steel tubular chassis for the 'Copa de España de vehículos CM', as part of a full vehicle development. The dynamic response of the existing chassis is modelled using finite element application techniques for structural design and validated with lab tests. In this way, through various modifications using basic static load cases for primary optimization, a completely new design (intermediate) is defined. Then a prototype is built, instrumented and tested in real field conditions (road and circuit). With acquired data from the dynamic behaviour of the car (suspension, steering, engine and transmission, etc.), using multi-body dynamic simulation software, an optimized load case is put forward in order to refine the first prototype. The ultimate goal is a chassis with much increased torsional and bending stiffness, with minimum weight gain, with regard to its interaction with the suspension and steering systems and to the manufacturing feasibility. It is shown that, with an adequate chassis elements configuration, stiffness can be increased by a 300% with just a 5% weight gain. The proposed methodology can be extended to other design (or re-engineering) procedures with rigid limitations in time and resources.

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Numerical assessment of fore-and-aft suspension performance to reduce whole-body vibration of wheel loader drivers

Cited by 23 publications

References 2 publications

Measurement and modelling of x-direction apparent mass of the seated human body–cushioned seat system

Measurement and modelling of x-direction apparent mass of the seated human body–cushioned seat system

Shaping the vibro-isolation properties of horizontal seat suspension

Racing car chassis optimization using the finite element method, multi-body dynamic simulation and data acquisition

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