Investigation of the contact force distribution and dynamic behaviour of an automobile windshield wiper blade system

Lee, Seoung Hwan; Kim, Young Heon; Sung, Jisu; Shin, Ki-Hoon; Oh, Je Hoon

doi:10.1177/0954407012474136

Cited by 11 publications

(4 citation statements)

References 15 publications

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“…Compared with the complex calculation of the 2DOFs model in literature, 20 the derivation and solution of the single DOF model proposed in this paper are simpler, can better describe the dynamic characteristics of the wiper reversal process, and more facilitate to add the subsequent friction models. Compared with the three-dimensional FEM analysis in literature, 19,24 the single DOF model, which does not need to consider the complex pre-processing, such as contact pair setting, mesh generation, etc., and the nonlinear convergence problems, is easy to solve and analyze.…”

Section: Wiper Reversal Theoretical Modelmentioning

confidence: 99%

“…To reduce the friction coefficient of blade 21,22 and conduct the active control, [23][24][25][26][27][28] furthermore, some theoretical measures according to the mechanism of vibration and noise of the wiper-windscreen friction system, such as the structure modifications, 16,21,22 the elimination of friction-negative slope characteristic of relative sliding velocity, [22][23][24] were proposed. The attack angle of wiper blade and the pressure of scraper arm are controlled within a certain speed range.…”

Section: Introductionmentioning

confidence: 99%

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A theoretical analysis of friction and vibration characteristics of wiper reversal process

Yang

Wang

Guo

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part D:

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This paper is concerned with the friction and vibration characteristics of a vehicle wiper-windscreen contact. The dynamics and friction models of the wiper-windscreen system are established to study the frictional vibration and noise of the wiper-windscreen system. The dynamic model of the wiper-windscreen system is established and the analytical formulas are derived. Based on the negative slope formula of friction coefficient with respect to relative velocity, the Coulomb’s friction law, and the fluid lubrication characteristics, the friction models of the system are built in dry and wet operating conditions, respectively. Meanwhile, the formulas of friction coefficient and relative velocity in time domain are presented. The changes of blade angle and friction with time in different working conditions are investigated. The Runge-Kutta method is used to analyze the nonlinear dynamic response and friction characteristics of the friction models. The simulations successfully reproduce the vibrations of the wiper blade in actual motion. The effectiveness of the dynamic model and the friction models is verified by comparing the simulation results under different working conditions. The dynamics and friction models presented in this paper can provide theoretical references for structural optimization of the wiper blade, and thereby the vibration and noise control of the wiper-windscreen system.

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Section: Wiper Reversal Theoretical Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A theoretical analysis of friction and vibration characteristics of wiper reversal process

Yang

Wang

Guo

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part D:

View full text Add to dashboard Cite

show abstract

“…In this research study, there is a few approaches have been used, which are review on previous study [3], experimental and analytical method from the data obtain by experiment. In order to measure the force distribution exerted [14] on the wiper blade a Force Sensitive Resistor (FSR) sensor was used and the experiment set up as shown in Figure 1. The vibration data obtain is processed by single-board microcontrollers [15](Arduino UNO).…”

Section: Experimental Set Upmentioning

confidence: 99%

Dynamic Behaviour and Characteristics of Rubber Blade Car Performance

Mohamad

Othman

Sharif

et al. 2019

IJAME

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High technologies have helped so much in improving an optimizing the engine design and performance of the car. Improved isolation has helped to minimize the engine noise making other automotive part noises become more detectable. One of the noise sources are the wipers. When a wiper operates on a windshield, vibratory phenomena may appear due to flutter instabilities and may generate squeal noise. In order to obtain good wiping behaviour and characteristics, the rubber blade should be in complete contact with the glass and under uniform contact pressure while not generating vibration as it moves over the glass. A good wiping performance can be achieved by a proper design of the wiper structure as well as a good understanding of the mechanical behaviour of the rubber blade. The primary objective of this research is to investigate the dynamic behaviour and characteristics of rubber wiper blade performance in order to reduce the automotive windscreen wiper noise and vibration effects. In order to achieve the objective of this research, two types of wiper is used. One is hybrid type and second is conventional type. Then the behavior of wiper can be investigated. The force resistive sensor is used to measure the force distribution exerted on the windshield for the characteristics wiper noise for specific points. The obtain vibration data is processed by single-board microcontrollers. Behaviour movements of blade produce different vibration that can be investigated the maximum noise occurs on wiper blade operation using Uni-axial accelerometer A MMA7660. As a result, confirmation behaviour is shown the contact force distribution between rubber blade and glass is produce non-uniformly contact force and identical for hybrid type wiper and uniform contact force and not identical for conventional type wiper. In addition, characteristic of wiper rubber blade due to environment condition such as humidity, temperature and wiper stiffness are major factor in this research. As a conclusion, the results for behaviour of wiper blade depends on structural effect of the wiper blade related to the contact force distribution between the rubber blade and the glass. Secondly the characteristics of wiper rubber blade depends environment condition such as humidity and the temperature. The methodology is achievable to discovery the knowledge of dynamic behaviour and characteristics of wiper rubber blade in future.

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“…The research conducted into the contact distribution of a wiper blades typically use a finite element analysis (FEA) approach [1,2]. The contact analysis is typically performed using a flat surface and whiffletree style blades.…”

Section: Introductionmentioning

confidence: 99%

Quantitative Multi-Physics Tools for Automotive Wiper Design

Graham¹,

Knowles²,

Mavros³

2023

SAE Technical Paper Series

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<div class="section abstract"><div class="htmlview paragraph">The primary function of automotive windscreen wipers is to remove excess water and debris to secure a clear view for the driver. Their successful operation is imperative to vehicle occupants’ safety. To avoid reliance on experimental testing there is a need to develop physics-based models that can quantify the effects of design-based decisions on automotive wipers. This work presents a suite of evaluative tools that can provide quantitative data on the effects of design decisions. We analyse the complex non-linear contact interaction between the wiper blade and the automotive screen using finite element analysis, assessing the impact of blade geometry on the contact distribution. The influence of the evolution of normal applied load by the wiper arm is also investigated as to how it impacts the contact distribution evolution. The dynamics of the blade are subsequently analysed using a multiple connected mass spring damper system. Additionally, we apply hydrodynamic lubrication theory to study the residual film thickness post wipe and assess the effect of wiper blade geometry and lubricant composition. Finally, the complete wiper system is studied using a lump dynamic model, and bifurcation analysis is applied to determine areas of instability due to friction induced vibrations. Additionally, the wiper dynamics modelling shows peak frequencies occurring at 30-50Hz, which agrees well with a documented range of chatter frequencies. The friction coefficients calculated within the hydrodynamic model fall within experimentally documented ranges of lubricated sliding friction, <i>μ</i> ≈ 0.1. Furthermore, the areas of operational stability predicted by our bifurcation model coincide with current experimentally determined optimal operational regions for automotive wipers.</div></div>

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Investigation of the contact force distribution and dynamic behaviour of an automobile windshield wiper blade system

Cited by 11 publications

References 15 publications

A theoretical analysis of friction and vibration characteristics of wiper reversal process

A theoretical analysis of friction and vibration characteristics of wiper reversal process

Dynamic Behaviour and Characteristics of Rubber Blade Car Performance

Quantitative Multi-Physics Tools for Automotive Wiper Design

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