Dynamic characteristics and generation mechanism of windscreen frameless wiper blade oscillations

Li, Yunyuan; Xu, Jun

doi:10.1007/s11071-022-08030-0

Cited by 2 publications

(4 citation statements)

References 43 publications

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“…Our results of the distribution of pressure on stresses testify to the solution of the problem of studying the interaction of the windshield wiper with the curved surface of the glass. In contrast to [2][3][4][5][6][7][8][9][10], in which variants of the absolute repeatability of the curvature of the windshield wiper and the glass surface are considered, the current research data demonstrate the application of other possible cases of operation.…”

Section: Results Of the Analysis Of The Hydrodynamic Contact Of A Dou...mentioning

confidence: 75%

“…The reviewed literature [2][3][4][5][6][7][8][9][10][15][16][17][18][19][20][21][22][23] does not sufficiently describe other variants of rubber blades, except for the traditional single-row one. A variant of the rubber blade with an additional row of individual brushes located at an angle has shown useful practical results.…”

Section: Results Of the Analysis Of The Hydrodynamic Contact Of A Dou...mentioning

confidence: 99%

“…Despite the relevance of the topics addressed in [4][5][6], the authors do not provide data on the resulting pressure on the glass surface from the side of the windshield wiper. In [7], the dynamic characteristics and mechanism of generating vibrations of a frameless windshield wiper are studied. A wiper prediction scheme is proposed using a sectional linkage model to estimate vibrations caused by frameless structures and provides a detailed analysis of nonlinear dynamics.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…The aim is to provide a theoretical basis for the structural optimization of rubber blades. The authors of [7,8] do not provide the results of a comparison of traditional and frameless windshield wipers, which is especially valuable from the point of view of friction and vibrations. In [9], the dynamics of wiper blades on a curved windshield were analyzed and attention was focused on such a parameter as the angle of attack, which contributes to the development of the problem of jumps.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

See 3 more Smart Citations

Determining the characteristics of contact interaction between the two-row windshield wiper and a curvilinear glass surface

Holenko,

Dykha,

Voichyshyn

et al. 2024

EEJET

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Among the evaluation criteria for determining the efficiency of vehicle windshield cleaning, the pressure distribution of the wiper rubber brush on the glass surface is important. The problem is the lack of this indicator standardization by the United Nations Economic Commission for Europe Rules (UNECE) regarding the windshield wipers certification. The inhomogeneity of the pressure distribution of the conventional wiper (the object of research) is additionally due to the mobility of the links of its mechanism and the plasticity of the rubber brush together with the blade. The pressure value should not be more than 30–50 kPa (33.4 kPa was recorded for the immobilized wiper case), and the external normal load on the frame should be kept within 20...30 N. Under a load of 24 N, the wiper blade was deformed by 1.48 mm (according to R43, it cannot exceed 1.5 mm). Further loading of the wiper frame causes two types of plastic deformation: local and global (loss of the rubber brush shape). Local displacements have increased to 1.82 mm, and the shape of the blade has acquired a "sliced" character, which causes thin jets of dirt. Global ones led to the rubber brush bending with the gap between it and the glass (5.7 mm) and caused the blind zone appearance. Models to mathematically predict layer-by-layer deformations of a conventional wiper were investigated. A model of a double-row blade with separate brushes was built, which enables the parallelization of water flows and explains the increase in the efficiency of its design. Hydrodynamic tests showed 1.58 times greater effectiveness compared to a classic single-row blade: the water flow rate was 15.61 vs 9.86 m/s. This technological advancement is the subject of a patent and a possible working prototype

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Section: Results Of the Analysis Of The Hydrodynamic Contact Of A Dou...mentioning

confidence: 75%

Section: Results Of the Analysis Of The Hydrodynamic Contact Of A Dou...mentioning

confidence: 99%

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Section: Literature Review and Problem Statementmentioning

confidence: 99%

See 2 more Smart Citations

Determining the characteristics of contact interaction between the two-row windshield wiper and a curvilinear glass surface

Holenko,

Dykha,

Voichyshyn

et al. 2024

EEJET

View full text Add to dashboard Cite

show abstract

Controlling windscreen wiper vibration through yaw angle adjustments: a study of dynamic contact behavior using fluorescence observation

Tadokoro,

Kobayashi,

Sueda

et al. 2024

Front. Mech. Eng.

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Friction-induced vibration in the wiper system of passenger cars not only causes impaired visibility as a result of uneven water film distribution on the windscreen surface, but also leads to noise problems by transmitting vibrations as sound to the passengers. In this study, a novel experimental apparatus was developed to simulate the wiper system, enabling the change in normal support stiffness and the precise adjustment of the yaw angles of a shortened rubber blade and its flexible base relative to the drive direction of a glass plate. The use of fluorescence observation provided a significant advantage, enabling precise measurements of the position of the rubber blade tip and the water film thickness in the contact area of the rubber blade and the glass plate during operation. In conjunction with this, an accelerometer and a gap sensor were employed to measure the normal and tangential motions of the support structures, respectively. This comprehensive setup allows for precise control of blade support conditions, and provides accurate measurement for motions of rubber blade and support structures, making it a powerful tool for investigating friction-induced vibration in the wiper system. The experimental results clearly demonstrated the effectiveness of applying large yaw angles to both the rubber blade and the flexible base in suppressing friction-induced vibration, resulting in smooth motion at any drive speed. These findings have the potential to improve wiper performances under actual operating conditions.

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Dynamic characteristics and generation mechanism of windscreen frameless wiper blade oscillations

Cited by 2 publications

References 43 publications

Determining the characteristics of contact interaction between the two-row windshield wiper and a curvilinear glass surface

Determining the characteristics of contact interaction between the two-row windshield wiper and a curvilinear glass surface

Controlling windscreen wiper vibration through yaw angle adjustments: a study of dynamic contact behavior using fluorescence observation

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