Design and Fabrication a Lightweight Spring Made of Natural Rubber  for a Motorcycle’s Shock Absorber

Mann, Vicky; Dechwayukul, Charoenyut; Thongruang, Wiriya; Srewaradachpisal, Satta; Kaewpradit, Pornsiri; Apichai, W. Kaew; Bui, H-T.

doi:10.15282/ijame.17.1.2020.22.0577

Cited by 3 publications

(2 citation statements)

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“…This method is particularly useful at the initial stage of a motorcycle or other vehicle because it allows the selection of parameters of the real system and to study the vibrations that arise. However, in the final stage of design and modeling of individual parts, the finite element method can be used, as presented in [32], on the design of an elastic component for a motorcycle.…”

Section: Methods and Tools Usedmentioning

confidence: 99%

Analysis of the Effect of Mass Parameters on Motorcycle Vibration and Stability

Dębowski

2021

Energies

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This paper presents a vibration analysis method and an example of its application to evaluate the influence of mass parameters on torsional vibration frequencies in the steering system of a motorcycle. The purpose of this paper is to analyze to what extent vibration frequencies can change during their daily operation. These changes are largely due to the ratio of vehicle weight to driver and load. The complex dynamics make it very difficult to conduct research using simple models. It is difficult to observe the influence of individual parameters because they are strongly interrelated. This paper provides a description of the vibration analysis method, and the results are presented in the form of Bode diagrams and tables. On this basis, it was found that the driver, deciding on the way of using the vehicle and introducing modifications in it, influences the resonant frequencies of the steering system. Typical exploitation factors, on the other hand, do not cause significant changes, although they may contribute to increasing the sensitivity of the system to vibrations. The conducted analysis also showed some nonlinear changes in the dynamics of the system with linear changes of the parameter values.

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Section: Methods and Tools Usedmentioning

confidence: 99%

Analysis of the Effect of Mass Parameters on Motorcycle Vibration and Stability

Dębowski

2021

Energies

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“…up to 10%), the best mapping is given by the Neo-Hookean model; in the range of strain from 10% to 300%, the Mooney-Rivlin model is recommended. The Yeoh model is usually chosen for large strain values in elastomers (up to 700%) [24], [25].…”

Section: Introductionmentioning

confidence: 99%

The Influence of Non-Pneumatic Tyre Structure on its Operational Properties

Hryciów¹,

Jackowski²,

Żmuda³

2020

IJAME

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A non-pneumatic tyre (NPT) is a novel type of safety tyre that is designed to provide similar elastic properties to those offered by conventional pneumatic tyres. The main advantage of NPT is the lack of compressed air (like in a pneumatic tire) to ensure adequate traction forces and directional control. Suitable materials and the appropriate geometry of the supporting structure allows to achieve properties provides by pneumatic tires. Flexible spokes and closed structure like honeycomb are the most common solutions of supporting structure. Appropriate geometry, thickness and materials of this part affect the NPT properties; radial stiffness, unit pressure in the contact patch and the parameters of an area in contact with a non-deformable surface. The paper presents the FEM NPT model (NPT_0), which was validated with the results of experimental research of NPT. The NPT_0 model is subject to further modifications (layout and shape of the radial spokes) was used in the study. Seven new geometries of NPT supporting structure were selected for simulation tests. During the numerical tests the radial stiffness, unit pressure in the contact patch and the parameters of an area in contact with a non-deformable surface were determined. It has been observed that an increase in the curvature of the spokes reduced radial stiffness and increased the length of the contact path.

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