Abstract
Rubber bushings and mounts are vastly used in automotive applications as support and interface elements. In suspension systems, they are commonly employed to interconnect the damping structure to the chassis. Therein, the viscoelastic nature of the material introduces a desirable filtering effect to reduce mechanical vibrations. When designing a suspension system, available literature often deals with viscoelastic mounts by introducing a linear or nonlinear stiffness behavior. In this context, the present paper aims at representing the rubber material using a proper viscoelastic model with the selection of different in-wheels motors. Thus, the mount dynamic behavior’s influence in a suspension is studied and discussed thoroughly through numerical simulations and sensitivity analyses. Furthermore, guidelines are proposed to orient the designer when selecting these elements.
Highlights
Bushings and mounts are compliant elements that find their application in engineering solutions as noise and vibration absorbers
Bushings may be seen as support or secondary components in machinery, they are critical in guaranteeing a favorable dynamic response in these systems
This research implements a proper bushing material model identified from experimental characterizations. With this solid model at the base, we study the impact of in-wheel motor mass and the role of the bushing in the Materials 2021, 14, 3356
Summary
Bushings and mounts are compliant elements that find their application in engineering solutions as noise and vibration absorbers. They are made of flexible materials, such as rubber. Bushings guarantee stability by supporting subsystems, such as the internal combustion engine and the vehicle suspension links In the latter instance, rubber elements can influence the vertical dynamics of the chassis and the unsprung masses. Liu et al [8] developed a dynamic vibration damper that can be used for both inner rotor and outer rotor motors It was controlled by fuzzy logic, which shows better performance in the suspension system and greater comfort. 7 the interconnection points in the2.v3i.s1c. oReolaadstPicrobfirlaenches of the rubber elements (z2,1, z3,1)
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