Abstract
Gear whine noise has attracted increasing attention from researchers in both the academe and the industry over the past two decades. The wide range of research topics demonstrates that there is a huge technical challenge in understanding the source-path-receiver mechanisms deeply and predicting the gear whine noise precisely. Thoroughly understanding the sources of gear whine noise is the first step to solving this issue. In this paper, the authors summarize a certain number of published articles regarding the sources of gear whine noise. The excitations of gear whine noise are classified into three groups: transmission error along the line of action direction, frictional excitations along the off-line of action direction, and shuttling excitation along the axial direction. The mechanisms, characteristics, predicting approaches, measuring methods, and decreasing strategies for these excitations are summarized. Current research characteristics and future research recommendations are presented at the end.
Highlights
With the rapid development of technology in the automotive industry, electric vehicles fiercely shock the automobile market and are expected to occupy the market in a few years. e increasingly intense competition in the vehicle market and the rapid emergence of electric vehicles pose a series of challenges in improving interior acoustic comfort
Gear whine noise, with its pure tonal characteristic and high frequency, can be much more annoying in electric vehicles, where the mask effect of the engine noise is weak. erefore, gear whine noise represents the main concern for acoustic comfort in an electric vehicle. is article focuses mainly on publications related to gear whine noise; limited space does not allow for publications related to gear rattle noise to be included in this paper. e objectives are limited to traditional cylinder involute gears. e objective gears discussed in this survey are restricted to those in parallel gearboxes
Summary. e authors reviewed more than 200 published papers related to the excitations of gear whine noise
Summary
With the rapid development of technology in the automotive industry, electric vehicles fiercely shock the automobile market and are expected to occupy the market in a few years. e increasingly intense competition in the vehicle market and the rapid emergence of electric vehicles pose a series of challenges in improving interior acoustic comfort. Deviations of the real gear profile from the ideal involute one, deflections of teeth under operating conditions, and inevitable misalignments all contribute to periodic displacement, which induces varying meshing forces along the line of action (LOA). During the generation of gear whine noise, excitations of gear meshes act as sources, shafts and bearings as vibration transfer paths, and the gearbox-housing plates as the receiver. Is paper aims to summarize the excitations of gear whine noise from the literature, classify these excitations according to the three action directions of the meshing forces, present methods for predicting these excitations, Publication number.
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