Results 21 to 30 of about 1,026,695 (226)
Friction influence on brake squeal in disc and drum brakes using complex eigenvalue analysis [PDF]
Revista Brasileira de Ensino de FísicaBrake noise, is a complex issue in automotive and industrial systems caused by friction-induced vibrations between the brake pad and disc. This noise impacts vehicle performance, accelerates component wear, and diminishes consumer satisfaction.
Romulo do Nascimento Rodrigues +3 more
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Modelling and Finite Element Analysis of Structural Modifications in Brake Pad and Disc to Suppress Squeal [PDF]
SVU-International Journal of Engineering Sciences and ApplicationsThis paper deals with the problem of squeal noise in disc brakes, which is a major concern for researchers and brake manufacturers. The finite element method and complex eigenvalue analysis are used to explore how changing the shape of the disc and the ...
Mohamed Essam +4 more
doaj +1 more source
A fundamental study of railway train squeal noise [PDF]
The Journal of the Acoustical Society of America, 1978 Railway train squeal noise on a curve of small radius consists of specific frequencies which correspond to the natural frequencies of the axial vibration of a wheel. Those vibrational modes are nodal modes, such as (4,0) or (7,0), and the damping coefficients of a wheel are small in those particular kinds of modes.
M. Yokoi, M. Nakai
openaire +1 more source
Experimental and theoretical investigation of railway wheel squeal [PDF]
, 2007 The tangential contact forces that arise at the interface between the wheel of a railway vehicle and the rail provide all the traction, braking, and guidance required by the vehicle.
Hsu, S.S. +24 more
core +1 more source
Optimization Design of Brake Disc Structure for Brake Squeal Suppression
Jixie chuandong, 2022 Aiming at the problem of brake squeal of automobile disc brake, a method based on weighted brake squeal tendency coefficient is proposed to evaluate the brake squeal performance.
Pan Gongyu +3 more
doaj
The Measurement and Analysis of the Disc/Pad Interface Dynamic Centre of Pressure and its Influence on Brake Noise. [PDF]
, 2008 This paper discusses the measurement of the dynamic centre of pressure (CoP) of a brake pad during a normal braking event using a modified 12-piston opposed calliper. The modifications allow the centre of pressure to be controlled both radially and along
John D. Fieldhouse +5 more
core +1 more source
Performance Analysis of Piezoelectric Actuators in Railway Wheel Squealing Noise Mitigation
Shock and Vibration, 2019 Application of a shunted piezoelectric system in reduction of the squeal noise level in railway wheels is studied. A wheel squeal model including the railway track, wheel, and nonlinear interaction contact forces is taken into account in the time domain.
Seyed Rahim Marjani, Davood Younesian
doaj +1 more source
Energies, 2018 Squeal noise often occurs in a two-stage electrohydraulic servo-valve, which is an unfavorable issue of modern hydraulic energy systems. The root causes of such noise from the servo-valve are still unclear.
Meng Chen +3 more
doaj +1 more source
Effect of Control Measures on Wheel/Rail Noise When the Vehicle Curves
Applied Sciences, 2017 This paper developed a time domain simplified model to study the effect of control measures on wheel/rail noise when the vehicle curves. The time domain model consists of two parts, one being a vehicle-track coupling dynamic model for wheel/rail ...
Jian Han +5 more
doaj +1 more source
Anatomical Sciences Education, EarlyView.Abstract Human dissection is a foundational component of medical education, yet it places students in profound ethical tension between scientific objectification and respect for human dignity. While prior studies have documented students' emotional responses, the structural transformation of their moral narratives over time, particularly within non ...
Jun‐Ki Lee +2 more
wiley +1 more source