نتایج جستجو برای: brake disk

تعداد نتایج: 61741  

2010

Rear-end collisions and distraction are major concerns in automotive transportation. This study investigated the conspicuity of current rear automobile lighting (red brake and red tail lamps) compared to a proposed arrangement (red brake lamps with yellow tail lamps) in a task where participants only had time to perform one saccade and fixation (200ms) to identify the presence or absence of bra...

Journal: :J. Adv. Inf. Fusion 2006
Reza Hoseinnezhad Alireza Bab-Hadiashar

Brake-by-wire is a frontier technology that will allow many braking functions to switch to electronic actuation. Its deployment will lead to more effective and safe braking systems, elimination of hydraulic technology, release of space and reduction of maintenance. Design and implementation of brake-by-wire systems has recently attracted interest from researchers in automotive and control engin...

Journal: :The Review of scientific instruments 2007
R E Scholten

Rotary voice-coil motors from computer hard disk drives make excellent mechanical shutters for light beams. However, the complexity of the necessary electronic driving circuit can hinder their application. A new design is presented here, using a single integrated circuit originally intended for controlling dc motors. A digital input signal switches a unipolar power supply bidirectionally throug...

Journal: :JCP 2012
Hairong Gu Yongqi Wang Changming Li

Reducing start and stop time without destroying the pavement surface is important in enhancing productivity of double-drum roller and compact quality of asphalt pavement, but it is difficult in confirming the maximum brake deceleration or start acceleration of double-drum roller. Dynamic analysis is used in studying these questions, and a mathematic model of double-drum roller is established, b...

2010
Michael KÜHNLEIN Matthias LIERMANN Hubertus MURRENHOFF

The unique concept of the Self-energising Electro-Hydraulic Brake (SEHB) uses the vehicles kinetic energy as independent brake booster by the principle of self-energisation. This paper presents a new approach for controller synthesis of SEHB using the method of input-output linearisation on basis of a complexity reduced model. Once the control design is achieved, the developed controller is ver...

2009
Xiangpeng Yu Gangyan Li

There are several kinds of metrics should be handled by the brake system of hybrid electric vehicles such as fuel economy, performance and safety. The optimal control of the HEV brake system will be solved by a modelbased approach. Based on the developed vehicle model, a two phase approach is proposed for the coordinated control of the HEV brake system. A high level sliding mode controller is a...

Journal: :Collection of scientific works of the State University of Infrastructure and Technologies series "Transport Systems and Technologies" 2019

2015
Gábor Fekete Károly Váradi

The paper includes the second part of an investigation of the braking process of railway vehicles, dealing with the temperature distribution of a brake block in various load cases and the FE analysis of the phenomenon of thermal elastic deformation. Thermal expansion calculations pointed out to the fact that in case of the contact area, the radius of the operating surface of the brake block inc...

Journal: :Archive of Applied Mechanics 2021

Abstract Brake noise, in particular brake squeal, is a permanent topic both industry and academia since decades. Nonlinearities play decisive role for this phenomenon. One nonlinear effect widely ignored so far that the can engage multiple equilibrium positions with severe consequences on noise behavior. In fact an automotive disk brake, essential elements carrier, caliper pad are elastically c...

Journal: :iranian journal of neuro surgery 0
guive sharifi associate professor, shahid beheshti university of medical sciences, loghman hakim hospital, tehran, iran ehsan alimohammadi * corresponding author address: shahid beheshti university of medical sciences, loghman hakim hospital, velenjak st., shahid chamran highway, tehran, iran. tel: +982155419005. e-mail: [email protected] kaveh ebrahimzadeh assistant professor of neurosurgery, shahid beheshti university of medical sciences, loghman hakim hospital, tehran, iran karim moradian resident of neurosurgery, shahid beheshti university of medical sciences, loghman hakim hospital, tehran, iran omidvar rezaei professor of neurosurgery, shahid beheshti university of medical sciences, loghman hakim hospital, tehran, iran

background and importance: disk sequestration can be defined as a herniated disk with perforation of the fibrous ring (or outermost annulus fibrosus) and posterior longitudinal ligament with migration of the disk fragment to the epidural space. even after the introduction of high-resolution magnetic resonance imaging (mri), it is still frequently misinterpreted as neoplastic masses. unfortunate...

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