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Design of an innovative car braking system using eddy currentsCruz, David Jose Torres. 10 April 2008 (has links)
No description available.
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Design of a magnetorheological brake systemFalcão da Luz, Luís. 10 April 2008 (has links)
No description available.
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Experimental investigation of dither control for the suppression of automotive brake squealDzirasa, Mawuli 05 1900 (has links)
No description available.
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An Experimental Investigation of Proportional BrakingLimpert, Rudolf 01 August 1968 (has links)
In recent years automobile safety has become more and more important.The braking device contributes largely to the problem of safe driving.
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An Investigation of Brake Application Delays in Australian Train Brake SystemsRipley, Ian, ian.ripley@qr.com.au January 2005 (has links)
An investigation of brake application delays in Australian train brake systems
began with a literature review of pneumatic train braking systems. Data located in the
review gave examples of brake application delays of pre 1990 designs from the U.K.,
India and North America. Information on application delays on later Australian designs
was scarce. Reading of literature has shown a difference between the Australian and
North American control valves in the way the propagation of the pressure reduction rate
in the brake pipe is maintained. Control valves of the North American style allow the
brake pipe air to be connected for a short time to a small cavity or quick service volume
of each valve. The quick service volume is then released to atmosphere. The action of
exhausting a small amount of air from the brake pipe helps to ensure a propagation of an
adequate pressure reduction rate as it travels to the next valve. Australian control valves
rely on the ratio of the volume of brake pipe between control valves and the size of the
quick service volume or bulb to ensure the propagation of an adequate pressure
reduction as it travels to the next valve. The air in a bulb of an Australian valve is not
expelled to atmosphere until a brake release is made.
The research explored possible reductions in application delays by utilizing an
experimental pipe test rack that included 4 control valves and 120 meters of brake pipe.
Experiments with different configurations of exhaust orifices or chokes, valves and
branch pipe lengths that supplied the valves gave a record acquired by data acquisition
of the timing of each valve and the local pressure drop from a valve or each valve for
comparison.
Experiments with exhaust chokes that gave a reduction drop rate in the brake pipe
that approached the minimum required to operate a control valve resulted in instability
of the application operation of the control valve. The quick service volume of different
sizes was included in the experiments to give comparisons in the propagation of the
pressure reduction toward the end of a long train. Further increases into the size of the
bulb of a control valve to enhance the propagation features toward the end of a long
train are discussed. The branch pipe with different diameters from 12 mm to 20 mm and
lengths from 160 mm to 800 mm when fitted to an adaptor pipe bracket were
investigated and results show that larger diameters gave larger gulps in the brake pipe.
Other components that were studied included the pipe bracket that is fitted on some
control valves. The pipe bracket and isolation cock was found to add 282 mm of
additional length to the air path and while not changing the operation of the valve, the
results showed a smaller drop in local pressure in the brake pipe to assist the pressure
reduction rate than shown in valves without pipe brackets.
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Experimental Investigation of Dither Control on Effective Braking TorqueBadertscher, Jeff (Jeffrey William) 18 May 2005 (has links)
Dither control is a method of introducing high frequency control efforts into a system to suppress a lower frequency disturbance. Dither control is an effective means of suppressing automotive brake squeal. Brake squeal is a problem that has plagued the automotive industry for years. In fact many makers of materials for brake pads spend up to 50% of their engineering budgets on noise, vibration and harshness issues. A normal dither signal may be introduced to an automotive braking system by placing a piezoceramic stack actuator in the piston of a floating caliper brake. Many theoretical models indicate a reduction in the braking torque due to the dither signal. Under the assumption of Hertzian contact stiffness the loss in braking torque is due to lowering of the average normal force. There are also theories that the dither signal eliminates the stick-slip oscillation causing an effective decrease in the friction force. Yet another theory indicates that the effective contact area is reduced, lowering the mean coefficient of friction. It is not apparent whether any of these models accurately portrays the interaction of the brake pads and rotor.
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Performance of passenger vehicle anti-lock braking system : an experimental studyCuderman, Jerry Ferdinand, 1966- 07 March 2011 (has links)
Not available / text
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Improving emergency braking performance of heavy goods vehiclesHenderson, Leon Michael January 2014 (has links)
No description available.
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Active control of automotive disc bake rotor squeal using ditherGraf, Aaron John 05 1900 (has links)
No description available.
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Optimum design of axisymmetric structures subjected to thermal loading (friction brakes)Elbella, Abdalla Mohamed Ali. January 1984 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1984. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographies.
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