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...

The dynamic characteristic of pneumatic brake system is very important, so the full-parameter model of the pneumatic brake system was established on the base of the technology of computer simulation. Its key brake components include brake valve, relay valve, diaphragm brake chamber and pneumatic circuit. AMESim was first introduced on the basis of mathematical derivation. So the multivariable c...

The objective of this study is to develop a new environmentally-friendly brake pad made from eggshells (Es) and banana peels (BPs) as reinforcement agents. E BP particles dual with various compositions were combined. E/BP mixture was then embedded on polymer matrix composing resin/hardener in 1:1 ratio. As standard, pads using single also fabricated. Physical properties (i.e. particle size, sur...

Air brake system has been widely used in heavy trucks and intercity buses for its great superiority over other brake system. The practical performance of air brake system may be greatly different from if we analyze it with static theory. Thus, it is necessary to build an integrate air brake system model to simulate the process of brake accurately. However, the dynamic mathematic model of air br...

gas motion within the cylinder is one of the major factors that control the combustion process in spark ignition engine. it also has significant impact on heat transfer. both the bulk gas motion and the turbulence characteristics of the flow are important and governing the overall behavior of the flow. an arrangement for obtaining a stratified charge, using port injection, is proposed for a cur...

Currently, the theoretical braking force control mode, characterized by actual deceleration as an unstable open-loop output, is most widely used brake mode in trains. To overcome shortcomings of non-deceleration modes, a proposed to realize closed-loop train deceleration. First, algorithm based on parameter estimation was derived. Then, software logic designed existing system meet engineering r...

A room-temperature light-driven molecular brake (1), consisting of a pentiptycene rotator, a 3,5-dinitrophenyl brake, and a photoisomerizable ethenyl spacer, is reported. The rotation rates of the rotator differ by about 9 orders of magnitude between the brake-on (cis-1) and brake-off (trans-1) states.