The moving train having the kinetic energy. The train will be stopping by using brakes. When the brakes will apply on the train wheels the friction will be creates in between the wheels and brake shoe. This energy dissipated on surrounding in the form of heat. Friction is created heat; if the brake gets too hot they will cease to work because they cannot dissipate enough heat. The train brake is exposing the massive thermal traces throughout routing braking and extraordinary thermal traces throughout laborious braking. The major drawback in exciting train brake shoes is due to high thermal stresses, crakes create on the surface of brake shoe. The life of the brake shoe also decreased. The aim of the project is to reduce the thermal stresses, crakes and increase the life of the brake shoe. Static, Modal analysis are to be done on the train brake. In static analysis, ultimate stress limit for the design is found. In modal analysis, mode shapes of the train brake for number of modes can be analysed. Presently the train brake material high carbon alloy we modified the material nickel chromium alloy, malleable cast iron. The modelling we are using SOLID WORKS and analysis is done using COSMOS.
Control surface actuators are the key systems in any flight vehicle for enabling a strict control on the flight parameters. The electromechanical actuator developed for an Unmanned aerial vehicle (UAV) is subjected to sub-zero temperatures due to the altitude of operation. This paper discusses on how an actuator developed is studied experimentally and improvised in design to ensure performance at-40 o C. The experimental observations are reasoned and supported by theoretical studies and remedial measures incorporated to improve the actuator performance.
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