Cryogenic Liquid Rocket Engine Test Bench Fault-Tolerant Control System: Cooling System Application

Cryogenic Cooling System

Printed & published by Dr Mohinder Singh, Director, DESIDOC, on behalf of DRDO. RNI No. 55787/93 Readers of Technology Focus are invited to send their communications to the Editor, Technology Focus DESIDOC, Metcalfe House, Delhi 110 054. India Telephone: 011-23819975; Fax: 011-23819151; Drona-mail: [email protected] E-mail: [email protected], [email protected] Internet: http://www....

Design of Fault Tolerant Flight Control System

The purpose of the paper is to present an approach to detect, isolate and accommodate the sensor or actuator faults using bank of observer and unknown input observers (UIO). Full order observers, reduced order observers, unknown input observers and Kalman Filter are widely used in state estimations [1]. After the estimation of states, fault detection and isolation can be provided by conducting ...

Robust Takagi-Sugeno sensor fault tolerant control strategy for nonlinear system

Effect of Aspect Ratio on Supercritical Heat Transfer of Cryogenic Methane in Rocket Engine Cooling Channels

The supercritical turbulent flow of cryogenic methane flowing in a rocket engine cooing channel is numerically analysed by imposing constant heat flux at the bottom surface of the channel. The calculation scheme is validated by comparing the results obtained with experimental results reported in literature. The heat transfer coefficient is influenced by the strong variation in thermophysical pr...

Fault tolerant system with imperfect coverage, reboot and server vacation

This study is concerned with the performance modeling of a fault tolerant system consisting of operating units supported by a combination of warm and cold spares. The on-line as well as warm standby units are subject to failures and are send for the repair to a repair facility having single repairman which is prone to failure. If the failed unit is not detected, the system enters into an unsafe...