Advanced Maintaince Practices

Advanced Maintaince Practices

Report No. 1

 Introduction

Maintenance function is used to ensure that all physical assets continue perform the desired functions. Maintenance is the goal is to ensure the competitiveness of the Company, ensuring adequate levels of Reliability and Availability equipment, respecting the requirements of quality, safety and environment. Reliability is the probability that a particular computer operating under the predefined conditions without suffering failures. We will discuss one system of aircraft controlling in which we will talk about the systems that is oil monitoring and other systems required to monitor the current status of the plane. There are many other systems of controlling and monitoring, but it is impossible to discuss these issues in this limited report such as vibration analysis, ultrasound, thermal etc. The basic phenomenon for all these techniques uses sensors.

Discussion

The Full Authority Digital Engine (Electronics) Control (FADEC) is automatic control system parameters and performance of an aircraft engine. It is usually associated with a computer digital called EEC (Electronic Engine Controller) or ECU (Engine Control Unit) connected to sensors and actuators that control all aspects of engine performance. FADEC systems have been developed both for internal combustion engines that for jet engines.

How it is used

The purpose of the control system is to operate the motor at maximum efficiency for every condition of operation request without exceeding the limits inherent in each motor. The complexity of the task is proportional to the complexity of the engine and operating conditions. Originally, the control system consisted of several links and electromechanical switches operated by the pilot. With the increasing complexity (and number) of engines fitted, it was necessary to devote one third crew member (the flight engineer) to control engine parameters. The pilot, acting on the throttle, was given a boost, but the controllers hydro mechanical, internal engine could not take into account the natural degradation of engine performance over time, hence the need by the pilot to verify that the effort demanded did not exceed the limitations (exhaust gas temperature, rotation speed, pressure and oil temperature, etc..) of the motor.

Its applications

We can illustrate the functions of the FADEC with a typical flight of civil aircraft carriers. The pilot enters the flight management system (FMS), flight data such as wind direction and the runway in use and the route assigned by ATC. From these data and the information contained in the database navigation, the FMS calculates the thrust needed for takeoff. The pilots set the throttle to push the request, and the FADEC based on throttle position, manages all of the actuators and actuators because the engine delivers the necessary thrust. Once airborne had given the variable environmental conditions (humidity, pressure, temperature, etc.). Required frequent adjustments to maintain the maximum efficiency of the motor to the thrust required. All of these variations needed remain always charged to the FADEC that, at the same time, maintains the operating parameters within the constructive limitations. The pilots have no way of intervening on the engine performance if not by adjusting the ...