Hanz Richter's Advanced control of turbofan engines PDF

By Hanz Richter

ISBN-10: 146141170X

ISBN-13: 9781461411703

ISBN-10: 1461411718

ISBN-13: 9781461411710

Advanced regulate of Turbofan Engines describes the operational functionality specifications of turbofan (commercial) engines from a controls platforms viewpoint, overlaying industry-standard tools and research-edge advances. This publication permits the reader to layout controllers and bring life like simulations utilizing public-domain software program like CMAPSS: advertisement Modular Aero-Propulsion procedure Simulation, whose models are published to the general public by way of NASA. The scope of the booklet is established at the layout of thrust controllers for either regular flight and temporary maneuvers. Classical keep an eye on concept isn't really dwelled on, yet as an alternative an advent to normal undergraduate keep an eye on innovations is equipped. Advanced regulate of Turbofan Engines is perfect for graduate scholars doing learn in airplane engine regulate and non-aerospace orientated keep watch over engineers who want an creation to the field.

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Extra info for Advanced control of turbofan engines

Example text

The locus of compressor map points having a fuel flow rate equal to the lean blowout can be represented as an additional operating boundary to be taken into account when designing engine controllers. A simple approach often adopted in practice is to introduce absolute limits on both rate and magnitude of the commanded fuel flow rate [2]. 5 Structural and Thermal Limits Aside from limits introduced by specific engine components, mechanical and thermal limits on engine materials are imposed to reduce the rate at which wear occurs.

System identification techniques have several drawbacks, including the need for time-consuming trial-and-error procedures to arrive at the proper model structure, the influence of the chosen test input on the results and the need for long data records [15]. For comprehensive information on system identification, the reader is referred to classical works such as Ljung [16] or Sage and Melsa [17]. For a detailed treatment of these methods as applicable to GTEs, refer to Kulikov and Thompson [18].

All of the variables which are subject to a constraint will be presented as outputs of a state-space model. In a linearized model, for instance, turbine temperature, compressor stall margin, fan speed, and other variables will correspond to transfer functions from fuel flow rate, all stemming from the same A and B matrices of a state-space system. Established approaches, such as the industry-standard fan speed regulation with max–min limit protection logic will be examined under this framework.

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Advanced control of turbofan engines by Hanz Richter

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