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Developing mathematical theories of the physical world: Open Access research on fluid dynamics from Strathclyde

Strathprints makes available Open Access scholarly outputs by Strathclyde's Department of Mathematics & Statistics, where continuum mechanics and industrial mathematics is a specialism. Such research seeks to understand fluid dynamics, among many other related areas such as liquid crystals and droplet evaporation.

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Finite time regulation of two-spool turbofan engines with one shaft speed control

Wang, Jiqiang and Dimirovski, Georgi and Yue, Hong (2016) Finite time regulation of two-spool turbofan engines with one shaft speed control. Journal of Dynamic Systems, Measurement, and Control, 138 (8). ISSN 0022-0434

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Abstract

Nonlinear control of aircraft engines has attracted much attention in consideration of the inherent nonlinearity of the engine dynamics. Most of the nonlinear design techniques, however, require the information from the rotational speeds of both high pressure compressor and fan. This is not desirable from engine health management perspective and this paper proposes a single sensor measurement and single actuator control approach. The proposed method can provide fast regulation of engine speed in a finite time in comparison with conventional infinite time stability. Important results are obtained on both controller design and disturbance tolerance. Numerical examples are provided for validation of the proposed finite time controller, demonstrating fast regulation property and remarkable disturbance tolerance capability.