Monopropellant rocket

Approximation of Linear Input/Output Delay-Differential Systems

Published in K. D. Elworthy, W. Norrie Evenitt, E. Bruce Lee, Differential equations, dynamical systems, and control science, 2017

E. Bruce Lee

To conclude this section we offer one example of model reduction (approximation) by the above algorithm which shows details of each step. The model is one obtained by Fiagbedzi and Pearson [25], see also [14], for control of recirculation combustion in a monopropellant rocket engine - their transfer function model is

Stability and stabilisation of switched time-varying delay systems: a multiple discontinuous Lyapunov function approach

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Journal Information

Published in International Journal of Systems Science, 2020

Mohammad Mahdi Saberi, Iman Zamani

A model of combustion in rocket motor chambers (Zheng & Frank, 2002), is considered here for stabilisation with sliding mode control, to illustrate the effectiveness of the obtained results in practical applications. This model represents a liquid monopropellant rocket motor with a pressure feeding system. Under the assumption of nonsteady flow and lumped lag factor, an appropriate linearised model can be in the form of switched delay systems (1) with the following coefficients (Mahmoud, 2010): and , where represents the mode of operation, and Tables 5 and 6 show the data and Parameters of Example 4.

Monopropellant rocket

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