Article | 13th Scandinavian International Conference on Fluid Power; June 3-5; 2013; Linköping; Sweden | The Influence of Fuel Pressure Ripple on Performances of Engine Control System
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Title:
The Influence of Fuel Pressure Ripple on Performances of Engine Control System
Author:
V. Shorin: Samara State Aerospace University, Samara, Russian Federation A. Gimadiev: Samara State Aerospace University, Samara, Russian Federation V. Sverbilov: Samara State Aerospace University, Samara, Russian Federation
DOI:
10.3384/ecp1392a22
Download:
Full text (pdf)
Year:
2013
Conference:
13th Scandinavian International Conference on Fluid Power; June 3-5; 2013; Linköping; Sweden
Issue:
092
Article no.:
022
Pages:
225-228
No. of pages:
4
Publication type:
Abstract and Fulltext
Published:
2013-09-09
ISBN:
978-91-7519-572-8
Series:
Linköping Electronic Conference Proceedings
ISSN (print):
1650-3686
ISSN (online):
1650-3740
Publisher:
Linköping University Electronic Press; Linköpings universitet


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Pressure and flow ripple generated by a fuel pump have essential impact on static and dynamic performances of an engine control system. It is especially dangerous for open-loop control used at a turbojet starting mode. The fuel consumption deviation at the engine starting caused by nonlinear averaging of fluctuations over throttling elements can reach up to 25% of a nominal value and provoke engine stopping. In the paper; the method for calculation of the hydro mechanical system characteristics in the presence of fluid born noise and its application for the turbojet start control system are developed. The harmonic analysis and the least mean square (LMS) method for the restrictor performance linearization is used. To avoid influence of fuel flow disturbances on the engine static performance it is proposed to increase system accuracy at the starting mode by placing the hydraulic RL-filter into the control unit. The effect of the devise was surely verified by the engine test results

Keywords: Fuel flow ripple; turbojet control system; performance accuracy

13th Scandinavian International Conference on Fluid Power; June 3-5; 2013; Linköping; Sweden

Author:
V. Shorin, A. Gimadiev, V. Sverbilov
Title:
The Influence of Fuel Pressure Ripple on Performances of Engine Control System
DOI:
http://dx.doi.org/10.3384/ecp1392a22
References:

[1] K A Edge. Designing quieter hydraulic system ‚Äď some recent development and contributions. Proc. of the Forth JHPS International Symposium; Japan; Nov.; 1999.

[2] V P Shorin. Flow pulsations cancelation in aircraft pipelines. Machine Building; Moscow; 1980. -160 p. (in Russian).

[3] E Kojima & K A Edge. Experimental determination of hydraulic silencer transfer matrices and assessment of the method for use as a standard test procedure. Proc. Seventh Bath International Fluid Power Workshop; Bath; UK; September 1994; pp. 221-241.

[4] K Lau; D N Johnston & K A Edge. Fluid borne noise characteristics of hydraulic filters and silencers. Proc. of Seventh Bath International Fluid Power Workshop; Bath; UK; September 1994; pp. 242-261.

[5] V P Shorin et al. Flow ripple and noise reduction in hydro mechanical systems. SSAU; Samara; 2005. -314 p. ISBN 5-93424-203-2 (in Russian).

13th Scandinavian International Conference on Fluid Power; June 3-5; 2013; Linköping; Sweden

Author:
V. Shorin, A. Gimadiev, V. Sverbilov
Title:
The Influence of Fuel Pressure Ripple on Performances of Engine Control System
DOI:
http://dx.doi.org/10.3384/ecp1392a22
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