Volume 29 Issue 2
Feb.  2014
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DENG Zhi-wei, HUANG Xiang-hua, TIAN Chao. Real-time modeling of propeller in a turboprop engine[J]. Journal of Aerospace Power, 2014, 29(2): 434-440. doi: 10.13224/j.cnki.jasp.2014.02.024
Citation: DENG Zhi-wei, HUANG Xiang-hua, TIAN Chao. Real-time modeling of propeller in a turboprop engine[J]. Journal of Aerospace Power, 2014, 29(2): 434-440. doi: 10.13224/j.cnki.jasp.2014.02.024

Real-time modeling of propeller in a turboprop engine

doi: 10.13224/j.cnki.jasp.2014.02.024
  • Received Date: 2012-12-25
  • Publish Date: 2014-02-28
  • Based on strip theory and force analysis on the blade element, calculation equations of propeller drag and power was deduced, and then a real-time mathematical model of propeller was built. It was concluded that resolution of the model was decided by the interfercence angle interation, and the key problems of guaranting real-time calculation lied in the iteration of convergence rate of interference angle. After analysis of iteration function and its derivative, method of setting initial iterative value of interference angle was proposed and secant method was adopted to accelerate the iterative instead of derivation method. Comparison between the experiment data and computational propeller properties of mathematical model showed that,the propeller drag and power deduced from strip theory and force analysis on the blade element has satisfactory precision, and the convergence rate of the interference angle iteration algorithm based on initial iterative value setting and secant method could meet the requirement of real-time simulation of turboprop engine control system.

     

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