Volume 30 Issue 4
Apr.  2015
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ZHANG Rong-ping, WANG Xun-nian, HUANG Yong. Air bridge technology for engine power simulation test in wind tunnel[J]. Journal of Aerospace Power, 2015, 30(4): 910-915. doi: 10.13224/j.cnki.jasp.2015.04.018
Citation: ZHANG Rong-ping, WANG Xun-nian, HUANG Yong. Air bridge technology for engine power simulation test in wind tunnel[J]. Journal of Aerospace Power, 2015, 30(4): 910-915. doi: 10.13224/j.cnki.jasp.2015.04.018
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Air bridge technology for engine power simulation test in wind tunnel

doi: 10.13224/j.cnki.jasp.2015.04.018

  • 1. State Key Laboratory of Aerodynamics, China Aerodynamics Research and Development Center, Mianyang Sichuan 621000, China;

  • 2. Low Speed Aerodynamics Institute, China Aerodynamics Research and Development Center, Mianyang Sichuan 621000, China

  • Received Date: 2014-03-25
  • Publish Date: 2015-04-28
    Abstract
  • The design technology and correction method of the air bridge for engine simulation test in wind tunnel were presented. The layout of the air bridge was determined according to freedom analysis. By finite element analysis, the key beams of air bridge were optimized. The rigidity of the air bridge and the balance was matched based on air bridge and balance assembly numerical simulation. These design and optimization minimized the applied force of the air bridge and improved the capacity for overcoming pressure and temperature effect. The rigidity effect, pressure effect, temperature effect and mass flow effect of the air bridge were corrected by serial tests. These corrections further minimized residual force of the air bridge. A high aspect ratio airplane full-span turbofan powered simulators (TPS) test was conducted in 8 m×6 m low speed wind tunnel .The test results were good in repeatability. The standard deviation of drag coefficient was 0.0003. The test results also agreed well with related papers. The air bridge technology is thus proved successful and can meet the requirement of TPS nacelle power simulation test.

     

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