53. Static test rig development and application for an airliner’s hyperstatic aero‑engine pylon structure

Luo Dongming1, Tang Wei2, Xue Caijun3, Zhang Pengfei4

1, 2, 3, 4Key Laboratory of Fundamental Science for National Defense – Advanced Design Technology of Flight Vehicle, Nanjing University of Aeronautics & Astronautics, Nanjing, 210016, China

4Shanghai Aircraft Design and Research Institute Commercial Aircraft Corporation of China, Ltd.,
Shanghai, 201210, China

3Corresponding author

E-mail: 1luodongming@nuaa.edu.cn, 2tangwei125618@126.com, 3cjxue@nuaa.edu.cn, 4zhangpengfei@comac.cc

(Received 1 August 2014; received in revised form 1 September 2014; accepted 8 September 2014)

Abstract. A set of test system, which is suitable for static test of a hyperstatic aero-engine pylon structure of a certain aircraft, was designed according to the requirements of static structure test. This test technology solved some key problems such as support stiffness simulation of hyperstatic engine pylon and aero-engine loading simulation. Based on these experimental techniques, the static test on a hyperstatic aero-engine pylon of a certain aircraft has been completed in the paper. The test results testified to the stable and reliable working performance of the test system. And the aero-engine pylon, the test specimen, didn’t produce any crack or harmful large deformation under all work conditions, indicating that it has met the design requirements on both static strength and stiffness. The test technology can be applied in static tests of similar hyperstatic test specimen. The test data can serve as a basis for structural static strength and stiffness property evaluation of the aero-engine pylon.

Keywords: static structure test, stiffness simulation, static indeterminate, aero-engine pylon.


[1]        Kemp J., Woods L. Live fire testing a legacy system – assessing dry bay fire potential in the new C‑5M engine pylon. 50th AIAA/ASME/ASCE/AHS/ASC structures, structural dynamics, and materials conference, Palm Springs, 2009.

[2]        Gu S. Aircraft Conceptual Design. Beijing, Beihang University, 2009.

[3]        Luo J. A study on the stiffness simulation calculation method of flutter models of after body and horizontal tail of a new type aeroplane. Journal of Nanjing University of Aeronautics & Astronautics, Vol. 23, 1991, p. 121‑123.

[4]        Zhao S. Experimental research of boundary conditions for static structure test. Structure & Environment Engineering, Issue 2, 1991, p. 35‑39.

[5]        Fang M. A coordinate automatic control loading method in the control software for static test of a complete helicopter. Helicopter Technique, Issue 3, 1999, p. 36‑40.

[6]        Yang M., Jiang D. Theoretical design and output signal analysis of the circular-section I-shaped beam shearing force sensor. Journal of Transducer Technology, Issue 2, 1990, p. 36‑38.

[7]        S. F. Ma, T. K. Shiue Aircraft airworthiness certification: static bench testing of an airfoil elevator. Experimental Techniques, Vol. 27, 2003, p. 32‑35.

[8]        Yu S., Sun B., Lou W. Pneumatic stiffness simulation of wing tunnel aeroelastic model tests for closed long‑span roof. Journal of Zhejiang University, Vol. 39, 2005, p. 6‑10.

[9]        Xu Z. Digital simulation of full scale static test of aircraft. Chinese Journal of Aeronautics, Vol. 18, 2005, p. 138‑141.

[10]     Ramly R., Kuntjoro W., Wisnoe W., et al. Design and analysis for development of a wing box static test rig. 2010 International Conference on Science and Social Research, Kuala Lumpur, 2010.

[11]     Zhao Q., Ding Y., Jin H. Effects of structure stiffnesses on the load distribution of bolt group at wing root. Chinese Journal of Aeronautics, Vol. 29, 2008, p. 931‑936.

Cite this article

Dongming Luo, Wei Tang, Caijun Xue, Pengfei Zhang Static test rig development and application for an airliner’s hyperstatic aero-engine pylon structure. Journal of Measurements in Engineering, Vol. 2, Issue 3, 2014, p. 145‑153.


Journal of Measurements in Engineering. September 2014, Volume 2, Issue 3
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