Computational analysis on structural vibration loads of rotor based on fluid-structure interaction method

被引：0
|
作者：
Yu Z.-H. [1 ]
Zhou Y. [1 ]
Song B. [1 ]
Yu Z.-H. [1 ]
Kang J.-P. [2 ]
机构：
[1] Science and Technology on Rotorcraft Aeromechanics Laboratory, CHRDI, Jingdezhen
[2] National Key Laboratory of Rotorcraft Aeromechanics, Nanjing University of Aeronautics and Astronautics, Nanjing
来源：
Zhendong Gongcheng Xuebao/Journal of Vibration Engineering | 2020年 / 33卷 / 02期
关键词：
Helicopter; Large deformation; Liquid-solid coupling; Rotor; Vibration loads;
D O I：
10.16385/j.cnki.issn.1004-4523.2020.02.008
中图分类号：
学科分类号：
摘要：
A fluid-structure interaction method for structural vibration loads of rotor is adopted to calculate the vibration loads of rotor in forward flight. The large deformation beam model is adopted in dynamic model of the rotor. The computational fluid dynamics (CFD) method is adopted in aerodynamic computation coupling with multiple mesh motion. The integration of structural model and aerodynamic model is achieved by loose coupling method. The CFD model is validated by accurately calculating aerodynamic characteristic in model rotor. The computational structural dynamics (CSD) model is validated by accurately calculating in blade model frequency. The flight test data of SA349/2 helicopter is used to validate this coupling method. The improvement of the prediction accuracy of the loose coupling method for the rotor vibration loads is effectively demonstrated. Comparing with the free wake method, the effectiveness of prediction analysis of the rotor vibration loads is validated. © 2020, Nanjing Univ. of Aeronautics an Astronautics. All right reserved.
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页码：285 / 294
页数：9
相关论文
共 12 条
  • [1] Shi Y., Xu Y., Xu G., Et al., A coupling VWM/CFD/CSD method for rotor airload prediction, Chinese Journal of Aeronautics, 30, 1, pp. 204-215, (2017)
  • [2] Wu J., Yang W., Yu Z., Comparison among rotor blade structural load calculation methods, Journal of Vibration and Shock, 33, 7, pp. 210-214, (2014)
  • [3] Sun T., Tan J., Wang H., Prediction and analysis of rotor vibration loads in typical flight conditions, Journal of Nanjing University of Aeronautics & Astronautics, 43, 3, pp. 302-307, (2011)
  • [4] Zhao J.G., He C.J., Rotor blade structural loads analysis using coupled CSD/CFD/VVPM, 69th American Helicopter Society International Annual Forum, AHS, United States, pp. 188-209, (2013)
  • [5] Wang J.Y., Zhao Q.J., Xiao Y., Calculations on aeroelastic loads of rotor with advanced blade-tip based on CFD/CSD coupling method, Acta Aeronautica et Astronautica Sinica, 35, 9, pp. 2426-2437, (2014)
  • [6] Ma L., Zhao Q.J., Zhao M.M., Et al., Computation analysis of aeroelastic loads of rotor based on CFD/CSD coupling method, Acta Aeronautica et Astronautica Sinica, 38, 6, pp. 53-66, (2017)
  • [7] Bhagwat M.J., Ormiston R.A., Saberi H.A., Et al., Application of CFD/CSD coupling for analysis of rotorcraft airloads and blade loads in maneuvering flight, Journal of the American Helicopter Society, 57, 3, pp. 1-21, (2012)
  • [8] Qian W., Fu S., Cai J., Numerical study of airfoil dynamic stall, Acta Aerodynamic Sinica, 19, 4, pp. 427-432, (2001)
  • [9] Caradonna F.X., Tung C., Experimental and analytical studies of a model helicopter rotor in hover, Vertica, 5, 2, pp. 149-161, (1980)
  • [10] Felker F.F., Performance and loads data from a wind tunnel test of a full-scale, coaxial, hingeless rotor helicopter, (1981)
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