压气机静叶调节机构的柔性多体建模及仿真
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摘要
基于多体动力学理论,应用自研柔性多体动力学仿真程序,建立了压气机静叶调节机构的纯刚性以及考虑尺寸公差和运动副间隙、摇臂柔性、联动环柔性、热变形的多个多体动力学模型,并用纯刚性和考虑摇臂变形两个模型与商业软件对比,完成软件及模型校验。通过模型仿真定量研究了以上因素对可调叶片角度周向一致性和调节精度的影响及影响程度,研究结果可直接用于指导压气机静叶调节机构的设计与优化。
Based on multi-body dynamics, several flexible multi-body dynamic models for an adjusting mechanism of variable stator vanes including rigid, dimensional tolerance, clearance of joint, flexible rockers, flexible linkage and thermal deformations models have been built through an in-house flexible multi-body dynamic program. Then the modeling approach was validated by comparing the results with a commercial software MSC/ADAMS using rigid and flexible rockers models. Furthermore, combined with further simulations, effects of the above-mentioned factors on circumferential consistency and adjustment precision were quantitatively studied. Reasonably, the obtained results can be a direct guidance to design and optimize the adjusting mechanism of variable stator vanes of compressors.
Based on multi-body dynamics, several flexible multi-body dynamic models for an adjusting mechanism of variable stator vanes including rigid, dimensional tolerance, clearance of joint, flexible rockers, flexible linkage and thermal deformations models have been built through an in-house flexible multi-body dynamic program. Then the modeling approach was validated by comparing the results with a commercial software MSC/ADAMS using rigid and flexible rockers models. Furthermore, combined with further simulations, effects of the above-mentioned factors on circumferential consistency and adjustment precision were quantitatively studied. Reasonably, the obtained results can be a direct guidance to design and optimize the adjusting mechanism of variable stator vanes of compressors.
引文
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[14] Manual A U. ANSYS User’s Manual[K]. SAS IP inc,1998.
[2] Royce R. The jet engine[M]. 5th ed. ROLLS-ROYCE plc.,1996.
[3]李绍斌,陈浮,颜培刚,等.静叶时序对压气机叶片附面层流动影响的数值研究[J].航空学报,2007,28(增刊):62—69.
[4]邓向阳,张宏武,黄伟光.低速轴流压气机中前后静叶对动叶顶部区域流动的影响[J].航空学报,2006,26(5):535—539.
[5] Michael Hensges. Simulation and optimization of anadjustable inletguide vane for industrial turbo compressors[R]. ASME 2008-GT-50242,2008.
[6] Dave Riesland. Aircraft engine analysis using ADAMS[C]//. European ADAMS User Conference. New York:Mechanical Dynamics Inc.,2000:1—7.
[7]杨伟,罗秋生,张少平,等.基于UG和ADAMS的调节机构虚拟样机动力学仿真[J].燃气涡轮试验与研究,2009,22(2):22—26.
[8]杨伟,徐伟. ADAMS参数化分析在高压压气机调节机构设计中的初步应用[J].燃气涡轮试验与研究,2012,25(4):20—24.
[9] Ryan R R. ADAMS-multibody system analysis software[M]. Berlin:Springer,1990:361—402.
[10]赵治华,任革学.柔性多体系统动力学求解器平台V1.0[Z]. 2016.
[11] Zhao Z,Ren G. A quaternion-based formulation ofeuler-bernoulli beam without singularity[J]. NonlinearDynamics,2012,67(3):1825—1835.
[12] Shabana A A. Dynamics of multibody systems[M]. UK:Cambridge University Press,2005.
[13] Shabana A A. Flexible multibody dynamics:review of pastand recent developments[J]. Multibody System Dynamics,1997,1(2):189—222.
[14] Manual A U. ANSYS User’s Manual[K]. SAS IP inc,1998.