气动边界不确定条件下离心压气机叶轮优化设计
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摘要
以某小型离心压气机为研究对象,基于非嵌入式概率配置点法和数值分析研究气动边界不确定性对离心压气机气动性能的影响规律,量化转速波动不确定对离心压气机压比的影响程度;提出一种基于不确定分析方法、代理模型、多目标优化算法的离心压气机气动稳健设计方法,为离心压气机及其他叶轮机械设计及应用提供重要参考。研究结果表明,优化后叶轮压比增大4.1%,压比方差降低13.52%,叶轮气动稳健性增强。
Taking a small centrifugal compressor as the object, based on the non-intrusive probability collocation method and numerical analysis, the influence rule of the aerodynamic boundary uncertainty on the aerodynamic performance of the centrifugal compressor is studied, and the influence of the uncertainty of the rotational speed fluctuation on the centrifugal compressor pressure ratio is quantified. An aerodynamic robust design method for centrifugal compressor based on the uncertain analysis method, the surrogate model and the multi-objective optimization algorithm is proposed, which provides an important reference for the design and application of centrifugal compressor and other impeller machinery. The results show that the impeller pressure ratio increases by 4.1% and the pressure ratio variance decreases by 13.52% after optimization. The aerodynamic robustness is enhanced.
Taking a small centrifugal compressor as the object, based on the non-intrusive probability collocation method and numerical analysis, the influence rule of the aerodynamic boundary uncertainty on the aerodynamic performance of the centrifugal compressor is studied, and the influence of the uncertainty of the rotational speed fluctuation on the centrifugal compressor pressure ratio is quantified. An aerodynamic robust design method for centrifugal compressor based on the uncertain analysis method, the surrogate model and the multi-objective optimization algorithm is proposed, which provides an important reference for the design and application of centrifugal compressor and other impeller machinery. The results show that the impeller pressure ratio increases by 4.1% and the pressure ratio variance decreases by 13.52% after optimization. The aerodynamic robustness is enhanced.
引文
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[14] 张良,许思传,万玉.PEM燃料电池用空压机多参数多目标优化[J].电源技术,2016,40(1):81-83Zhang L,Xu S C,Wan Y.Multi-objective and multi-parameter optimization for centrifugal compressor used in PEM fuel cells[J].Chinese Journal of Power Sources,2016,40(1):81-83 (in Chinese)
[2] Javed A,Pecnik R,van Buijtenen J P.Optimization of a centrifugal compressor impeller for robustness to manufacturing uncertainties[J].Journal of Engineering for Gas Turbines and Power,2016,138(11):112101
[3] Ju Y P,Zhang C H.Robust design optimization method for centrifugal impellers under surface roughness uncertainties due to blade fouling[J].Chinese Journal of Mechanical Engineering,2016,29(2):301-314
[4] Gopinathrao N P,Bagshaw D,Mabilat C,et al.Non-deterministic CFD simulation of a transonic compressor rotor[C]//ASME Turbo Expo 2009:Power for Land,Sea,and Air.Orlando,Florida,USA:ASME,2009:1125-1134
[5] Wang X D,Hirsch C,Liu Z Y,et al.Uncertainty--ased robust aerodynamic optimization of rotor blades[J].International Journal for Numerical Methods in Engineering,2013,94(2):111-127
[6] 高丽敏,蔡宇桐,徐浩亮,等.压气机叶片加工误差影响不确定分析[J].航空动力学报,2017,32(9):2253-2259Gao L M,Cai Y T,Xu H L,et al.Uncertainty analysis of machining error influence of compressor blade[J].Journal of Aerospace Power,2017,32(9):2253-2259 (in Chinese)
[7] 刘智益,王晓东,康顺.叶顶间隙尺度的不确定性对压气机性能影响的CFD模拟[J].工程热物理学报,2013,34(4):628-631Liu Z Y,Wang X D,Kang S.CFD simulations of uncertain tip clearance effect on compressor performance[J].Journal of Engineering Thermophysics,2013,34(4):628-631 (in Chinese)
[8] 蔡宇桐,高丽敏,马驰,等.基于NIPC的压气机叶片加工误差不确定性分析[J].工程热物理学报,2017,38(3):490-498Cai Y T,Gao L M,Ma C,et al.Uncertainty quantification on compressor blade considering manufacturing error based on NIPC method[J].Journal of Engineering Thermophysics,2017,38(3):490-498 (in Chinese)
[9] 李书奇,刘畅,胡力峰,等.高原环境增压器离心压气机特性试验研究[J].机械工程学报,2016,52(20):151-158Li S Q,Liu C,Hu L F,et al.Experimental investigation on centrifugal compressor performance characteristics of plateau environment for vehicle turbocharger[J].Journal of Mechanical Engineering,2016,52(20):151-158 (in Chinese)
[10] 张皓光,谭锋,安康,等.不同转速下跨声速轴流压气机内部流动失稳的机理[J].航空动力学报,2018,33(6):1370-1380Zhang H G,Tan F,An K,et al.Mechanism of internal flow instability in transonic axial flow compressor at different rotating speeds[J].Journal of Aerospace Power,2018,33(6):1370-1380 (in Chinese)
[11] 张学锋,卢新根,韩戈,等.高压比离心压气机设计及试验验证[J].燃气轮机技术,2014,27(4):31-36Zhang X F,Lu X G,Han G,et al.Design and experimental validation of a high pressure ratio centrifugal compressor[J].Gas Turbine Technology,2014,27(4):31-36 (in Chinese)
[12] 唐新姿,肖鹏,蔡鹏,等.变流量工况下小型离心压气机多目标优化设计[J].中国机械工程,2018,29(16):1975-1983Tang X Z,Xiao P,Cai P,et al.Multi-objective optimization design of small-centrifugal compressor under variable flow conditions[J].China Mechanical Engineering,2018,29(16):1975-1983 (in Chinese)
[13] 王志恒,席光.离心压气机叶片扩压器气动优化设计[J].工程热物理学报,2007,28(3):391-394Wang Z H,Xi G.Aerodynamic optimization design of vaned diffuser for centifugal compressors[J].Journal of Engineering Thermophysics,2007,28(3):391-394 (in Chinese)
[14] 张良,许思传,万玉.PEM燃料电池用空压机多参数多目标优化[J].电源技术,2016,40(1):81-83Zhang L,Xu S C,Wan Y.Multi-objective and multi-parameter optimization for centrifugal compressor used in PEM fuel cells[J].Chinese Journal of Power Sources,2016,40(1):81-83 (in Chinese)