非平稳随机振动与烈度控制
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摘要
本文阐述了随机振动试验的变烈度控制原理。基于高斯载波调制时间窗的乘积模型,研究了火箭非平稳随机振动的表征、分解和再造,形成了统一的分析、综合和试验控制的算法。以累积损伤谱为判据,用典型信号比较了几种等效模拟方法的效果,得到了肯定的结论。
The principle of alterable intensity control is expatiated for random vibration testing. Base on product model of Gaussian carrier wave modulated slow change time window, the characteristic, decompounds and reformation is investigated for the rocket non-stationary random vibration. The unification arithmetic on analysis, synthesis and testing control is formed. By cumulative damage spectrum as criterion, the several equivalent simulation methods are compared using typical signal. The positive conclusion is obtained.
The principle of alterable intensity control is expatiated for random vibration testing. Base on product model of Gaussian carrier wave modulated slow change time window, the characteristic, decompounds and reformation is investigated for the rocket non-stationary random vibration. The unification arithmetic on analysis, synthesis and testing control is formed. By cumulative damage spectrum as criterion, the several equivalent simulation methods are compared using typical signal. The positive conclusion is obtained.
引文
[1]Harris C M,Piersol A G.Harris’s shock and vibration handbook[S].5th Edition,McGRAW-HILL,2002.
[2]MIL-STD-810G.Department of defense test method standard,method 519.6 gunfire shock[S].2008.
[3]NASA-HDBK-7005.Dynamic environmental criteria[S].
[4]Smallwood D O.Vibration with non-gaussian noise[J].Journal of the institute of environmental sciences and technology,2009,52(3):13-20.
[5]Minderhoud J,Van Baren P.Using kurtosion to accelerate structural life testing[J].Sound&vibration,2010.
[6]Kihm F,Freguson N S,Antoni J.Fatigue life from kurtosis controlled excitations[C].6th Fatigue design conference fatigue design,2015.
[7]Kihm F,Rizzi S A,Ferguson N S,et al.Understanding how kurtosis is transferred from input acceleration to stress response and its influence on fatigue life[C].11th International Conference 1-3 July2013,Pisa.
[8]吴家驹,付玮,张鹏飞.基于β分布随机数排序的非高斯振动模拟方法[J].强度与环境,2017,44(2):1-8.[WU Jia-ju,FU Wei,ZHANG Peng-fei.Simulation method of non-Gaussian vibration base on re-arrangement ofβdistribution random number[J].2017,44(2):1-8.]
[9]吴家驹,贺智国,付玮.非高斯随机振动与峭度控制[J].强度与环境,2018,45(2):1-8.[WU Jia-ju,HE Zhi-guo,FU Wei.Non-Gaussian random vibration and kurtosis control[J].structure&environment engineering,2018,45(2):1-8.]
[10]Palmieri M,etc.Non-Gaussian and non-stationary in vibration fatigue[J].International journal of fatigue,2017.
[11]Bendat J S,Piersol A G.random data:analysis and measurement procedures(2nd Edition)[M].A Wiley-tntercience publication,john wiley&sons,World Publishing Corporation,1985:425-483.
[12]吴家驹,张鹏飞,胡亚冰.非高斯随机振动的分析基础[J].强度与环境,2018,45(2):1-8.[WU Jia-ju ZHANG Peng-fei HUYa-bing.Analytical basis for the synthesis of non-Gaussian random vibration[J].强度与环境,2018,45(2):1-8.]
[13]Smallwood D O.Generation of stationary non-gaussian time histories with a specified cross spectral density[J].Shock and Vibration,1997,4(5,6):361-377.
[14]Lou C H,Chen C H,Mao C H.Detecting seismic response signals using singular spectrum analysis[J].Proc.of SPIE Vol.764776471S-12.
[15]Rouillard V.The synthesis of road vehicle vibrations based on the statistical distribution of segment lengths[C].5th Australasian Congress on Applied Mechanics,ACAM 2007 10-12 December2007,Brisbane,Australia.
[16]Angeli A,Cornelis B.Fatigue damage spectrum calculation in a mission synthesis procedure for sine-on-random excitations[J].Journal of Physics:Conference Series 744,2016.
[2]MIL-STD-810G.Department of defense test method standard,method 519.6 gunfire shock[S].2008.
[3]NASA-HDBK-7005.Dynamic environmental criteria[S].
[4]Smallwood D O.Vibration with non-gaussian noise[J].Journal of the institute of environmental sciences and technology,2009,52(3):13-20.
[5]Minderhoud J,Van Baren P.Using kurtosion to accelerate structural life testing[J].Sound&vibration,2010.
[6]Kihm F,Freguson N S,Antoni J.Fatigue life from kurtosis controlled excitations[C].6th Fatigue design conference fatigue design,2015.
[7]Kihm F,Rizzi S A,Ferguson N S,et al.Understanding how kurtosis is transferred from input acceleration to stress response and its influence on fatigue life[C].11th International Conference 1-3 July2013,Pisa.
[8]吴家驹,付玮,张鹏飞.基于β分布随机数排序的非高斯振动模拟方法[J].强度与环境,2017,44(2):1-8.[WU Jia-ju,FU Wei,ZHANG Peng-fei.Simulation method of non-Gaussian vibration base on re-arrangement ofβdistribution random number[J].2017,44(2):1-8.]
[9]吴家驹,贺智国,付玮.非高斯随机振动与峭度控制[J].强度与环境,2018,45(2):1-8.[WU Jia-ju,HE Zhi-guo,FU Wei.Non-Gaussian random vibration and kurtosis control[J].structure&environment engineering,2018,45(2):1-8.]
[10]Palmieri M,etc.Non-Gaussian and non-stationary in vibration fatigue[J].International journal of fatigue,2017.
[11]Bendat J S,Piersol A G.random data:analysis and measurement procedures(2nd Edition)[M].A Wiley-tntercience publication,john wiley&sons,World Publishing Corporation,1985:425-483.
[12]吴家驹,张鹏飞,胡亚冰.非高斯随机振动的分析基础[J].强度与环境,2018,45(2):1-8.[WU Jia-ju ZHANG Peng-fei HUYa-bing.Analytical basis for the synthesis of non-Gaussian random vibration[J].强度与环境,2018,45(2):1-8.]
[13]Smallwood D O.Generation of stationary non-gaussian time histories with a specified cross spectral density[J].Shock and Vibration,1997,4(5,6):361-377.
[14]Lou C H,Chen C H,Mao C H.Detecting seismic response signals using singular spectrum analysis[J].Proc.of SPIE Vol.764776471S-12.
[15]Rouillard V.The synthesis of road vehicle vibrations based on the statistical distribution of segment lengths[C].5th Australasian Congress on Applied Mechanics,ACAM 2007 10-12 December2007,Brisbane,Australia.
[16]Angeli A,Cornelis B.Fatigue damage spectrum calculation in a mission synthesis procedure for sine-on-random excitations[J].Journal of Physics:Conference Series 744,2016.