固体推进剂药柱立式贮存的蠕变效应
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摘要
为研究立式贮存固体推进剂药柱经长期自重载荷的蠕变效应,开展了推进剂在不同应力水平下的蠕变试验,根据试验结果拟合了推进剂恒温定应力蠕变本构方程,并与哑铃型试件ABAQUS模拟计算结果进行了相互验证;开展了发动机固化降温和重力联合载荷下的模拟计算分析,并对发动机立式贮存损伤其关键点及关键路径损伤进行了计算。结果表明,试验结果验证了Norton本构方程用于发动机蠕变分析的可行性;模拟计算分析表明发动机药柱整体有下沉的趋势,前后人工脱粘层均有不同程度的缝隙张开,前人工脱粘层附近张开最大,后人工脱粘层附近张开最小,轴向位移方向指向头部,药柱最大径向位移发生在中孔处;药柱中孔处应力要高于其他部位,药柱前翼锥段处应力最大,其蠕变损伤为0.49%;模拟计算结果与实际存储环境下拆卸发动机的结果相一致。
To study the creep effect of the solid propellant grains of vertical storage within long-term gravity load, creep tests of propellant specimens at different stress levels were carried out. Based on the experimental results, the creep constitutive equation at constant temperature and constant stress of propellant was fitted, and the verification was carried out with ABAQUS simulation results of dumbbell-shaped specimens. The simulation calculation and analysis of motor under combined loadings of curing cooling and gravity were carried out, and the motor′s vertical storage damage of the key points and key paths was calculated. The results show that the feasibility of applying Norton constitutive equation to creep analysis of motor is verified by the test results. The simulation results show that the whole grain of motor has the tendency of sinking, the gaps of fore and aft artificial debonding layer is opened in different degrees. The opening near the fore artificial debonding layer is the biggest, and the opening near aft artificial debonding layer is the smallest. The direction of axial displacement points to the head, the biggest radial displacement of the grain occurs on the middle perforation. The stress of middle perforation is bigger than that of the other areas, the stress in cone section of the fore wing of the grain is the biggest, its creep damage is 0.49%. Simulation results are consistent with ones of dismantling motor under the real storage environment.
To study the creep effect of the solid propellant grains of vertical storage within long-term gravity load, creep tests of propellant specimens at different stress levels were carried out. Based on the experimental results, the creep constitutive equation at constant temperature and constant stress of propellant was fitted, and the verification was carried out with ABAQUS simulation results of dumbbell-shaped specimens. The simulation calculation and analysis of motor under combined loadings of curing cooling and gravity were carried out, and the motor′s vertical storage damage of the key points and key paths was calculated. The results show that the feasibility of applying Norton constitutive equation to creep analysis of motor is verified by the test results. The simulation results show that the whole grain of motor has the tendency of sinking, the gaps of fore and aft artificial debonding layer is opened in different degrees. The opening near the fore artificial debonding layer is the biggest, and the opening near aft artificial debonding layer is the smallest. The direction of axial displacement points to the head, the biggest radial displacement of the grain occurs on the middle perforation. The stress of middle perforation is bigger than that of the other areas, the stress in cone section of the fore wing of the grain is the biggest, its creep damage is 0.49%. Simulation results are consistent with ones of dismantling motor under the real storage environment.
引文
[1] Marimuthu R,Nageswara B.Development of efficient finite elements for structural integrity analysis of solid rocket motor propellant grains[J].International Journal of Pressure Vessels and Piping,2013,111/112:131-145.
[2] Raouf N,Pourtakdoust S H,Abadi B A A,et al.Structural reliability analysis of solid rocket motor with ellipsoidal[J].Journal of Spacecraft and Rockets,2016,53(2):389-392.
[3] 朱卫兵.固体火箭发动机药柱结构完整性及可靠性分析[D].哈尔滨:哈尔滨工程大学,2005.ZHU Wei-bing.A calculation analysis for structural integrity and reliability of solid rocket motor grain [D].Harbin:Harbin Engineering University,2015.
[4] 唐国金,申志彬,田四朋,等.固体火箭发动机药柱概率贮存寿命预估[J].兵工学报,2012,33(3):301-306.TANG Guo-jin,SHEN Zhi-bin,TIAN Si-peng,et al.Probabilistic storage life prediction of solid rocket motor grain[J].Acta Armamentarii,2012,33(3):301-306.
[5] 刘中兵,周艳青,张兵.固体发动机低温点火条件下药柱结构完整性分析[J].固体火箭技术,2015,38(3):351-355.LIU Zhong-bing,ZHOU Yan-qing,ZHANG Bing.Structural integrity analysis on grains of solid rocket motor at low temperature ignition[J].Journal of Solid Rocket Technology,2015,38(3):351-355.
[6] 田四朋.固体火箭发动机药柱三维粘弹性响应面随机有限元分析[J].固体火箭技术,2010,33(1):17-20.TIAN Si-peng.Three-dimensional viscoelastic response surface stochastic finite element analysis on solid rocket motor grain[J].Journal of Solid Rocket Technology,2010,33(1):17-20.
[7] Long Bing,Chang Xin-long,Jian Bin,et al.Analysis on the structural reliability of solid rocket motor grains[J].Advanced Materials Research,2012,503/504:953-957.
[8] 高鸣,徐廷学.固体火箭发动机药柱可靠性及寿命预估研究[J].固体火箭技术,2008,31(3):220-224.GAO Ming,XU Ting-xue.Study on reliability and life prediction of SRM grain[J].Journal of Solid Rocket Technology,2008,31(3):220-224.
[9] 李毅,田维平,董新刚,等.非线性粘弹性本构模型在固体火箭发动机装药结构完整性分析中应用[J].固体火箭技术,2018,41(1):11-17.LI Yi,TIAN Wei-ping,DONG Xin-gang,et al.Application of a nonlinear viscoelastic constitutive model in structural integrity analysis of SRM grain[J].Journal of Solid Rocket Technology,2018,41(1):11-17.
[10] Deng Bin,Xie Yan,Tang Guojin.Three dimensional structural analysis approach for aging composite solid propellant grains[J].Propellants,Explosives,Pyrotechnics,2014,39(1):117-124.
[11] Deng Bin,Tang Guo-jin,Shen Zhi-bin.Structural analysis of solid rocket motor grain with aging and damage effects[J].Journal of Spacecraft and Rockets,2015,52(2):331-339.
[12] Zhang J B,Lu B J,Gong S F,et al.Comparative analysis of creep models of a soild propellant[J].IOP Conference Series:Materials Science and Engineering,2018,359(1):12-50.
[13] Zhang Jian-bin,Ju Yu-tao,Zhou Chang-sheng.Research on creep characteristics of the double-base solid propellant[J].Advanced Materials Research,2012,591-593:1062-1066.
[14] 李东,周长省,鞠玉涛,等.双基固体推进剂药柱非线性蠕变特性实验研究[J].固体火箭技术,2008,31(5):475-479.LI Dong,ZHOU Chang-sheng,JU Yu-tao,et al.Experimental research on the nonlinear creep property of double base solid propellant grain[J].Journal of Solid Rocket Technology,2008,31(5):475-479.
[15] Bihari B K,Rao N P N,Gupta M,et al.A study on creep behavior of composite solid propellants using the kelvin-voigt model[J].Central European Journal of Energetic Materials,2017,14(3):742-756.
[16] 王永帅,董可海,张波,等.舰载导弹发动机药柱蠕变损伤研究[J].兵工自动化,2017,36(6):80-84.WANG Yong-shuai,DONG Ke-hai,ZHANG Bo,et al.A study on creep damage of a shiborne missile motor grain[J].Ordnance Industry Automation,2017,36(6):80-84.
[17] 袁军,任萍,何高让.大型固体发动机燃烧室立式贮存研究[J].固体火箭技术,2014,37(6):809-813.YUAN Jun,REN Ping,HE Gao-rang.Research on vertical storage of large-scale SRM chamber[J].Journal of Solid Rocket Technology,2014,37(6):809-813.
[18] Bills K W Jr,Wiegand J H.The application of an integrated structrual analysis to the prediction of reliability[R].Annals of Reliability and Maintainability.Columbia:Annals of Reliability and Maintainability,1970.
[19] 李高春,董可海,张勇,等.环境温度作用下固体火箭发动机药柱的累积损伤规律[J].火炸药学报,2010,33(4):19-22.LI Gao-chun,DONG Ke-hai,ZHANG Yong,et al.Cumulative damage rule of solid rocket motor grains under the influence of environmental temperature[J].Chinese Journal of Explosives & Propellants(Huozhayao Xuebao),2010,33(4):19-22.
[20] Heller R A,Singh M P,Zibdeh H.Environmental effects on cumulative damage in rocket motors[J].Journal of Spacecraft,1985,22(2):149-155.Research on Creep Effect of Solid Propellant Grain under Vertical StorageWANG Xin,GAO Ming,WU Peng,CHEN Si-tong,WANG Yu-fengChinese Journal of Explosives & Propellants,2019,42(2):160-168.The creep effect and creep damage of solid propellant grain under vertical storage were analyzed and calculated by the combination of creep experiment and ABAQUS simulation.
[2] Raouf N,Pourtakdoust S H,Abadi B A A,et al.Structural reliability analysis of solid rocket motor with ellipsoidal[J].Journal of Spacecraft and Rockets,2016,53(2):389-392.
[3] 朱卫兵.固体火箭发动机药柱结构完整性及可靠性分析[D].哈尔滨:哈尔滨工程大学,2005.ZHU Wei-bing.A calculation analysis for structural integrity and reliability of solid rocket motor grain [D].Harbin:Harbin Engineering University,2015.
[4] 唐国金,申志彬,田四朋,等.固体火箭发动机药柱概率贮存寿命预估[J].兵工学报,2012,33(3):301-306.TANG Guo-jin,SHEN Zhi-bin,TIAN Si-peng,et al.Probabilistic storage life prediction of solid rocket motor grain[J].Acta Armamentarii,2012,33(3):301-306.
[5] 刘中兵,周艳青,张兵.固体发动机低温点火条件下药柱结构完整性分析[J].固体火箭技术,2015,38(3):351-355.LIU Zhong-bing,ZHOU Yan-qing,ZHANG Bing.Structural integrity analysis on grains of solid rocket motor at low temperature ignition[J].Journal of Solid Rocket Technology,2015,38(3):351-355.
[6] 田四朋.固体火箭发动机药柱三维粘弹性响应面随机有限元分析[J].固体火箭技术,2010,33(1):17-20.TIAN Si-peng.Three-dimensional viscoelastic response surface stochastic finite element analysis on solid rocket motor grain[J].Journal of Solid Rocket Technology,2010,33(1):17-20.
[7] Long Bing,Chang Xin-long,Jian Bin,et al.Analysis on the structural reliability of solid rocket motor grains[J].Advanced Materials Research,2012,503/504:953-957.
[8] 高鸣,徐廷学.固体火箭发动机药柱可靠性及寿命预估研究[J].固体火箭技术,2008,31(3):220-224.GAO Ming,XU Ting-xue.Study on reliability and life prediction of SRM grain[J].Journal of Solid Rocket Technology,2008,31(3):220-224.
[9] 李毅,田维平,董新刚,等.非线性粘弹性本构模型在固体火箭发动机装药结构完整性分析中应用[J].固体火箭技术,2018,41(1):11-17.LI Yi,TIAN Wei-ping,DONG Xin-gang,et al.Application of a nonlinear viscoelastic constitutive model in structural integrity analysis of SRM grain[J].Journal of Solid Rocket Technology,2018,41(1):11-17.
[10] Deng Bin,Xie Yan,Tang Guojin.Three dimensional structural analysis approach for aging composite solid propellant grains[J].Propellants,Explosives,Pyrotechnics,2014,39(1):117-124.
[11] Deng Bin,Tang Guo-jin,Shen Zhi-bin.Structural analysis of solid rocket motor grain with aging and damage effects[J].Journal of Spacecraft and Rockets,2015,52(2):331-339.
[12] Zhang J B,Lu B J,Gong S F,et al.Comparative analysis of creep models of a soild propellant[J].IOP Conference Series:Materials Science and Engineering,2018,359(1):12-50.
[13] Zhang Jian-bin,Ju Yu-tao,Zhou Chang-sheng.Research on creep characteristics of the double-base solid propellant[J].Advanced Materials Research,2012,591-593:1062-1066.
[14] 李东,周长省,鞠玉涛,等.双基固体推进剂药柱非线性蠕变特性实验研究[J].固体火箭技术,2008,31(5):475-479.LI Dong,ZHOU Chang-sheng,JU Yu-tao,et al.Experimental research on the nonlinear creep property of double base solid propellant grain[J].Journal of Solid Rocket Technology,2008,31(5):475-479.
[15] Bihari B K,Rao N P N,Gupta M,et al.A study on creep behavior of composite solid propellants using the kelvin-voigt model[J].Central European Journal of Energetic Materials,2017,14(3):742-756.
[16] 王永帅,董可海,张波,等.舰载导弹发动机药柱蠕变损伤研究[J].兵工自动化,2017,36(6):80-84.WANG Yong-shuai,DONG Ke-hai,ZHANG Bo,et al.A study on creep damage of a shiborne missile motor grain[J].Ordnance Industry Automation,2017,36(6):80-84.
[17] 袁军,任萍,何高让.大型固体发动机燃烧室立式贮存研究[J].固体火箭技术,2014,37(6):809-813.YUAN Jun,REN Ping,HE Gao-rang.Research on vertical storage of large-scale SRM chamber[J].Journal of Solid Rocket Technology,2014,37(6):809-813.
[18] Bills K W Jr,Wiegand J H.The application of an integrated structrual analysis to the prediction of reliability[R].Annals of Reliability and Maintainability.Columbia:Annals of Reliability and Maintainability,1970.
[19] 李高春,董可海,张勇,等.环境温度作用下固体火箭发动机药柱的累积损伤规律[J].火炸药学报,2010,33(4):19-22.LI Gao-chun,DONG Ke-hai,ZHANG Yong,et al.Cumulative damage rule of solid rocket motor grains under the influence of environmental temperature[J].Chinese Journal of Explosives & Propellants(Huozhayao Xuebao),2010,33(4):19-22.
[20] Heller R A,Singh M P,Zibdeh H.Environmental effects on cumulative damage in rocket motors[J].Journal of Spacecraft,1985,22(2):149-155.Research on Creep Effect of Solid Propellant Grain under Vertical StorageWANG Xin,GAO Ming,WU Peng,CHEN Si-tong,WANG Yu-fengChinese Journal of Explosives & Propellants,2019,42(2):160-168.The creep effect and creep damage of solid propellant grain under vertical storage were analyzed and calculated by the combination of creep experiment and ABAQUS simulation.