基于实测数据的固体火箭发动机粘接界面振动损伤分析
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摘要
为研究某立贮式固体火箭发动机在海洋值班条件下推进剂/衬层粘接界面的损伤情况,对固体火箭发动机在实际振动载荷与重力耦合作用下的疲劳损伤进行了评估。对监测的发动机振动数据进行了预处理;利用有限元软件先后模拟了发动机固化降温过程和值班振动过程;运用三点雨流循环计数和Miner理论对粘接界面危险点处累积损伤值进行了计算。结果表明,固化降温过程中,药柱两端与人工脱粘层脱开,推进剂/衬层粘接界面剪应力变化过程可由幂函数τ=a·t~b+c表示;以固化降温结果作为原始条件,振动初始时刻粘接界面剪应力发生剧烈变化,约15 s后剪应力稳定变化,最大值点位于界面头部;在某特定海情下连续值班一年时,重力和振动载荷造成的某固体发动机寿命损伤为14.84%。
In order to study the damage of the propellant/liner bonding interface of a vertical storage solid rocket motor under ocean conditions,the fatigue damage of the solid rocket motor under the actual vibration loading and gravity coupling has been evaluated. The monitored motor vibration data has been pre-processed. The finite element software was used to simulate the motor curing,cooling process and the vibration process. The cumulative damage values at the dangerous points of the bonding interface have been calculated using three-point rain flow cycle counting and Miner theory. The results show that during the curing and cooling process,both ends of the column are separated from the artificial debonding layer,and the shear stress change process of the propellant/liner bonding interface can be represented by the power function τ = a·t~b+c. With the curing temperature changed to the original condition,the shear stress of the bonding interface changes sharply at the initial moment of vibration,and the shear stress changes stably after about 15 s. The maximum point is located at the interface header. The damage of a solid rocket motor caused by gravity and vibration loads is for a continuous duty in a specific marine environment.
In order to study the damage of the propellant/liner bonding interface of a vertical storage solid rocket motor under ocean conditions,the fatigue damage of the solid rocket motor under the actual vibration loading and gravity coupling has been evaluated. The monitored motor vibration data has been pre-processed. The finite element software was used to simulate the motor curing,cooling process and the vibration process. The cumulative damage values at the dangerous points of the bonding interface have been calculated using three-point rain flow cycle counting and Miner theory. The results show that during the curing and cooling process,both ends of the column are separated from the artificial debonding layer,and the shear stress change process of the propellant/liner bonding interface can be represented by the power function τ = a·t~b+c. With the curing temperature changed to the original condition,the shear stress of the bonding interface changes sharply at the initial moment of vibration,and the shear stress changes stably after about 15 s. The maximum point is located at the interface header. The damage of a solid rocket motor caused by gravity and vibration loads is for a continuous duty in a specific marine environment.
引文
[1]张波,董可海,邢耀国,等.舰载值班对立式贮存发动机粘接界面损伤研究[J].推进技术,2017,38(8):1863-1869.ZHANG Bo,DONG Kehai,XING Yaoguo,et al.Research on bonding interface damage of vertical storage motor by shipboard[J].Journal of Propulsion Technology,2017,38(8):1863-1869.
[2]曲凯,张杰,张旭东.舰船运动对固体火箭发动机粘接界面疲劳损伤研究[J].兵工学报,2012,33(8):986-990.QU Kai,ZHANG Jie,ZHANG Xudong.Research on effects of ship motion on interface fatigue damage of solid rocket motor[J].Acta Armamentarii,2012,33(8):986-990.
[3]XING Yaoguo,QU Kai,XU Junsong,et al.Life prediction of shipborne solid rocket motor under the ship swing motion[J].Journal of Propulsion Technology,2011,32(1):32-35.
[4]Y1 lmaz O,Kuran B,zgen G O.Reliability assessment of solid-propellant rocket motors under storage and transportation loads[J].Journal of Spacecraft and Rockets,2017,54(6):1356-1366.
[5]李金飞.舰载导弹固体发动机药柱老化与损伤研究[D].烟台:海军航空工程学院,2016.LI Jinfei.Research on aging and damage of solid motor grain of shipboard missile[D].Yantai:Naval Aeronautical and Astronautical University,2016.
[6]曲凯,张旭东.海洋环境下舰载固体火箭发动机运动模型[J].系统仿真学报,2013,25(1):164-169.QU Kai,ZHANG Xudong.Model of shipborne solid rocket motor motion in marine environment[J].Journal of System Simulation,2013,25(1):164-169.
[7]王济.MATLAB在振动信号处理中的应用[M].知识产权出版社,2006.WANG Ji.Application of MATLAB in vibration signal processing[M].Intellectual Property Publishing House,2006.
[8]孙苗钟.基于MATLAB的振动信号平滑处理方法[J].电子测量技术,2007,30(6):55-57.SUN Miaozhong.Smooth processing methods of vibration signal based on MATLAB[J].Electronic Measurement Technology,2007,30(6):55-57.
[9]张春龙.固体发动机粘接界面受载状态监检测技术与方法研究[D].烟台:海军航空工程学院,2015.ZHANG Chunlong.Research on monitoring technology and method of load state monitoring of solid rocket motor bonding interface[D].Yantai:Naval Aeronautical and Astronautical University,2015.
[10]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 Gaorang.Research on vertical storage of large-scale SRM chamber[J].Journal of Solid Rocket Technology,2014,37(6):809-813.
[11]宗路航,杜聪,卢山,等.固体火箭发动机药柱加压固化仿真[J].固体火箭技术,2015,38(5):653-656.ZONG Luhang,DU Cong,LU Shan,et al.Simulation on pressure cure of solid rocket motor grain[J].Journal of Solid Rocket Technology,2015,38(5):653-656.
[12]王为国,寿比南,杨国义.JB4732-1995《钢制压力容器-分析设计标准》中内压回转壳体厚度计算公式的简单修正[J].化工设备与管道,2006,43(1):1-3.WANG Weiguo,SHOU Binan,YANG Guoyi.Modification of equations in JB4732-1995 for rounded shell subjected to internal pressure[J].Process Equipment&Piping,2006,43(1):1-3.
[13]陆明万,寿比南,杨国义.疲劳分析中变幅载荷的循环计数方法[J].压力容器,2012,29(11):25-29.LU Mingwan,SHOU Bi nan,YANG Guoyi.Cycle counting methods of variable amplitude loading for fatigue analysis[J].Pressure Vessel Technology,2012,29(11):25-29.
[2]曲凯,张杰,张旭东.舰船运动对固体火箭发动机粘接界面疲劳损伤研究[J].兵工学报,2012,33(8):986-990.QU Kai,ZHANG Jie,ZHANG Xudong.Research on effects of ship motion on interface fatigue damage of solid rocket motor[J].Acta Armamentarii,2012,33(8):986-990.
[3]XING Yaoguo,QU Kai,XU Junsong,et al.Life prediction of shipborne solid rocket motor under the ship swing motion[J].Journal of Propulsion Technology,2011,32(1):32-35.
[4]Y1 lmaz O,Kuran B,zgen G O.Reliability assessment of solid-propellant rocket motors under storage and transportation loads[J].Journal of Spacecraft and Rockets,2017,54(6):1356-1366.
[5]李金飞.舰载导弹固体发动机药柱老化与损伤研究[D].烟台:海军航空工程学院,2016.LI Jinfei.Research on aging and damage of solid motor grain of shipboard missile[D].Yantai:Naval Aeronautical and Astronautical University,2016.
[6]曲凯,张旭东.海洋环境下舰载固体火箭发动机运动模型[J].系统仿真学报,2013,25(1):164-169.QU Kai,ZHANG Xudong.Model of shipborne solid rocket motor motion in marine environment[J].Journal of System Simulation,2013,25(1):164-169.
[7]王济.MATLAB在振动信号处理中的应用[M].知识产权出版社,2006.WANG Ji.Application of MATLAB in vibration signal processing[M].Intellectual Property Publishing House,2006.
[8]孙苗钟.基于MATLAB的振动信号平滑处理方法[J].电子测量技术,2007,30(6):55-57.SUN Miaozhong.Smooth processing methods of vibration signal based on MATLAB[J].Electronic Measurement Technology,2007,30(6):55-57.
[9]张春龙.固体发动机粘接界面受载状态监检测技术与方法研究[D].烟台:海军航空工程学院,2015.ZHANG Chunlong.Research on monitoring technology and method of load state monitoring of solid rocket motor bonding interface[D].Yantai:Naval Aeronautical and Astronautical University,2015.
[10]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 Gaorang.Research on vertical storage of large-scale SRM chamber[J].Journal of Solid Rocket Technology,2014,37(6):809-813.
[11]宗路航,杜聪,卢山,等.固体火箭发动机药柱加压固化仿真[J].固体火箭技术,2015,38(5):653-656.ZONG Luhang,DU Cong,LU Shan,et al.Simulation on pressure cure of solid rocket motor grain[J].Journal of Solid Rocket Technology,2015,38(5):653-656.
[12]王为国,寿比南,杨国义.JB4732-1995《钢制压力容器-分析设计标准》中内压回转壳体厚度计算公式的简单修正[J].化工设备与管道,2006,43(1):1-3.WANG Weiguo,SHOU Binan,YANG Guoyi.Modification of equations in JB4732-1995 for rounded shell subjected to internal pressure[J].Process Equipment&Piping,2006,43(1):1-3.
[13]陆明万,寿比南,杨国义.疲劳分析中变幅载荷的循环计数方法[J].压力容器,2012,29(11):25-29.LU Mingwan,SHOU Bi nan,YANG Guoyi.Cycle counting methods of variable amplitude loading for fatigue analysis[J].Pressure Vessel Technology,2012,29(11):25-29.