水面舰艇甲板设备抗冲击设计谱分析
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摘要
针对动态设计分析方法(DDAM)评估舰艇设备抗冲击性能与水下非接触爆炸条件联系不够紧密的不足,利用水面舰艇水下非接触爆炸数值仿真,得到不同工况下水面舰艇甲板设备垂向响应及冲击反应谱;结合联邦德国军舰建造规范BV043/85规定的正负三角波作为加载波形,加载到舰船甲板安装设备等效动力模型上,计算得到不同安装质量设备的甲板基础冲击反应谱,作为甲板安装设备抗冲击设计谱值。得到的抗冲击设计谱规律正确,数值合理。
Owing to the Dynamic Design Analysis Method(DDAM) being lack of close correlation with the condition of non-contact underwater explosion,the shipboard shock environment of non-contact underwater explosion was adopted for numerical simulation with ABAQUS program to obtain the shock response in vertical direction and its shock spectrum of the different mass of shipboard equipments under different working conditions.The plus-minus triangular loading wave proposed by the German Criterion BV043/85 was used as carrier wave to load on equivalent dynamic model of deck equipment for calculating out the basic shock waves which were taken as the design values of spectrum.The obtained design spectrum had the correct law and suggested rational value.
Owing to the Dynamic Design Analysis Method(DDAM) being lack of close correlation with the condition of non-contact underwater explosion,the shipboard shock environment of non-contact underwater explosion was adopted for numerical simulation with ABAQUS program to obtain the shock response in vertical direction and its shock spectrum of the different mass of shipboard equipments under different working conditions.The plus-minus triangular loading wave proposed by the German Criterion BV043/85 was used as carrier wave to load on equivalent dynamic model of deck equipment for calculating out the basic shock waves which were taken as the design values of spectrum.The obtained design spectrum had the correct law and suggested rational value.
引文
[1]汪玉,华宏星.舰船现代冲击理论及应用[M].北京:科学出版社,2005.
[2]O′Hara G J.Effect upon shock spectra of the dynamicreaction of structures[R].AD209366,1998.
[3]赵应龙,何琳,吕志强.应用DDAM进行船舶浮筏隔振装置抗冲击计算[J].工程力学,2007,24(4):159-163.
[4]陈海龙,姚熊亮,张阿漫,等.船用典型动力设备抗冲击性能评估研究[J].振动与冲击,2009,28(2):45-50.
[5]GJB1060.1-91舰船环境条件要求机械环境[S].北京:国防科学技术工业委员会,1991.
[6]O′hara G J.Interi m design values for shock design ofshipboard equipment[R].AD348861,1964.
[7]Chopra A K.结构动力学理论及其在地震工程中的应用[M].谢礼立,吕大刚译.北京:高等教育出版社,2005.
[8]尹群.水面舰船设备冲击环境与结构抗冲击性能研究[D].南京:南京航空航天大学,2006.
[9]傅志方,华宏星.模态分析理论与应用[M].上海:上海交通大学出版社,2000,25-33.
[10]BV043舰艇建造规范—冲击安全性[S].1989.
[2]O′Hara G J.Effect upon shock spectra of the dynamicreaction of structures[R].AD209366,1998.
[3]赵应龙,何琳,吕志强.应用DDAM进行船舶浮筏隔振装置抗冲击计算[J].工程力学,2007,24(4):159-163.
[4]陈海龙,姚熊亮,张阿漫,等.船用典型动力设备抗冲击性能评估研究[J].振动与冲击,2009,28(2):45-50.
[5]GJB1060.1-91舰船环境条件要求机械环境[S].北京:国防科学技术工业委员会,1991.
[6]O′hara G J.Interi m design values for shock design ofshipboard equipment[R].AD348861,1964.
[7]Chopra A K.结构动力学理论及其在地震工程中的应用[M].谢礼立,吕大刚译.北京:高等教育出版社,2005.
[8]尹群.水面舰船设备冲击环境与结构抗冲击性能研究[D].南京:南京航空航天大学,2006.
[9]傅志方,华宏星.模态分析理论与应用[M].上海:上海交通大学出版社,2000,25-33.
[10]BV043舰艇建造规范—冲击安全性[S].1989.
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