摘要
为了确定设备抗冲击阈值,基于主从系统耦合振动理论,以船用增压锅炉、齿轮箱为研究对象,将船体与设备的一体化抗冲击数值实验的数值统计特征进行分析。通过大量算例结果分析,提出将冲击作用下设备应力响应标准差作为设备失效判据,并给出了设备冲击作用下应力响应标准差最大值计算经验公式。
Based on the theory for coupled vibrations of master-slave systems, by choosing shipboard supercharged boilers and gear cases as research objects, the numerical statistical characteristics of numerical experiments for ship hull and equipment integrated analysis were discussed to determine the anti-shock threshold values of shipboard equipments. The standard deviations of stress values for equipments subjected to shock load were put forward as the failure criteria of shipboard equipments through large numbers of exemplification analysis. And an empirical formula of the maximum value of standard deviation was given.
出处
《爆炸与冲击》
EI
CAS
CSCD
北大核心
2009年第4期 375-379,共5页
Explosion and Shock Waves
基金
国际科技合作项目(2007DFR80340)
国家自然科学基金项目(50779007,50809018)
国家自然科学基金青年科学基金项目(50809018)
中国博士后科学基金特别项目(200801104)
哈尔滨市科技创新专项基金项目(RC2008QN013001)
关键词
固体力学
抗冲击阈值
一体化分析
舰用设备
solid mechanics
anti-shock threshold
integrated analysis
shipboard equipment