Numerical simulation of earth pressure distribution in chamber of EPB shield by finite element method EPB盾构机土仓压力分布有限元数值模拟
For the interior ballistic problems of balance gun with low and high pressure chamber, a novel method using numerical simulation and experiment is proposed in this paper. 针对高低压室平衡炮内弹道问题,提出了数值模拟与试验相结合的研究方法。
Several stochastic distributions of chamber pressure have been simulated by mixed congruence method and conversion sampling method. SRM chamber structure mechanics response under the action of normal distribution chamber pressure has been analyzed by used of Monte Carlo stochastic finite element method. 采用混合同余法与变换抽样法对固体火箭发动机纤维缠绕燃烧室压强的多种随机分布进行了模拟,并结合蒙特卡罗随机有限元方法分析了该结构在正态分布压强作用下的力学响应。
Results The average numerical value pressure of feeling the air chamber pressure by hand is higher than the method of using Air Chamber Pressure Measurer to measure the pressure ( P < 0.01). 结果手指捏感测压法均值高于套囊压力表测压法(P<0.01)。