In the paper , i employ the theory of finite element of steel frames and monte carlo method , describe the production method of the random variable of the average - distribution n ( 0 , 1 ) and write program with fortran 90 . the random numbers is tested in many ways for its quality ; the result is good . they can produce random with all kinds of probability distribution 本文以半刚性连接的钢框架的有限元理论和蒙特卡洛随机模拟理论为基础,描述了均匀分布的n ( 0 , 1 )随机数的产生数学分法,并编制了计算机程序,对由软件产生的均匀分布序列的随机数性能进行各种检验,检验成果是良好的,可用于产生各种概率分布的随机变量。
In this dissertation , the theories of finite element and fatigue strength are discoursed systematically . under the direction of these theories , using of msc / nastran and msc / fatigue software , a bump auto which pipes concrete is analyzed on static strength , mode , time domain strength , frequency domain strength and fatigue strength 本论文比较系统地论述了有限单元法和疲劳可靠性分析等基本理论,并在这些理论指导下,利用msc nastran软件和msc fatigue软件,对水泥输送泵车进行了静强度分析、模态分析、时域动强度分析、频域动强度分析和疲劳寿命分析。
In chapter 5 , the structure of moving parts is designed according to the technical requirements . then the moving parts " dynamic characters are analyzed with theory of finite element , and using the analysis result of fluid - solid coupling theory , we may decide whether the dynamic characters have meted the requirement , if not , modify them again 第五章根据技术要求对振动台运动部件的结构进行设计,然后运用有限元法分析运动部件的动态特性,并利用流固耦合理论分析的结果,判别其动态特性是否达到设计要求,并予以修正。