美国麻省理工大学：《结构分析与设计技术》教学资源（讲义）CQ18.pdf_大学文库

文档信息

资源类别：文库
文档格式：PDF
文档页数：2
文件大小：28.04KB
团购合买：点击进入团购

内容简介

Why is the element stiffness matrix singular in a finite element formulation? 1. So that it can accomodate rigid element dis- placements without introducing spurious nodal 2 Because we made a mistake in the formula- tion the stiffness matrix should not be sin- g 3. Because we havent enforced any displace ment boundary conditions(it's a variational approach after all) Statement(1)

刷新页面文档预览

Concept question Why is the element stiffness matrix singular in a finite element formulation? 1. So that it can accomodate rigid element dis- placements without introducing spurious nodal 2 Because we made a mistake in the formula- tion the stiffness matrix should not be sin- g 3. Because we havent enforced any displace ment boundary conditions(it's a variational approach after all) Statement(1) Statement(2) Statement (3) Statements(1) and (3 DKDU

++++ ++++ ++++ ++++ ++++ Concept Question ++++ ++++ ++++ ++++ ++++ Why is the element stiffness matrix singular in a finite element formulation? 1. So that it can accomodate rigid element displacements without introducing spurious nodal forces. 2. Because we made a mistake in the formulation, the stiffness matrix should not be singular. 3. Because we haven’t enforced any displacement boundary conditions (it’s a variational approach after all) • ++++ Statement (1) • ++++ Statement (2) • ++++ Statement (3) • ++++ Statements (1) and (3) • ++++ DKDU

The correct answer is

The correct answer is ++++

已到末页，全文结束

刷新页面下载完整文档

VIP每日下载上限内不扣除下载券和下载次数；
按次数下载不扣除下载券；
注册用户24小时内重复下载只扣除一次；
顺序：VIP每日次数-->可用次数-->下载券；