The logical extension of discrete mass systems is one of an infinite number of masses. In the limit, this is a continuous system. Take the generalized beam-column as a generic representation:

Summarizing what we've looked at in elasticity, we have: 15 equations in 15 unknowns 3 equilibrium -6 strains -6 strain-displacement -3 displacements

As we've previously noted, we may often want to describe a structure in various axis systems. This involves... Transformations (Axis, Deflection, Stress, Strain, Elasticity Tensors) e.g., loading axes material principal axis Figure 7.1 Unidirectional Composite with Fibers at an Angle

Sources of Stresses and Strains Depends on type of structure Aircraft

Recall the definition of stress: o stress =\intensity of internal force at a point\ Figure 3.1 Representation of cross-section of a general body

人类有史以来就向往着能够自由飞行。古老的神话故事诉说着人类早年的飞行梦,而梦想的飞行方式都 是原地腾空而起,像现代直升机那样既能自由飞翔又,能悬停于空中,并且随意实现定点着陆。例如哪 阿拉伯人的飞毯,希腊神的战车,都是垂直起落飞行器

16810(16682) Engineering Design and Rapid Prototyping Design optimization - Structural Design Optimization Instructor(s) Prof, olivier de Weck Dr. Il Yong Kim

Introduction to Manufacturing a Manufacturing is the physica/ realization of the previously designed parts Metrics to assess the\ performance\of mfg Quality does it meet specifications?

Plan for Today CAD Lecture(ca 50 min) CAD History, Background Some theory of geometrical representation SolidWorks Introduction(ca. 40 min) Follow along step-by-step Create CAD model of your part(ca. 90 min) Work in teams of two Use hand sketch as starting point

IG Aln Happy New Year 2004 UHF ndio REM telecom HW \ Front SSPA Mars Rovers mEr-a \ Spirit landed Sat 1/3 11 35pm ET Body structure (Warm Electronics BoxWeb).Refhttp://marsrovers.jplnasagov (imAgeistakenfromNasa'SWebsitehttp://www.nasa.gov.) We won' t be designing a mars rover this iap, but You will learn about the design process and fundamenta