Different types of information units of cad, Mechanical Engineering

Different types of information units of CAD

There are different types of information units defined. They are :

Class 0

The geometric primitives needed for describing 2- and 3-dimensional objects such as points, lines, circles, parabolas, planes and surfaces. 

Class 1

Complex geometric entities for defining complex curves, complex solids, shells, faces and so on.

Class 2

Graphical aids to map product information onto technical presentations. These aids include view block definitions, block definitions, line fonts, cross hatching, characters for defining symbols and so on.

Class 3

Grouping mechanisms to assist the mathematical operations needed for the manipulation of the design objects. Typical representations are coordinate transformations, scalar series, general matrices, tabulated functions, physical quantities, material properties and so on.

Class 4

Descriptive aids to represent diameters, angles, labels, text, cross-hatching, surface finishes and so on.

Class 5

Elements defining the structural relations such as calling block, group, attribute and homogeneous entities.

Class 6

Connecting elements to describe logic between the elements of any class.

Class 7

FEM elements to build  the FEM model. Typical elements are finite elements, model for an element, computations, definition of a computation, loads, damping, Eigenvalue, knot renumbering and so on. 

Class 80

Gives the user the possibility of defining his own elements.

Class 99

Management aids to structure SET files. They include SET header, ensemble header as well as 'End' specifier for an ensemble and a 'SET'.


Posted Date: 7/26/2013 2:08:16 AM | Location : United States

Related Discussions:- Different types of information units of cad, Assignment Help, Ask Question on Different types of information units of cad, Get Answer, Expert's Help, Different types of information units of cad Discussions

Write discussion on Different types of information units of cad
Your posts are moderated
Related Questions
Net force acting on particle of mass 2 kg is 10N in north direction.At t=o, particle was moving eastwards with 10m/s. Find displacement and velocity of particle after 2 seconds.

Complaints of Engine Starting: If there is a problem related to the starting of the bike, it can be due to mechanical as well as electrical reasons. The possible reasons could be

Find the twist of a circular hollow shaft: Discover the twist per metre length of a circular hollow shaft having 120 mm outer diameter and 90 mm inner diameter, respectively,

matlab programme for carnot cycle

Determine net work done: 5 m 3   of air at 2bar, 27 0 C is compressed to 6bar pressure following PV 1. 3   = constant. It is expanded subsequently adiabaticall

Ratio of applied stress and yield stress: What should be the ratio of applied stress, s, to yield stress s Y in a large thin plate so that plastic spread along lint of crack

teori heat transfer conduction