Chapter 3 Design Studies
Design Studies
A model is usually subjected to different service environments and operational conditions
during its life. It is therefore important to consider all possible sc
Output of Frequency Analysis
When plotting displacements (mode shapes), directions X, Y, and Z
refer to the global coordinate system. If you choose a reference
geometry, these directions refer to the
Using a uniform rise or drop in temperature for the whole model.
Importing a temperature profile from a steady state or transient thermal analysis.
Importing a temperature profile from COSMOSFloWor
Chapter 2 Analysis Background
Effect of Loads on Frequency Analysis
When building the geometry of a model, you usually create it based on the original
(undeformed) shape of the model. Some loads, like
The following quantities do not use reference geometry:
P1
= Normal stress in the first principal direction (largest)
P2
= Normal stress in the second principal direction
P3
= Normal stress in the thi
Linearity Assumption
all materials in the model comply with
Hookes Law, that is Stress is directly
proportional to Strain.
Nonlinear
analysis
Nonlinear
analysis
the induced displacements are small
e
Chapter 2 Analysis Background
In a continuous body, you can view the stress at a point as follows:
Imagine an arbitrary plane that cuts through the body at that point,
Consider an infinitesimally sm
Material properties. You must define the Youngs Modulus (also called the
Modulus of Elasticity). Poissons Ratio is assumed to be zero if not defined. In
addition, you need to define the density when
Chapter 2 Analysis Background
Linearized Buckling Analysis
Models with thin parts tend to buckle under axial loading. Buckling can be defined as the
sudden deformation which occurs when the stored mem
Output of Linearized Buckling Analysis
When plotting displacements (mode shapes), directions X, Y, and Z
refer to the global coordinate system. If you choose a reference
geometry, these directions ref
3
Design Studies
The concept of design studies lies at the heart of the operation of COSMOSWorks. In this
chapter, you learn about the following topics:
Design Studies. Understand what a design study
Required Input for Thermal Analysis
To perform thermal analysis, you need the following:
Meshed model. You must mesh the model before running the analysis. The Nodeto-Node contact condition results i
Chapter 2 Analysis Background
Face 2
Face 4
The middle area of face 1 is
totally blocked against
radiation from face 2
Face 3
Face 1
Considering blocking in radiation by participating faces
Open Versu
Chapter 2 Analysis Background
Radiation
Radiation is the thermal energy emitted by bodies in the form of electromagnetic waves.
All bodies with temperatures above the absolute zero emit thermal energy
Chapter 2 Analysis Background
a pressure of 250 x 2.3 = 575 psi on face 2 and face 3
If the critical load factor is negative, then buckling occurs only if you
apply all loads in the opposite directio
Surface- to-Surface Radiation
The rate of thermal energy exchange between two radiating faces depends on their
temperatures, view factors, and emissivities.
Radiation View Factors
View factors, also k
Convection
Convection is the heat transfer mechanism by which heat energy transfers between a solid
face and an adjacent moving fluid (or gas). Convection involves the combined effects of
conduction a
Chapter 2 Analysis Background
Output of Static Analysis
By default, directions X, Y, and Z refer to the global coordinate
system. If you choose a reference geometry, these directions refer to
the sele
Chapter 2 Analysis Background
Linear Static Analysis
When loads are applied to a body, the body deforms and the effect of loads is transmitted
throughout the body. The external loads induce internal f
Chapter 1 COSMOSWorks Fundamentals
Working with Assemblies
When working with assemblies, note the following:
Make sure that automatic loading of components as lightweight in Tools,
Options, System Op
Basic Concept of Analysis
COSMOSWorks uses the Finite Element Method (FEM). FEM is a numerical technique
for analyzing engineering designs. FEM is accepted as the standard analysis method due
to its g
Thermal Studies
Thermal studies calculate temperatures, temperature gradients, and heat flow based on
heat generation, conduction, convection, and radiation conditions. Thermal studies can
help you av
Chapter 1 COSMOSWorks Fundamentals
Design Studies
A model is usually subjected to different service environments and operational conditions
during its life. It is therefore important to consider all p
1
COSMOSWorks Fundamentals
This chapter presents information about the basic concepts and terminology used in
COSMOSWorks. You will learn about the following topics:
What is COSMOSWorks?. Introduces C
Chapter 1 COSMOSWorks Fundamentals
COSMOSWorks formulates the equations governing the behavior of each element taking
into consideration its connectivity to other elements. These equations relate the
Chapter 1 COSMOSWorks Fundamentals
What is COSMOSWorks?
COSMOSWorks is a design analysis system fully integrated with SolidWorks.
COSMOSWorks provides one screen solution for stress, frequency, buckli
Introduction
The COSMOSWorks Software
COSMOSWorks is a design analysis automation application fully integrated with
SolidWorks. This software uses the Finite Element Method (FEM) to simulate the
worki
System Requirements
For the most recent information about system requirements, refer to the information
provided in the Read This First sheet included in the box that contains the
COSMOSWorks software