Mech UCO Lect 01 Intro

Chapter 1

Introduction

ANSYS Mechanical Advanced (Using Command Objects)

1-1ANSYS, Inc. Proprietary© 2009 ANSYS, Inc. All rights reserved.

June 2009Inventory #002669

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Introduction

Training ManualA. Welcome!• Welcome to the ANSYS Mechanical Advanced (Using Command

Objects) training course!• This training class provides an overview of using Command Objects

in ANSYS Mechanical to access advanced solver functionality.• It is intended for users already familiar with ANSYS Mechanical:

– The ANSYS Mechanical GUI and analysis procedure are not coveredy phere but in the ANSYS Mechanical Introduction course

– Familiarity with ANSYS Mechanical APDL (ANSYS Parametric DesignLanguage) is helpful but not required.



Introduction

Training Manual… Course Objectives• Objectives of this training course:– Learn how to use the Mechanical APDL interface to verify and

postprocess models– Gain an understanding of APDL command syntax, as well as APDL

parameters– Explore different ways in which “Commands” objects can be used to

access advanced pre and post processing functionalityaccess advanced pre- and post-processing functionality



Introduction

Training Manual… Course Materials• The Training Manual you have is an exact copy of the slides.• Copies of the workshop files are available (upon request) from the

instructor.• Several advanced training courses are available on specific topics.

See the training course listing on the ANSYS homepage http://www.ansys.com/ under “Services > Training > Courses”

http://www.ansys.com/services/ts-courses.asp



Introduction

Training Manual… Required ANSYS Products (Licenses)• Only ANSYS Products that allow the use of Command objects inside

of ANSYS Mechanical are pertinent to this course:– ANSYS Multiphysics– ANSYS Mechanical– ANSYS Structural– ANSYS Professional

• Please note that the following ANSYS Products cannot use Command objects and are not applicable for this course:– ANSYS DesignSpace– ANSYS DesignSpace



Introduction

Training ManualB. Motivation for this Course• ANSYS Mechanical offers users unparalleled ease of use with

powerful nonlinear, dynamics, thermal, and magnetostatic analysis capabilities.– Tight integration with many CAD systems and ANSYS DesignModeler,

including ability to update analysis based on changes in CAD geometry– Robust meshing algorithms and automatic contact detection– Using geometry-centric approach simplifies steps for analyst, and it

allows for complete automation of analysis procedure



Sample Autodesk Inventor Assembly

Introduction

Training Manual… Motivation for this Course• However, there may be situations where users may wish to access

the underlying mesh and/or additional solver functionality, including but not limited to the following:– Adding special elements, such as spring-damper bearing elements– Selection of special solvers or solution techniques– Interpolating results from a separate, different mesh– Composite beam, shell, or solid material definition– Rate-dependent or special nonlinear constitutive models– Acoustic or electromagnetic analyses

• The use of Commands objects makes the above possible!– APDL (ANSYS Parametric Design Language) is a powerful scripting ( g g g ) p p g

language



Introduction

Training ManualExample Applications – Nonlinear Materials• In addition to metal plasticity and hyperelasticity available in

Mechanical, the use of “Commands” objects allows users to include creep, viscoelasticity, and other nonlinear constitutive models– Creep buckling analysis shown below, with equivalent creep strains on

the left and deformation vs. time on the right



Introduction

Training ManualExample Applications – Advanced Techniques• Advanced analysis techniques, such as cyclic symmetry solution

method, are accessible with “Commands” objects– Only a sector (below left) is modeled, but results for the full 360° model

can be postprocessed– Submodeling, substructuring, use of general axisymmetric elements are

other methods that can be used with “Commands” objects



Introduction

Training ManualExample Applications - Composites• Composite or layered elements can also be defined in Mechanical– Reinforcement elements and other speciality elements can also be added

using “Commands” objects



Introduction

Training ManualExample Applications – Other Physics• Acoustics and other physics may also be solved using a Mechanical

model and “Commands” objects• Coupled-field elements, including piezoelectric, piezoresistive, and

electrostatic-structural, can be solved



Mech UCO Lect 01 Intro

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