Solid Edge ST4 Event: Session 214 Getting the Most Out of Solid Edge Simulation by Ronnie Conerly

© Siemens AG 2011. All Rights Reserved.

Solid Edge Simulation – Overview


Siemens PLM SoftwarePage 2

Solid Edge. Design better.

Speaker Bio: Ronnie Conerly

Background:

Started with Intergraph in the Mechanical CAD/CAE division

With Solid Edge team from initial inception

Prior Product Manger for Assembly and Insight

24 years as a CAD/CAE consultant and involved in the software

development process

Areas of Expertise:

Finite Element Analysis

Software development process

Plastic Injection and Blow molding design and Mfg

Personal interests:

All outdoor activities (kayaking, hunting, fishing, etc.)




Executive Summary

Today’s Topics:

Simulation Express

Solid Edge Simulation

Basic Concepts

Simulation of Parts

Simulation Geometry in Assembly

Analysis of Sheet Metal parts in Assembly

Analysis of a Frame Model

Key Takeaways:

Basic Understanding of Solid Edge Simulation Capabilities

How to Define and Complete Simulations of Parts, Assemblies, and

Frames




Simulation Express

Simulation Express is free and part of Standard Solid Edge

Limited to Part and Sheet Metal environments

Single Command/Interface for defining a basic study

Single Studies Only

Stress or Modal Analysis

Limited to Force or Pressure loads

Limited Results Display




Solid Edge Simulation

SE-Simulation provides a robust set of tools to analyze a product design’s structural

integrity.

Is the design strong enough?

Is another design stronger, and if so, how much stronger?

Available with Solid Edge Premium or Add On License to Classic/Foundation

Simulation is integrated into the core interface of Solid Edge and available to

designers/engineers/analysts.

Core technologies include FEMAP and NX Nastran

Simulation supports a variety of model types.

Solid mesh for thick type parts

Shell mesh for sheet metal or thin parts

United Bodies (mixed types or not)

Assemblies

Frames/Beams




Basic Concepts - Continued

Simulation includes a variety of analysis types

Linear Static

Normal Modes

Buckling

Static Modal Buckling




Basic Workflow in Solid Edge Simulation

Defining Geometry/Model Preparation

Design (Sync or Ordered)

Construction Surfaces

Simplified Parts

Assemblies/Simulation Geometry

Material Properties/Thickness (can override at Assembly level)

Creating/Defining a Study

Application of Boundary Conditions (Loads/Constraints) on Geometry

Meshing and Possible Mesh Refinement

Solving and Reviewing Results




Simulation Options

With Simulation there are a variety of options.

These are global options, not per document.

Graphic Symbol Colors

Symbol Size/Spacing

Results Output




Simulation Starts with a Study Definition

Simulation starts with defining a study.

Study types include static, modal, or buckling.

Multiple studies per document if desired

Mesh Types include solids, surface, or united

bodies

Advanced Options

Studies are shown on Simulation tab in EdgeBar.

Note Study with collectors

Collectors get populated with objects

Show/Hide/Delete/Copy/Edit




Viewing Status of a Study

Study Definition has status indicator

Geometry/Material Definition

Loads/Constraints

Mesh

Solve/Results

Color Coded to denote state of condition

Geometry/Material

Loads/Constraints

Mesh

Solve/Results




Applying Boundary Conditions

Simulation offers a variety of load types

Options for Face/Edge/Point/Feature

Simulation offers a variety of constraint types

Defined Degrees of Freedom (DOF) that are

fixed

Shells have 6 DOF, Solids have 3 DOF




Meshing

Simulation provides a variety of meshes and

options.

Best results are when the mesh is refined at the

areas of high stress concentration.

Subjective mesh is uniform and has a slider for

coarser or finer meshes.

Coarser is faster but not as accurate.

Finer is slower but more accurate.

Options available for setting mesh sized on

edges, surfaces, or bodies

Good practice

Start with uniform “coarse” mesh and solve

Find stress concentration points

Refine the mesh in that area




Solving and Reviewing Results

Results has a unique/separate ribbon bar for

viewing results

Variety of options for results viewing

Probe

Contour Plots/Color Bar

Min/Max Markers

Deformation Display Control

Animation

Reports

Data Selection




Simulation with Assemblies

Assemblies can also be analyzed with Solid Edge Simulation

Workflow analyzing Assemblies is similar to Part with exceptions:

Selection of what occurrences are in the study for solving

Must define how components interact with each other

Dissimilar meshes not connected to each other for solving

OPTIONAL is creating Simulation Geometry in Assembly

OPTIONAL is overriding material and thickness properties

New Frame Analysis using Beam Elements




Using Assembly Connectors

Assembly Connectors define the

interaction between multiple components

in the Assembly

Auto or Manual Creation commands

Bolted Connections

Edge to Face/Edge connections

ST4 has improvements in the display of

connectors

Better Source/Target symbols

Symbols only displayed where part

geometry overlaps

Target Face

Source Face

Connector Symbols




Assembly Connector – Glue/No Penetration Options

Two Options with assembly connectors

Glue

No Penetration

Solution is different for each option

Glue locks relative motion of the

components when they come in contact

No Penetration allows relative motion

between componentsGlue Option

No Penetration Option




Creating Simulation Geometry in Assembly

New in ST4 is the ability to create simulation geometry in the

assembly document.

Copy surface or solid geometry from occurrences

Create midsurfaces from sheet metal parts

Modification commands to prepare geometry for analysis

Can use simplified or designed parts

Great when parts are read-only




Simulation of Sheet Metal in Assembly

Assembly Connectors are still needed to

define the interaction between occurrences.

Example: Applying a load to the housing will

distribute the load across the connectors to

the top frame.




Simulation of Sheet Metal in Assembly

Let’s look at the results

Animate

Max Top Plate VM stress is 17,394 psi

Max Bottom Plate VM stress is 18,917 psi

Well below Yield Stress

From previous runs

100 lbf loads yields 17,394 psi






Introduction to Beams

Typically used for long slender

components/frames where the cross section is

relatively small compared to the length

Trusses, cranes, bridges, tables

I-Beams, c-channel, T-s, Square tubing

Beam elements are 1-D linear elements

Simpler representations than shells or solid

elements

Faster solve time compared to shells/solids




Standard Workflow for Beam Simulation

Open up an assembly with Frames

Go into Frame Environment

Create a new Study using Beam option

Select Frames to add to the study (this

creates Beam Curves)

Apply Loads/Constraints

Mesh and solve

Beam

Curves

Curves

and BCs

Frames




Reviewing Beam Results

Based on 500 lb load, Max Combined

Stress is 9290 psi and total displacement

is .63 in

Let’s add 2 ea 200 lbf loads as shown

below using xyz components

Resolve

Stress now 9455 psi

Beam

Diagram




Conclusions

Solid Edge simulation has a robust set of tools for you to analyze your designs.

Great for parts, sheet metal parts, assemblies, and frames

Extensive set of commands for prepping a model for analysis

Integrated interface built into the Solid Edge interface

Core technologies include FEMAP and NX Nastran

For more information go to

http://www.plm.automation.siemens.com/en_us/products/velocity/solidedge/ov

erview/add_on_apps/simulation.shtml

Thanks and have a good day!

http://www.plm.automation.siemens.com/en_us/products/velocity/solidedge/overview/add_on_apps/simulation.shtml






Backups




Graphics for Product Name Treatments




Siemens Accent Color Palette

(Main Industry Automation accents boxed in white)

Yellow

255/204/0

255/221/68

255/238/102

255/250/150

255/250/190

Blue

0/51/153

51/102/170

105/150/200

150/180/215

195/215/235

Green

0/153/51

70/175/90

136/204/136

170/220/160

200/240/190

Orange

246/110/19

255/139/46

255/174/84

255/195/140

255/215/180

Red

204/0/0

221/68/51

239/121/97

250/170/150

255/200/185

Black

51/51/51

102/102/102

153/153/153

204/204/204

221/221/221

Date post:	29-Jun-2015
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Solid Edge ST4 Event: Session 214 Getting the Most Out of Solid Edge Simulation by Ronnie Conerly

Technology