Ansys Workbench-Chapter05
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This chapter discusses 3D simulations in 5 sections. Section 5.1 describes simulating a beam bracket made of structural steel to withstand a 27 kN load. Section 5.2 covers simulating a pressure cylinder cover made of engineering plastic to withstand a 0.5 MPa internal pressure. Section 5.3 provides more details on meshing and coordinate systems. Section 5.4 presents simulating an LCD display support made of ABS plastic with a 40 N design load. Section 5.5 is a review.
![Chapter 5 3D Simulations Section 5.1 Beam Bracket 2
Section 5.1
Beam Bracket
Problem Description
[1] The bracket is
made of
structural steel.
[2] The
bracket is designed to
withstand a load of 27 kN
uniformly distributed over
the seat plate.
[3] Fixed
support at
the back
face.](https://image.slidesharecdn.com/chapter05-160313112331/85/Ansys-Workbench-Chapter05-2-320.jpg)
![Chapter 5 3D Simulations Section 5.2 Cover of Pressure Cylinder 4
Section 5.2
Cover of Pressure Cylinder
Problem Description
[3] Circularity of
this internal
surface is what
concerns us most.
[1] The cover is
made of an
engineering
plastic.
[2] The cover is
designed to hold
up an internal
pressure of 0.5
MPa.](https://image.slidesharecdn.com/chapter05-160313112331/85/Ansys-Workbench-Chapter05-4-320.jpg)
![Chapter 5 3D Simulations Section 5.3 More Details 8
Coordinate Systems
• When defining an environment
condition or a solution object by
<Components>, you need to refer
to a coordinate system. By default,
<Global Coordinate System> is
used, which is a Cartesian
coordinate system.
• To define a new coordinate
system, you need to define the
type of the coordinate system, the
origin, and the axes.
[1] Type of
the coordinate
system.
[2] Origin.
[3] Axes.](https://image.slidesharecdn.com/chapter05-160313112331/85/Ansys-Workbench-Chapter05-8-320.jpg)
![Chapter 5 3D Simulations Section 5.3 More Details 9
[1] Increase/
decrease contour
bands.
[4] Number of
significant digits.
[3] Double-click
to edit value.
[5] Turn on/off
the date/time.
[6] Display
independent
bands.
[2] The divider
can be dragged.
[7] Reset
the legend.
Legend Controls](https://image.slidesharecdn.com/chapter05-160313112331/85/Ansys-Workbench-Chapter05-9-320.jpg)
![Chapter 5 3D Simulations Section 5.4 LCD Display Support 11
Section 5.4
LCD Display Support
Problem Description [2] The design load
(40 N) applies on
the trough.
[1] The LCD
display support is
made of an ABS
plastic.](https://image.slidesharecdn.com/chapter05-160313112331/85/Ansys-Workbench-Chapter05-11-320.jpg)
Ansys Workbench-Chapter05
- 1. Chapter 5 3D Simulations 1 Chapter 5 3D Simulations 5.1 Step-by-Step: Beam Bracket 5.2 Step-by-Step: Cover of Pressure Cylinder 5.3 More Details 5.4 More Exercise: LCD Display Support 5.5 Review
- 2. Chapter 5 3D Simulations Section 5.1 Beam Bracket 2 Section 5.1 Beam Bracket Problem Description [1] The bracket is made of structural steel. [2] The bracket is designed to withstand a load of 27 kN uniformly distributed over the seat plate. [3] Fixed support at the back face.
- 3. Chapter 5 3D Simulations Section 5.1 Beam Bracket 3 Techniques/Concepts • Engineering Data • Material Assignment • Stress Tool>Safety Factor • Structural Error • Mesh Control>MultiZone • 3D Solid Elements
- 4. Chapter 5 3D Simulations Section 5.2 Cover of Pressure Cylinder 4 Section 5.2 Cover of Pressure Cylinder Problem Description [3] Circularity of this internal surface is what concerns us most. [1] The cover is made of an engineering plastic. [2] The cover is designed to hold up an internal pressure of 0.5 MPa.
- 5. Chapter 5 3D Simulations Section 5.2 Cover of Pressure Cylinder 5 Techniques/Concepts • Add a new material in <Engineering Data> • Isotropic Elasticity • Material Assignment • Loads>Pressure • Create a new coordinate system • Cylindrical Coordinate Systems
- 6. Chapter 5 3D Simulations Section 5.3 More Details 6 Global Mesh Controls • Relevance Center • Relevance • Number of nodes/elements • Mesh Quality Metric Section 5.3 More Details
- 7. Chapter 5 3D Simulations Section 5.3 More Details 7 Mesh with MultiZone Method • Generally, hexahedral elements are more desirable than tetrahedral. • A simple idea of creating hexahedra is to mesh faces (source) of a body with quadrilaterals and then "sweep" along a path up to other end faces (target) of the body. • Not all bodies are sweepable. • The idea of <MultiZone> method is to decompose a non-sweepable body into several sweepable bodies, and then apply <Sweep> method on each of bodies.
- 8. Chapter 5 3D Simulations Section 5.3 More Details 8 Coordinate Systems • When defining an environment condition or a solution object by <Components>, you need to refer to a coordinate system. By default, <Global Coordinate System> is used, which is a Cartesian coordinate system. • To define a new coordinate system, you need to define the type of the coordinate system, the origin, and the axes. [1] Type of the coordinate system. [2] Origin. [3] Axes.
- 9. Chapter 5 3D Simulations Section 5.3 More Details 9 [1] Increase/ decrease contour bands. [4] Number of significant digits. [3] Double-click to edit value. [5] Turn on/off the date/time. [6] Display independent bands. [2] The divider can be dragged. [7] Reset the legend. Legend Controls
- 10. Chapter 5 3D Simulations Section 5.3 More Details 10 Adaptive Meshing • Workbench provides a tool to automate the mesh refinement until a user-specified level of accuracy is reached. • This idea is termed adaptive meshing. • Internally,Workbench exploits the structural errors to help adjust the mesh, that is, it refines the mesh size in the area of large structural errors.
- 11. Chapter 5 3D Simulations Section 5.4 LCD Display Support 11 Section 5.4 LCD Display Support Problem Description [2] The design load (40 N) applies on the trough. [1] The LCD display support is made of an ABS plastic.
- 12. Chapter 5 3D Simulations Section 5.4 LCD Display Support 12 Techniques/Concepts • Loads>Bearing Load