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PROD311 Lec 9
Terms in this set (37)
Design _________ is commonly understood as an organised process of improving _______ of a certain design concept without changing the concept itself
In a ________ design study, the user specifies values for each variable, either as discrete values or as a range
True or false: The software does not run iterations of the values and reports the optimum combination of values to meet the specified goal?
An automated process that improves an existing design according to specified criteria is called what?
Optimisation is to derive an optimal _______ ________ for a design under given functional usafe conditions
Shape optimisation works in a similar manner to automatically proposing adjustments to the model in response to _______ ______
Using the force flow technique, you can 'draw' on _____ paths through the products to determine regions of ________
It makes not difference which way you assume the fluid flows, but the _____ is important
What part of the component would the fluid most likely go through
The path with the least amount of resistance
What does the direction of each flow line represent?
The maximum principal stress at the location
What symbols are used for tension, compression, shear and bending?
T, C, S, B
What can the flow lines be labelled as, in terms of the major types of stresses occurring at the location?
Tension (T), Compression (C), Shear (S) and Bending (B)
What can bending be decomposed as?
Tension and compression - shear must occur between tension and compression on a flow line
Force is transmitted at _______ primarily by _________
Where can shear stresses occur?
In adhesive, welded, and friction interfaces
In less refined geometry than Ullman's clamp, we can use the force flow process to remove _____ material, _______ the design
In Topology optimisation the software produces a _______ outcome (essentially showing 3D load path), from which we can then re-draw our geometry for ____ analysis.
Topology optimisation differs from the shape and sizing optimisation studies we can perform through __________ design studies as there is no monitor of an FEA outcome.
The output geometry of the topology optimisation can take ____ shape within the pre-defined design space
What is missing from the F360 Optimisation Workflow?
- Create FEA Geometry
- Determine Preserve Regions
- Assign Materials
- Define Optimisation Objectives
- Define Symmetry
- Solve (Requires Cloud Credits)
- Check and Refine
- 'Promote' the Outcome
Define (multiple) Loads & BCs
What definition does this stand for?
Shape optimisation outputs geometry that can take any shape within the pre-defined design space.
____________ ___________ set the goal of the study. In Shape Optimisation they reduce mass based on a target percentage and maximise _________
Optimisation Objectives, Stiffness
On Fusion360 Shape Optimisation and Generative Design can only be solved on the _____
The outcomes of the study are presented as a _______ ____
The promote tool 'sends' the outcomes of the study back into the _______ _____
After the promote tool sends the outcomes of the study back into the design space, you can ______ and ________ the surface for manufacturing, or use this as a guide to adjust your original design
What can be defined to force the results to provide a symmetrical outcome?
Using optimisation processes means applying ___ of the loads a product might see in use at the same time
Using multiple load cases stops loads __________ ___ if they're all added at once
Shape optimisation in F360 is in the __________ workspace but does not leverage "full" FEA, it is just determining the ____ _____
Simulation, Load paths
Shape optimisation does not care about the _________ of loads, only their ratios
Elements for optimisation default to quite _____, linear elements
Increasing the order (p-refinement) does very little, while decreasing the _______ size (h-refinement) can be very effective for getting a clearer depiction of load path
Topology (shape) optimisation is a what stage process?
Late stage process
Topology is used to ______ and detail existing designs against design criteria
Generative Design is a what stage process?
Early stage process
What is generative design used for?
To generate (starting) forms against design criteria
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