Bear in mind that with the affordability of LASER cutting for mass production this form of optimisation becomes a necessity based on higher material costs and customer expectations. The below image shows the promoted mesh over the original Inventor part. The next stage is to promote the shape to the part modelling environment where you sketch and model a refined and logical shape based on the mesh. The resolution of the mesh can also be refined within the Shape Generator settings dialog box. Note that the result now shows the original mass and the new mass based on the optimisation. In the below example we have set a material reduction of 30%. Inventor will then optimise the shape based on the Shape Generator Settings. Once this is done you then run the Generate Shape command. Inventor will then take this into account during the optimisation process and preserve these vital areas. This tool will enable you to select regions where fixings will occur such as bolts and plated connections. You will also notice that an option is present to preserve regions. Within the Shape Generator toolset you then add your Boundary Conditions (Constraints) and desired loads. The next stage is to launch the Shape Generator. The first step is to model the bracket with its basic form with all fixing positions. The bracket needs to be designed to take a load of 500KN/m² with a safety factor of 1.2. In this simple example shown above I have taken a simple bracket fabricated from 6mm thick steel plate with a simple gusset plate added for stiffness. Although this technology is currently not within the traditional structural design products from Autodesk such as Autodesk Robot and Autodesk Advance Steel it is worth noting that manufacturers of mass produced structural systems can benefit from the optimisation of traditional products. Within the release of Autodesk Inventor 2016 R2 is the Shape Generator tool for the design of efficient, light weight structural systems based on typical boundary conditions and loads that you specify.
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