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2. SkyCiv Structural 3D
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4. Lid Designer

Lid Designer

Get the most Optimized Sections for your designs, in a single click.

The SkyCiv Member Design Optimizer saves users time, by adding checking every possible section in a given database and choosing the shape with the lowest cross sectional area and best utility ratio. Momenteel, the Optimizer supports all SkyCiv Design Codes (AISC, NDS, AISI, NET ZO, CSA, BS, Eurocode and more…).

The Optimizer exists on all of our steel, wood and cold formed member design software via SkyCiv Structural 3D, SkyCiv Beam and our Standalone Design software.

Launching the Optimizer

en begin met het invoeren van de coördinaten van uw knooppunten, there are two ways to launch the Optimizer. Ten eerste, simply click theOptimaliserenbutton in the design module of your choice. In the below model, we are using a steel model, that clearly has some failing AISC members:

Second way is to simply highlight which members you wish to design, klik dan met de rechtermuisknop – Optimaliseren. Notitie: this will optimize these members’secties, not each member individually.

Instellingen

Users have a number of controls and settings available, including a targeted Utility Ratio, Section Height/Width limits and which sections you wish to design. By clicking the settings button next to theOptimaliserenknop, the following options will appear:

Variables

Users have the option to choose between all the sections from the library, a range of section heights or widths. These options will govern what sections, the optimizer looks at when selecting the most optimized section

Criteria

Users can input their own maximum utility ratio for the optimizer, this would mean that any result with a higher UR than specified will not be considered a valid choice. Users can also specify for the optimizer to minimize the section area as well, it will then find the balance between the highest possible utility ratio and the smallest section area

Member settings

In this area of the settings modal, users can select their design code as they normally would in the Member Design module. Hier, ze kunnen er ook voor kiezen om hun groepen te optimaliseren of om hun secties te optimaliseren, within the model.

Resultaten

The results of each section will display in a popup, een samenvatting van de geselecteerde sectie, het is de gebruiksratio en opties bij het plegen. In the below example, alle 7 secties van het model. Er is een resultaat gevonden voor alle sectie-ID's, behalve een. The minimum working section for this shape had a Utility Ratio of 1.115:

*The red line indicates that, even the biggest section area could not withstand the loading conditions

We can take a closer look at all the runs and their results by clicking the icon underIterations. This will display the following detailed list of runs. Bijvoorbeeld, selecting section 3 (HSS) will show the following:

From here we can sort by Max UR, cross area and SFO (a weighted index) which will show the best result based on your predetermined criteria (in settings). This allows users to review the optimization runs to make sure the right section has been selected. In het bovenstaande voorbeeld, we set a max Utility Ratio of 0.95 and a desire to minimize the cross section area.

SFO for each result is calculated as shown below.

$\bg_white&space;SFO&space;=&space;\frac{\sum&space;\frac{\text{Result}}{\text{\&space;Criteria}}}{\text{Number&space;\&space;of&space;\&space;Criteria}}$