Re: Digital Structures B/C [mini SO, Satellite SO]
Posted: February 22nd, 2021, 8:23 am
Hello!Crtomir wrote: ↑February 21st, 2021, 8:34 am How are cross section sizes accounted for?
Suppose the minimum contact width set by the event supervisor is 6 cm and Div-B students put their bottom two attachment points at (0, -0.20, +0.06) and (0, -0.20, -0.06). Now suppose their cross-section sizes for the two main compression members at those two attachment points is 10 mm x 10 mm. How is the cross-section size accounted for in determining if the students design meets the minimum contact width set by the event supervisor? Is the 10 mm x 10 mm cross section centered on the two attachment points and therefore the "measured" distance between them is actually 6 cm - (1/2)(10 mm) = 6 cm - 5 mm = 5.5 cm? Would this then be a construction violation? Do construction violations show up when the students "test" their structure? How can event supervisors determine if there is a construction violation? How can the students "measure" their digital Boomilever to double-check for construction violations before "testing" it?
In SkyCiv, the members are straight lines between nodes, so how can you how the cross-section of a member sits in relation to the member line? Is it always centered, or can it be changed?
The contact width AND depth depends on the thickness of the wood, while contact load distance does not. The wood will be centered at the node you put it out, so I believe a 10mmx10mm piece of wood would extend 0.5cm past the minimum contact line (so yes, resulting in a contact width of 5.5cm).
As far as I know, the Event Supervisors will just see a short table with contact width, depth, load distance, efficiency (and possibly weight held + weight of boomi). You will be able to check if your boomilever contact width, depth, and load distance when you test (i believe it should be on the bottom left, above the performance score).