I have a relatively simple model in RISA-3D. No "tension only" members. No "Euler Buckling" members. Spring constraints and some RIGID members, though.
It's got a few HUNDRED load combinations, and I'm trying to run ONE, using the "Solve Current Combination" command.
So far, so good...
I started to examine a multi-stage telescoping hydraulic cylinder for Euler buckling (it actually is rigidly mounted at its base stage, and has side loads as well, so there are interaction equations to be dealt with), when I realised something important.
My "d'oh" moment of the day.
The walls...
Does anyone have a reference for equations of motion for an S-Curve?
I'm looking for triangular acceleration ramps (step jerks), and eventually want to be able to calculate the force (acceleration) and therefore the power required to get a piece from point (a) to point (b) in a known time, with...
I've been at my current company for about 4 years, and this particular problem has come up once or twice before.
But I've had enough, and I don't think I'm going to take it any more.
I was recently involved in a project that suffered from a cost overrun. After talking to the client, I agreed...
I'm looking for a fastener or pin that can be purchased with a known shear fracture point. I say fracture instead of failure because yielding is not enough. I need it to break into two pieces. I need a relatively accurate fracture value (+/- 5%), as it is for an indusatrial robotic...
I'll be giving a presentation in March, 2004 for the ASCE "Earth and Space" conference, on methods of transit between fixed and centripetally rotating sections of (far future) spaceships and space stations.
I'm looking for pointers to current thoughts & papers on rotating human...
I'm using Version 7.1 of MSC.Visual Desktop (Working Model 4D), and I'm trying to model an oblect as it slides down a rope. The rop is terminated at two high points, and has a sag. The object starts from one of the high points, and slides down along the rope's length.
Oh, and the rope's...
After downloading and installing the 62 MB patch to upgrade my STAAD PRO 2001 to build 1006, and then installing the new US/Aluminum Code Check executable to fix a problem with STAAD reporting tension in members that were actually undergoing compression, and then having to receive a new HASP key...
