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ctopher, Installation on local dedicated machine... I have been using it more...and the main delay is on the options window, when close it. Other user interfaces are OK... That one window just takes 10-12 seconds to close. Very strange.

We just jumped from SW 2019 to SW 2024. We also updated video drivers to that recommended by the Solidworks compatibility listing. We have noted some strange behavior. Specifically, when you open some sort of setting window like the System or Document properties interface, and go to close...

SWComposites, We are dealing with custom equipment in a highly competitive market. We use FEA to tell us how much to thicken baseplates, and whether to add gussets. Just saying "beef it up" does not work in the real world in a highly competitive market. Having very accurate FEA results is key...

JoshPlumSE, What is difference vs the CFD world? Because OpenFOAM seems to have broken through and is now considered a viable platform vs commercial codes. Is this because CFD is more computationally intensive, and an open source package that has no "per core" licensing restrictions has a...

Thanks for the prompt reply. We manufacture rotating machinery that is vertically mounted - somewhat tall and skinny with a fixed base mounting available. Avoiding operation near critical frequencies is very important to stop underlying excitation from amplifying, and causing high vibration...

We regularly perform FEA based Modal Analysis on what are essentially cantilevered vertical structures. The bases are bolted joints, and the real world interface between the sole plates and the structure are a can be a source of significant error. If we model as a bonded contact, the...

Well, we had some water, and came up with plan to isolate variables to troubleshoot this. The station has a back up Genset. We were going to run the pump station in the same manner, and record the same power data. But we could not get the Genset to operate. Apparently the staff has not been...

No new info. We have not been able to run the station as it only can be run when there is stormwater. This makes troubleshooting sort of hard.

Bill, Phase C Voltage is high (B to C and A to C are low), but it is only high by about 2.5 Volts. Phase C current is low relative to A,B. Phase C voltage is high by about 0.5%, but phase C current is low by about 1.5-1.8% This I can understand. But it is the rise of current in all...

Thanks for all the good input. Sorry I have not been able to follow up. Here is link to the motor data, and the test data I logged on the Fluke: Link Pump/Motor 1 is the least sensitive. Pump/Motor 2 is subject to moderate amp rise Pump/Motor 3 has the largest amp rise. When pumps 1,2,3 are...

We have a Stormwater Pump Station that is exhibiting strange behavior. *(3) 150 890 RPM 3/60/480V motors. FLA = 186 *We are at the far end of the power dist run *Pump/Motor 1 by itself runs OK. 130-140A. 483V *Add Pump/Motor 2, and the amps of Motor2 rise more than pump load indicates they...

Thanks for your perspective JJ. It sounds like you may deal with some much tougher applications that this! The reason for having that radial bearing at the top is there is a potential for a temporary upthrust, of about 10-20% of the normal steady state downthrust. The fit on that bearing to...

I am hoping for some experienced feedback on a thrust stand design for a vertical pump application Axial Load = 22,000# steady state down (there is a change of 0-5 second upthrust, up to 3,000# during start up) RPM = 510 Radial Loads at each shaft end = minimal. Mainly due to misalignment and...

Thanks for the link...

Thanks IR....those are exactly the sort of devices I am looking for.

Thanks for the responses gentlemen.... MacGyverS2000 (Electrical), I don't really care about wasting bits...but I literally have not been able to find a prepackaged module that does this. They are all much higher end modules that convert data streams, or are specialized for specific automotive...

I am looking for a very basic CAN Bus modules that can take simple discrete inputs, and the broadcast the switch state into a CAN network (1Mbit) 5,8 or 12V DC Powered 1MBit broadcast rate The most basic single CAN message broadcasts 8 bytes..which means I could transmit 64 switch states! I...

Little Inch, I think I have finally wrapped my head around it. It only took a week or so thinking about it on and off.... Basically you need to fit algebraic functions to your pump curves. You are describing a surface, since it is a function of two variables (speed and flow are the...

Little Inch, Thank you for the response, and putting some thought into it. *This is an open discharge system. No closed valves. *The acceleration phase is pretty fast. The motor is designed for maximum 6-7 second acceleration when started across the line. At reduced voltage, it would be...

Artisi, Uh...no...it is not. The fact that you made such a comment reveals you did not come close to understanding the question. No pump engineering text addresses this (even Gulich, which is very thorough), and the only reference I can find relating to acceleration head effects are for PD...