No papers that I know of right offhand, but there may be some. Just some proprietary field and experimental data. Predicting dynamic pdrop effects is another matter. You might see some papers on it in the next few years.
You likely have an acoustic resonance, as vane pass pulsation is usually low amplitude. Cross wall frequencies of big pipes, or fairly short stubs would fall into this range. If there is a mechanical frequency involved, it could also be a breathing (shell) mode of the pipe. In this case...
I am in the pulsation control business, and here is the truth of the matter.
1. Pressure drop through orifice plates under steady flow is easy to quantify, while pressure drop at the nozzle orifice requires more rigorous calculation that not every pulsation study provider does.
2. Pressure...
CAESAR from Coade for a quick beam element representation of the mechanical system. It is primarily for statics, but does a fine job for frequencies of simple pipe spans. The interface is made for building pipe. Ansys builds pipe beam models reasonable well also. I don't think you should...
Not gonna work. Too much damping in the plastic, and you'll kill the vibration in the section of interest as you slide the cylinder in. Think pressure and temperature like these guys are saying
Keep in mind that static stress may be ok, but the longer a pipe span, the more likely it will vibrate due to forces from two-phase flow, pulsation, etc.
These levels (17,11) are not that high. I've seen higher speed machines, of a much larger class, with 25+ mm/s with no incidence of failure.
Keep in mind that you can't believe what the vendor (any vendor) tells you. A system like this is dependant upon many variables that the vendor has no...
One acronym, three letters, FEA.
It is becoming easier and cheaper to do a quick modal analysis of simple geometry like you are talking about. Although, if your geometry in question is a simple sphere, Blevins may help you.
Let the guy doing the study decide where to terminate the model. If you are doing a model, model more pipe than you think you need to, then reduce the scope by cutting out the piping with negiligible pulsation (i.e., long runs/after big volumes like sms said).
Don't pay too little for a...
Do yourself a favor and go with a recip, unless Solar can provide references for the same application. I've heard nasty rumors about broken bolts during hydro when pushing solar cases to higher pressures.
Depending on the amount of strain happening in the material, you might not get a good bond. I've had the best luck with weldable gauges(they come with their own metal backing and are often used for high temp). You put them on with a little spot welder. To repeat what the previous replies...
I make a living "tuning" compressor piping. It is something that should be done during an API-618 DA3 study. It has been done since the 50's. I believe Southwest Research started the technology with their Analog computer.
"Tuning" simply means adjusting the lengths of piping such that they...
