Hi,
Can anyone tell me how to define radial spring i.e. force vs radial defomation feature (like garter spring) between to concentric 3D cylindrical parts separated by 0.2 mm radial clearance in ANSYS workbench environment?
Thanks in advance!
Hi,
ASME B16.34 & API 6D ask to consider pipe load for valve design but didn't specify how to use them. If customer has given bending stress as a design condition how to use it for design of single piece and 2/3 piece valve body? Any illustration will be highly helpful.
Cheers!
Hi All,
Can anybody throw some light on clause 5.8 of API 6D 24th edition.
[highlight #F57900]"Valve cavity relief pressure when added to the valve pressure rating shall not exceed 133 % of the pressure rating of the valve at its maximum specified design temperature"[/highlight]
1) "when...
Hi All,
Go through this thread http://www.eng-tips.com/viewthread.cfm?qid=209037
We are having exactly same problem as per above thread. The Cv values we are getting through software are very less but they are matching when valve is treated as CONTROL VALVE and are 40/50% less when valve is...
Hi !
One customer has asked for Bolt Load evaluation of valve. The conditions given are
Max. Overpressure =0.05 bar
Impulse = 350 N.s/m^2
Equivalent static load= 25 kpa
Can anyone tell me how to use this data on valve + actuator geometry for design evaluation?
Thanks & Regards,
I have to run the valve FEA with pipe flange loads i.e. axial loads and moment loads at end flanges obtained by Piping software.
I don't know how to constraint the valve geometry (displacement limits) and apply these piping loads in software. I will be using ANSYS of FEA.
Any comments?
Thanks !!!
All valve experts need your opinion :-
Why people insist to design ball valve body-adapter flange (thickness) to design as per ASME Sec VIII Div 1 Appendix 2?
Actually the adapter is guided in body and does not allow to create moment due to bolt load which is a typical case of end flange / pipe...
Dear All,
Can any one share thoughts to carry out sesimic transient analysis (accl vs time) of valve assembly using ANSYS Workbench?
Further valve is joined to pipe and pipe is supported to ground so how can I transfer this ground acceleration to valve assy? I mean how can I constrain the...
Dear All,
Can any one share report / procedure to carry out sesimic analysis of valve + actuator assembly using ANSYS or any other FEA tool or hand calculations? Step by step procedure will be highly helpful.
I have response spectrum data of site available with me.
Thanks.
Hi !
Is fatigue analysis of valve required / applicable as per ASME B31.3 Chapter IX para K304.8?
If I want to carry out this analysis as per ASME B31.3 and ASME sec VIII Div 2 part 5, what are the load conditions I have to consider for failure other than pressure boundary?
There are lot of...
