Dears,

Is there any reference in any recent edition of API-618 which allows reciprocating compressor pulsation analysts to consider friction at supports in mechanical study of reiprocating compressor pipings ?

Isn't it an ad-hoc high-risk assumption of pulsation analysts?

When someone says that shaking forces are not high, how will we get assured of sanity of this assumption ?

If frequently small bore pipings connected get broken frequently, can we still consider the shaking forces in main pipings small enough to be contained by friction at every support ?

If we consider this in pulsation study, why don't we do so for seismic events for simmilar forcing frequencies ?


'In fact, if you ever file a report to qualify a system where your analysis "takes advantage of" friction in any way, shape, or form, you will eventually become an "ex-stress analyst." It may take months or years, but it will happen.' Hats off to our mentor CraigB for 'jumping into this matter' to save us.

regards,
sam