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#36621 - 07/06/10 02:52 AM Is the saddle wear plate a reinforcement plate?
yl0525 Offline
Member

Registered: 11/04/08
Posts: 8
Loc: Singapore
Dear all,

I know this question may be silly to some people but I am serious in asking so. To my knowledge, a reinforcement plate plays important role in strengthen a member from being overtsressed.

But is a saddle wear plate a reinforcement plate? What about the repad beneath the lifting lug, internal/ external attachments?

Thank you.

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#36718 - 07/08/10 04:56 AM Re: Is the saddle wear plate a reinforcement plate? [Re: yl0525]
Camelia Offline
Member

Registered: 06/03/09
Posts: 18
Loc: Netherlands
The saddle wear plate is a reinforcement and contributes in strengthening the shell, but with few conditions:
- the wear plate width to be at least b+1.56sqrt(rt), where b is the saddle width, r is shell's internal radius and t is shell thickness.
- the wear plate extends R/10 above the horn of the saddle (R - shell's external radius)

A repad contributes in increasing the strength.
_________________________
Camelia Stingaciu

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#36773 - 07/09/10 10:14 AM Re: Is the saddle wear plate a reinforcement plate? [Re: Camelia]
Mak Offline
Member

Registered: 12/12/08
Posts: 82
Loc: india
Hi,

Saddle wear plate can be reinforcement & will increase the strength of the vessel against the ovality which leads because of vessel self weight. But in this case as per zick analysis location of saddle center from tangent line should be at a distance equal to or less than radius of shell by 2 (i.e. R/2).

Also, the factor b+1.65sqrt(Rt) also helps to consider the wear plate effect. Actually the stresses are going to deny at the end of the distance of sqrt(Rt).
_________________________
_________________________
Regards,
Makrand Sakpal
Contact No: - 9967949656

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#36820 - 07/12/10 08:21 PM Re: Is the saddle wear plate a reinforcement plate? [Re: Mak]
yl0525 Offline
Member

Registered: 11/04/08
Posts: 8
Loc: Singapore
Great! Thanks for all your advices.

Rgds.

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