Refinery

The Power User's Guide to COMPRESS
Lifting Analysis for Vessels and Exchangers 

Vol. 1, Issue 1 | October/2009
Greetings! 
 
What use is a highly engineered piece of equipment if you can't get it off the truck and stand it up? COMPRESS includes an integrated solution to this complex task. When performing lifting analysis COMPRESS:
  • Uses an accurate weight
  • Finds the correct center of gravity
  • Applies the actual sectional properties

With COMPRESS:

  • Rigging analysis is considered in the vessel design
  • The governing lift angle for vertical vessels is automatically determined
  • Lift lugs are designed to be strong enough to avoid tearing or bending

More About Rigging

Horizontal Lift LugThe COMPRESS rigging analysis can be used with or without the lift lug option. It provides bending moment, shear stress and bending stress diagrams as well as tabulated values at main vessel locations. Variations in local sectional properties along the length of the vessel are considered.
 
When activated with lift lugs, the lift points are taken as the lift lug locations by default. This can be overridden to provide a quick indication of the effects of relocating lift points (design optimization).
 
 
More About Lift Lugs
TrunnionCOMPRESS includes a lift lug design option. Plate, ear, trunnion and tail type lift lugs are included. COMPRESS calculates the stresses within the lug as well as the local stresses of the vessel at the lug attachment location. For vertical vessels which undergo a rotational lift from horizontal (shipping) to vertical (in-service), the lift lug is checked for all lift angles (0° - 90°). The governing lift angle condition is automatically found and reported. 
 
 
If you don't have software that performs lift and rigging analysis, it's time to explore the benefits of COMPRESS. Find out more by emailing inquiries@codeware.com or calling (941) 927-2670, option 1.
 
Sincerely,
 
The Codeware Team  
 
 
The Power User's Guide to COMPRESS shows you how to save time and optimize your pressure vessel and heat exchanger designs. Suggest a topic for a future issue by emailing feedback@codeware.com.