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SACS BASIC Tutorial #4
KL4120 Offshore PlatformOcean Engineering ITB
2015
Outline Advanced Modelling (Review) Basic Load Environmental Load Load Factor and Combination Global Parameters
Assignment #3!
Advanced Modelling (Review)
Any questions (before)?
Kind of member properties type? How to determine member property? Why model need to be offsets? Check model step and troubleshooting
Basic Load Selfweight / Deadload Live load Equipment Load Jacket Appurtunance Load Crane Load + Moment etc
Basic LoadContoh load detail (requested by owner):
Basic Load Selfweight / Deadload
Two way to determine selfweight and deadload in SACS, which one we use?
Basic Load Live load
Live load = human load / operating load
Different for each areas/decks/standards
Basic Load Equipment Load
Using pressure area load Calculate weight / area of equipment,
and then input the load
Basic Load Jacket appurtunance load:
Anode Pad-eye / shackle Mudmats (if not appear in model) Ladder etc
Basic Load Crane load and moments:
What we need: crane weight crane arm
Calculate manually and input as joint load and joint moment
Environmental Load Wave Load Current Load Wind Load etc
Flood (for platform in river/delta/estuary area) Tsunami (for platform in tsunami area) dll
Environmental Load Wave Load
Environmental Load Wave Load
Wave theory selection Calculate Tapp
Environmental Load Wave Load
Environmental Load Current Load
Environmental Load Wind Load
Wind load on SACS Seastate input Manual calculation,
applied in deck legs
Find the difference!
Environmental Load Wind Load
Environmental LoadContoh environmental load :
Load Factor and Combination
Why load must be factor-ed? Why should be determine load
combination? How to determine factor and combination?
Load Factor and Combination
Load Factor and Combination
Global Parameters Mass and Drag Coefficient Marine Growth etc
Load Factor and Combination
Mass and Drag Coefficient
Load Factor and Combination
Marine Growth
Assignment #3! Load input from last model that created. Detail:
Selfweight Live load (see references!) Equipment (weight and dimension -> see references!) Crane (assumptions -> see references!)
Environmental load: NIM 155120xy x = wave height , y = wave period |x-y| = wind speed x and y = current speed ( bigger in surface, less in seabed)
FTP Tugas Address : ftp://kuliah.ocean.itb.ac.id Username: senin Password : malam
Format nama file:sacinp.tugas3_155120xy