tutorial #4 - sacs basic
TRANSCRIPT
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SACS BASIC Tutorial #4
KL4120 Offshore PlatformOcean Engineering ITB
2015
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Outline Advanced Modelling (Review) Basic Load Environmental Load Load Factor and Combination Global Parameters
Assignment #3!
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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
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Basic Load Selfweight / Deadload Live load Equipment Load Jacket Appurtunance Load Crane Load + Moment etc
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Basic LoadContoh load detail (requested by owner):
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Basic Load Selfweight / Deadload
Two way to determine selfweight and deadload in SACS, which one we use?
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Basic Load Live load
Live load = human load / operating load
Different for each areas/decks/standards
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Basic Load Equipment Load
Using pressure area load Calculate weight / area of equipment,
and then input the load
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Basic Load Jacket appurtunance load:
Anode Pad-eye / shackle Mudmats (if not appear in model) Ladder etc
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Basic Load Crane load and moments:
What we need: crane weight crane arm
Calculate manually and input as joint load and joint moment
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Environmental Load Wave Load Current Load Wind Load etc
Flood (for platform in river/delta/estuary area) Tsunami (for platform in tsunami area) dll
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Environmental Load Wave Load
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Environmental Load Wave Load
Wave theory selection Calculate Tapp
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Environmental Load Wave Load
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Environmental Load Current Load
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Environmental Load Wind Load
Wind load on SACS Seastate input Manual calculation,
applied in deck legs
Find the difference!
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Environmental Load Wind Load
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Environmental LoadContoh environmental load :
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Load Factor and Combination
Why load must be factor-ed? Why should be determine load
combination? How to determine factor and combination?
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Load Factor and Combination
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Load Factor and Combination
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Global Parameters Mass and Drag Coefficient Marine Growth etc
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Load Factor and Combination
Mass and Drag Coefficient
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Load Factor and Combination
Marine Growth
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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)
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FTP Tugas Address : ftp://kuliah.ocean.itb.ac.id Username: senin Password : malam
Format nama file:sacinp.tugas3_155120xy