Ship Weight Presentation 05 11 2020 1 Ship

Ship. Weight Presentation 05. 11. 2020 1

Ship. Weight • • • More than 18 years of weight engineering in the ship and oil offshore industry Ship. Weight: – Weight & CG Estimation – Weight & CG Tracking – Weight & CG Monitoring – Weight & CG During Operation In use at shipyards, design firms, and navies all over the world Ø Used for a large variety of vessels, including naval vessels (aircraft carriers, submarines, destroyers, etc. ), offshore vessels (FPSO’s, Semi-submersibles, etc. ) to commercial ships (tankers, cruise and fishing vessels, etc. )

Ship. Weight - Active Users • Sales worldwide – – • 150 licenses sold, to 50 different companies, in 14 different countries, on 4 continents In the US: – NNS, BIW, Exxon. Mobil, SBM Atlantia, KBR, EB, NASSCO, MMC, VT Halter, Austal, Textron, etc. • In Europe: – Statoil, Aircraft Carrier Alliance, Rolls-Royce Marine, Ulstein Design, Navantia, GVA, Bassoe Tech. , etc. • In Asia: – Mazagon Dock Limited, SBM Malaysia, SDARI China, etc. .

One Tool for All Weight Engineering Reuse and Utilize Your As-built Data !! Contract Delivery Design/Concept Production Development/Detailed design Ship. Weight Estimation based on past weight data using parametric ratio formulas Ship. Weight Administration of weight data available from other systems (import) Data from the complete vessel is reused in new estimations Ship. Weight Tracking and monitoring reported weights

Ship. Weight – Technical Information • Windows application running on SQL Server – Compatible with SQL Server 2000 and on (incl Express) – Running on Windows XP, Vista, 7 & 8 • Multi-user application – Virtually unlimited number of simultaneous users – Can handle large amounts data (millions of weight items) • Scalable! • First release in 1995 – Current version: 11. 3

Ship. Weight • Preserves knowledge in Company • Is a Database Tool – Excel – widely used but… • Prone to errors • Often related to the inventor and difficult to implement across the organization • Lack of security features and user control • Not very suitable to produce good reports • Single user system – Advantages over Access • Multi-user • Continued development, with input from industry • Updated to latest operating system and database versions • Feature rich

Work Breakdown Structure • The construction is divided into a work breakdown structure (WBS) suitable for the user organization, forming a hierarchy of weight groups • The standard WBS suits most types of constructions • Can be edited and customized

Parametric Estimation • Estimate weight groups based upon historical data Unique capabilities for early stage estimation of weight and CG through parametric formulas and coefficients drawn from regression of historical data 05. 11. 2020 8

Weight & Co. G Parametric Estimation Small sample of weight groups with parametric formulas. The sum of groups gives the total weight estimate for the vessel. Let us look at an example for the estimation of one single weight group: Propulsion Light. Ship W=k*LBD*sqrt(Cb) 200 100 300 W=k*L*B W=k*Power^0. 65 W=k*Watson. E 210 220 310 320 110 W=k*. . . . W=k*. . .

Regression on Historical Data Estimation method: W = k*P^0. 65 Historical Data Vessel 1 Vessel 2 Vessel 3 Vessel 4 Vessel 5 Vessel 6 Vessel 7 0. 25 0. 24 Ø 0. 23 0. 22 k 0. 21 0. 20 0. 19 Weight [t] 4100 3500 3000 2600 2300 2200 2000 Power [k. W] 26000 20000 16000 14000 11000 9800 8500 k (Weight/Pwr. ) 0. 16 0. 18 0. 19 0. 21 0. 22 0. 24 Examples of parametric formulas: § W = k * P^0. 65 § W = k * L*B __ § W = k * L*B*D*√Cb § W = k * Watson-E 0. 19 0. 18 0. 17 0. 16 0. 15 5000 0. 16 10000 15000 20000 Propulsion Power 25000 30000

Leveraging an existing database • A new design can leverage from one or more existing projects in the following ways: – All or some of the SWBS groups can be scaled parametrically based on ratiocoefficients that are extracted from a single past vessel or through regression on several vessels – All or some of the SWBS groups can be populated from importing detailed items or total weight from one or more existing vessels – Items can be added, deleted and/or changed after import or scaling 05. 11. 2020 11

Transition to Tracking • Weight group parametric estimation are total values for each weight group • Tracking is assigning weight items to a weight group. – Assigning is done through manual input or from data import text files, Excel or CAD systems. • Weight group value is the sum of all items assigned to a weight group Customizable weight & CG tracking and calculation throughout detailed engineering and construction.

Ship. Weight - Input • Combined single record- and table view • User-customized setup of input view • Up to 100 user-defined fields • Sorting and filtering capability • Multiple modification of items • Windows Cut, Copy and Paste – – – Maturity & Contingency Modules & Sections Allowance Fluids Department & Disciplines

Data File Import • The following formats can be imported in a generic way defined by the user: – Flat text files – Delimited text files • Tab-delimited • Comma delimited • Etc… – MS Excel files – MS Access files

Ship. Weight Main Window • Runtime summation of all key values for all levels of the work breakdown structure (weight groups)

Playground Area • Work ”offline” Check Area • Approve/Reject • Log net changes Ø Ship. Weight ”Playground Area” is a workspace where you can enter and edit weight data outside the main project data Ø Weight data is checked in and out of the ”Playground Area” and this operation is logged along with change summaries Ø The purpose of the ”Playground Area” is § Weight ”Live” DB • Basis for reports and calculations § § To be able to check changes to the database before it goes ”live” To track changes to the database better To handle margins better

Phase Codes • Allowing to set ”Time In” and ”Time Out” Code – Defining the ”time” an item is to be included • • To be used when ”Flags” are not sufficient To be combined with Global Filter Phase AD Phase CH Phase BF Phase DJ Phase HZ Phase AZ 05. 11. 2020 Timeline 0 10 20 Filter: 30 40 0 30 Phase CH 20 70 Phase BF 10 50 Phase DJ 30 90 Phase HZ 70 100 Phase AZ 0 100 50 Weight at time: Time Out Phase AD Time In 60 55 70 80 90 100 18

Weight Distribution Curve • To obtain the weight distribution curve, fore and aft values must have been entered for the weight items • Default Extension can be given • The curve can be exported to several different file formats readable for stability programs

Moment of Inertia & Gyradius • Moments of Inertia are calculated using Steiner’s theorem • Inertia around a single weight item is calculated approximating the item to a box • Gyradius values for input to seakeeping analysis calculated for – – – Roll Pitch Yaw Pitch/Yaw Roll/Yaw

3 D Visualization • Open GL graphics for visual sanity checking • Rhino Plug-in • Navisworks Plug-in

Monitoring of current weight and CG situation by comparing data to original estimate and previous revisions, analyzing deviations and trends.

Reporting • Crystal Reports combined with Ship. Weight custom codes makes it easy to report at various levels of coordinates and coded subgrouping • Export to text file, Excel, Word & PDF format • Group, summarize and display graphs for the quantities you want • SAWE RP 12 Report templates are included

". . . Ship. Weight has standardized weight information and made it easier to find data on the various installations. This saves the company and its partners an estimated 7 million NOK (800, 000 EURO) per year. " Origo – internal publication for development and production, Norway, Statoil – the September 2015 edition 05. 11. 2020 24

Thank You for Your attention More information on: www. shipweight. com 05. 11. 2020 25