2015-09.23 Designer Seminar Turku

7/25/2019 2015-09.23 Designer Seminar Turku

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DNV GL

Topics to be addressed

1

09.00 Welcome coffee and Opening notes

09:15 Introduction to DNVGL Rules, Development Process

10:00 Break

10:15 New DNVGL Rules:

Pt.1 and 2 General & Materials

Pt.3 and 5 Hull, Ship Types

Pt.4 Systems & ComponentsMachinery, Piping Systems, Pressure equipment

Electrical installations,

Control and monitoring systems,

Steering gear, Fire Safety

Pt.6 Additional Class Notations

12:00 Lunch


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DNV GL

Topics to be addressed

2

13:00 Battery and hybrid technology

14:00 New class notations LNG Bunkering & LNG Ready

14:30 End of seminar


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DNV GL

SHAPING CLASSIFICATIONFOR THE FUTURE

3

DNV GL

RULES

Modern rules

Modern tools

150 years

x 2

38

Ship typenotationsCombining 150 years expertise of two leading class societies,

DNV GL offers a modernized and efficient set of rules and related tools


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DNV GL 4


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DNV GL

DNV GL rules development process

5

Rule development

FEB

DNV rules

GL rules

DNV GL rulesGeneral regulations

DNVrules

GLrules

DNV GLrules

2015

Rule development DNV GL rules

Involving theindustry

Oct 2015

Planned

publication

Planned

entry into force

Jan 2016Oct 2013 July 2015

External Hearing


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DNV GL

200 experts 10000 pages of rule texts - .

6


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DNV GL

Developed by the DNV GL expertiseto ensure that the end productrepresents the strengthsof each of the legacy rule sets

Optimising and tailoring theuse of the toolbox in order to

ensure an efficient designprocess

Involving the stakeholdersto ensure that the rules are fitfor purposeand have a positiveimpact in the maritime industry

Using the best availablestandards and methodologies

as a toolbox to ensure thatthe rules are fit for future

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DNV GL 8


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DNV GL

DNV GL rules at a glance

A broad range of classification services

8 rule books

Content is re-used as much as possible

between rule books

Flexibility to develop and adapt rules to

vessel specific needs

9

Rule Book

Rules for classification Ships

Rules for classification Offshore units

Rules for classification High speed, light craft and naval surface craft

Rules for classification Inland navigation vessels

Rules for classification Yachts

Rules for classification Underwater technology

Rules for classification Naval vessels

Rules for classification Floating docks

Overview


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DNV GL

1. GENERAL REGULATIONS

2. MATERIALS & WELDING

3. STRUCTURAL REQUIREMENTS

4. SYSTEMS & COMPONENTS

5. VESSEL TYPES

6. CLASS NOTATIONS

7. FIS: SURVEY REQUIREMENTS

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What is it about? Points of interestApproach

The rules and standards governing our

classification for Mobile Offshore Units as

we will publish in July this year (that isbefore the other rule books)

Entry into force January 2016

Predictable results for the market; no

technical changes

Retaining the marketing value and

recognition of our renowned Offshore

An efficient and controlled process

balancing the need to market ourselves as

DNV GL vs. staying aligned with the Rules

for ships

Table of Contents

The new rules and standards are

based on the existing DNV Offshore

Service Specifications (OSS) series

covering our Offshore Class Services

and DNV Offshore Standards; that is

the same content but in a DNV GL

template


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DNV GL

Ch.1 ClassificationCh.2 Steel hull structures

Ch.3 Stability and freeboard

Ch.4 Machinery installations

Ch.5 Fire protection, detection and

extinction

Ch.6 Survey requirements

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What is it about? Points of interestWhat does Rules for Floating docksprovide?

The Rules define a minimum technical

standard for classification of floating

docks

The rules for FD are based on DNV rules

One clear set of requirements for

classification of a floating dock

Clear requirements for the retention of

class

Clear communication of documentation

and certification requirements towards

yards, designers and manufacturers

throughout the Rules

Increased flexibility with regards to

allowed methods for ballasting and de-

ballasting

General update of all references to DNV

GL Rules for Ships

Aligned requirements with DNV GL Rules

for Ships

Table of Contents


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DNV GL





5. VESSEL TYPES

6. CLASS NOTATIONS


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The rules for Inland Navigation Vessels

covers all aspects of classification of

vessels intended for operation on inlandwaterways

INV is fully based on GL rules

The regime will continue using TRON and

not migrated to NPS

Class notations have been aligned with

DNV GL rules

Increased service offering, as DNV did not

have rules for INV

Rules have not gone through any technical

changes, and are hence easily recognised

by customers

Table of Contents


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DNV GL





5. VESSEL TYPES

6. CLASS NOTATIONS


13


The rules for naval vessels cover all

aspects of classification for naval vessels

and submarines

The rules are brought forward as two

separate rule regimes according to

legacy rules

By offering two rule regimes for naval, we

are able to offer long term customers

predictability and transparency in service

offering

Table of Contents

DNV rules are brought forward as

an integral part

GL rules are brought forward as a

self-standing rules set

References to legacy rules have

been changed to DNV GL

references (e.g. hull requirements)


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DNV GL



3. PRESSURE HULL AND

STRUCTURES

4. MACHINERY AND SYSTEMS

5. TYPE NOTATIONS

6. ADDITIONAL FEATURES

7. SYSTEMS IN SERVICE

14


The rules for UWT cover all aspects of

classification of submersibles,

underwater working machines, ROVs andAUVs as well as diving simulators

The rules are gathering all underwater

systems and vehicles under one common

rule set, providing transparency to

builders and operators

Table of Contents

UWT are based on GL rules and

guidelines

Harmonised structure in line with

all other rule sets i.e. from Pt.1

Pt.7


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DNV GL





5. VESSEL TYPES

6. CLASS NOTATIONS


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The rules for Yachts covers all aspects of

classification of yachts, including motor

yachts, passenger yachts, sailing yachtsand sail ships

One rule set with harmonized

requirements taking advantage of

combined experience from both legacies

Harmonised General regulations (Pt.1),

Ship type notations (Pt.5), Additional class

notations (Pt.6) and FIS Survey

requirements (Pt.7) with Rules for SHIPS

State of the art rules for composite hull

structures

Table of Contents

Yachts was based on GL rules and

guidelines

The technical content represents

the latest handling of yacht rojects

The structure of the rules has been

aligned with other rule sets and all

applicable yacht types have been

included


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DNV GL





5. VESSEL TYPES

6. CLASS NOTATIONS


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The rules for HSLC covers all aspects of

classification of vessels covered under

the HSC code and Naval Ship Code, aswell as other vessels types not covered

by the other rule sets (Inland

Navigation, Ships or Yachts)

Harmonised General regulations (Pt.1),

Ship type notations (Pt.5), Additional class

notations (Pt.6) and FIS Surveyrequirements (Pt.7) with Rules for SHIPS

Improved methodology for calculating hull

strength

State of the art rules for composite hull

structures

Table of Contents

HSLC was based on DNV Rules for

High Speed & Light Craft, considering

relevant parts of GL Classification

and Surveys

For hull structural rules, the strength

calculation has been harmonised

between the two rule sets, and a

state of the art chapter for composite

hull structures has been developed


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DNV GL 17


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DNV GL

r

To establish a set of rules using the strengths of the existing rule sets while

ensuring that the rules are:

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clear, consistent and easyto understand

fit for application to novel

designs thus enhancingability to support futuretechnology development

improving efficiency inthe design and approvalprocess

fit for future developmentwith increased consistencyand transparency

an optimal combinationof the existingclassification services


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DNV GL

Overview of the rule book SHIP

The book is split in a logical and easy to grasp structure consisting of 7 parts

Follows a typical design and approval process

Redundant content is avoided to ensure uniformity in requirements andconsistency throughout the rules

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Pt. Part Name

Pt.1 General regulationsPt.2 Materials and welding

Pt.3 Hull

Pt.4 Systems and components

Pt.5 Ship types

Pt.6 Additional class notationsPt.7 Fleet in service


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DNV GL SAFER, SMARTER, GREENERDNV GL 20


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DNV GL 22

Main class

notation

(Pt.1 Pt.4,

and Pt.7)

1A

Service

arearestrictions

R1

Ship type notations

(Pt.5)

Mandatory Optional

Container ship Offshore service

vessel

Additional class notations

(Pt.6)

Mandatory Optional

Bow loading Clean

E0 NAUT RSCS DG Ice Clean BIS TMON E0 DYNPOS Clean Ice

E0 TMON

Container ship

Tanker for oil CSR

Offshore service vessel

Bow loadingESP

(+) (AUTR, A) (Design) (C)(AW, ICS) (C)


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DNV GL

Documentation requirementsRequirements to Builders and

Manufacturers to submit information

required for the Societys design

assessment process.

Certification requirements

Requirements to Builders to install

certified products on board the vessel.

In each part of the rules, detailed

requirements are summarized at the beginning

using a standard table format

with all necessary information included

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DNV GL 25

Ch.1 General requirements for materialsCh.2 Metallic materialsCh.3 Non-metallic materialsCh.4 Fabrication and testing


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DNV GL 26

General requirements for manufacture, survey and certification of materials used for

the construction or repair of hulls, equipment, boilers and pressure vessels and

machinery

Consistent with IACS requirements

E.g. through thickness testing of steel plates

Clarification of requirements for pipe fittings

To be delivered by approved manufacturer


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DNV GL 28

Became part of One

Rule Set project afterthe merger of DNV withGL

Broad internal involvement

Ship type expertsAll regionsAll disciplines

Class newbuilding,offshore,

ships in operation,advisory

software

Study of ships inoperation damage andcorrosion experience

More than 50% of the time used forconsequence studies to verify impact onscantlings and ensure satisfactorydesign and approval time

Completion together withour clients during 2015

Project:

Development of

new hull rules

2012 Oct 2013 20152011

Framework for the new rules

developed and reported


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DNV GL

To establish a set of rules using the strengths of the existing rule sets while

ensuring that the rules are:

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Clear, consistent and easy tounderstand

Fit for application to noveldesigns thus enhancing abilityto support future technologydevelopment

Improving efficiency in thedesign and approval process

Fit for future development withincreased consistency andtransparency

Based on modern principlesaccording to the IMO GoalBased Standard concept.

Develop user-friendly rules forhull structure which reflect thestate of the art technicalprovisions.

Ensure a smooth transition from oldto new rules


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DNV GL

Simple rules

for the smallest ships

for well proven shiptypes in

normal operation

need to be more conservative

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Accurate rules

needed for non-redundant structure

support design development

are adoptable to changing environment

are more transparent

support emergency response

Satisfactory accurate rules made user-friendly through improved software !

More advance analysis supported by the Rules and Class Guidance


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DNV GL 31

1864 1900 1953 1965 1990 Time

Knowledge

2020

Tabular

Empirical

Analytical

Computational

CSR

DNVGL


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DNV GL 32

CG LNG

with spherical

tanksCG LNG

with membrane

tanks

CG LGC

with prismatictanks

CG LGC

with

cylindrical tanks

Part 3 Hull Part 5 Ship Types Class Guidelines

Hull requirements for the

ship type

Additional requirements

for the ship type notation

Generic foundationCalculation procedures


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DNV GL 33

Part 3 Hull


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DNV GL 34

Part 3 Hull

One basis of hull structure rules for all

ship types

Improved consistency and transparency

in applied loads and acceptance criteria

Structured to support a typical design

process


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DNV GL

Content:

Application of the rules

Rule principles

Verification of compliance

Symbols and definitions

Loading manual and loading instrument

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Part 3 Hull


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DNV GL

DNV GL Rules Ch.2 General Arrangement Design

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Part 3 Hull

Technical requirements are in line with 1A1 and

100A5

Content:

Subdivision arrangements

Compartment arrangements

Access arrangement


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DNV GL

DNV GL Rules Ch.3 Structural Design Principles

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Part 3 Hull

Increased coverage of materials other than steel

Same structural idealisation as CSR (load points,

span definition etc.)

Ships in operation corrosion allowance accounted

for in the strength evaluation


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DNV GL

DNV GL Rules Ch.4 Loads

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Part 3 Hull

One set of dynamic loads for all ship

types
http://localhost/var/www/apps/conversion/tmp/scratch_1/WAVE%20LOADS_small_vessel.pptx


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DNV GL

DNV GL Rules Ch.5 Longitudinal Strength

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Part 3 Hull

Buckling capacity check improved based on LGL and

CSR

Hull girder ultimate strength check introduced for

some ship types based on CSR


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DNV GL

DNV GL Rules Ch.6 Hull Local Scantlings

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Part 3 Hull

Minimum thicknesses are based on 1A1 rules

Capacity formulas for yield check are further developed

All local strength scantling requirements defined in one

place (not repeated for deck, bottom, bulkheads etc.)

New software tools available for prescriptive hull local

scantlings checks

Transparent combination of hull girder stresses and local

stress components


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DNV GL

DNV GL Rules Ch.7 Direct strength analysis

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Part 3 Hull

Design verification by means of FEAand the calculation scope is based

on legacy rules (case by case for

special ships)

Partial ship structural analysis

allows:

Automatic yield check

Automatic buckling control

Local fine mesh analysis

New Finite Element Class Guidline

provides generic methodology formodelling, loading and evaluation.


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DNV GL

DNV GL Rules Ch.8 Buckling

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Part 3 Hull

Closed form method (CFM) Based on LGL and CSR

Accurate, especially on bi-axial buckling

Buckling tools available in NH software

Improved coverage of slenderness requirements for plates and

stiffeners

Improved coverage of buckling requirements for direct strength

analysis

Automatic buckling control in Genie

PULS and direct collapse simulation as alternative methods

New Class Guideline Buckling provides insight and supports

advanced analysis


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DNV GL

DNV GL Rules Ch.9 Fatigue

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Part 3 Hull

One consistent method for fatigue analysis applied

for all ship types

(Generally mandatory only for L > 150 m)

EDW based loads

Capacity calculation taken mainly from 1A1ules

Calculation scope same as 1A1 (Ship type based)


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DNV GL

Content of Ch.10:

Bow impact

Bottom slamming

Stern slamming

Sloshing

Wheel loading

Steel Coils Special hull structures:

Thruster tunnels

Sea chest

Box coolers

Stern frames

Retractable bottom

equipment

Berthing impact req.

Machinery foundations

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DNV GL

Ch.11 Hull Equipment, Supporting Structure and Appendages

Scope and calculation methods for foundations and supporting structure are kept

Ch.12 Opening and Closing Appliances (basically one to one with 1A1)

Ch.14 Rudders and Steering (based on 1A1, but IACS will publish revised UR S10

in 2015)

Ch.15 Stability (based on 1A1)

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DNV GL

The requirements are based on CSR, but simplified

Further simplifications introduced for L


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DNV GL 47

Part 5 Ship types

Requirements for ship type notations

Special and additional requirements

complementing the main class requirements

A consistent rule structure enabling easy

navigation through the rules

Combined ship type expertise from the two

legacy societies

Tailored calculation scope for each ship type


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DNV GL 48

Chapter 9 Offshore Service Vessels

Sec.1 General

Sec.2 Offshore service vessels

Sec.3 Anchor handling and towing vessels

Sec.4 Platform supply vessels

Sec.5 Standby vessels

Sec.6 Windfarm maintenance vessels

Section 1 General1 Introduction

2 Class notations

3 Definitions

4 Documentation

5 Certification

6 Survey and testing

Section 2 Offshore service vessels1 Introduction

2 Hull local scantling

3 Hull local scantling for ships assigned class notationOffshore Service Vessel +

4 Systems and equipment

5 Stability

6 Load line


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DNV GL

Hull structure consequence studies

Requirements are being validated

with extensive consequenceassessments

Using a fleet of more than 40 ships,

considering all relevant ship types of

length from 30m to 390m

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More than 100 vessels used as

reference for wave loadcalculations

Focus on:

scantling changes Fatigue life time

Efficient rule application in

design process


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DNV GL

Hull Structure - Software

The design wave concept, various failure

modes and associated acceptance criteria

requires extensive computational capability

Rule calculation tools are essential in

structural design development

DNV GL rules will be supported by powerful

tools enabling an efficient design process

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Modern rules

Modern tools


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DNV GL

Hull Structure - Software

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Nauticus HullPoseidon

DNV GL rules for hull structure will be supported by both

Poseidon and Nauticus Hull

Optimized for

DNV GL rules Container ship

Multi Purpose Vessel

Optimized for

DNV GL rules Gas Carrier

Ore CarrierOSVPassengerCar CarrierOthers

CSR H Bulk/Tanker

*existing rule sets (CSR/ DNV/ GL) will continue to be supported by respective tools as before


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DNV GL

Hull structure Summary of

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A consistent rule structure

enabling easy navigationthrough the rules

Modern and

comprehensible with new

physical consistent rule

foundation

Significant improvement

of software support

More efficient strength

analysis by utilizing

computational capability

Overall 38 ship type

notations


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DNV GL

Hull structure Summary of

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The new advanced load concept is a major step towards a more

realistic representation of the environmental loads.

Along with our state-of-the-art capacity models, this concept will

increase the consistency in the safety level applied for the

complete hull structure.

In addition, this approach will also accommodate the challengesrelated to development of novel and unusual designs.


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SAFER, SMARTER, GREENER

www.dnvgl.com

Thank you for your attention.

DNV GL Rules program

2015-09.23 Designer Seminar Turku

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Transcript of 2015-09.23 Designer Seminar Turku