Section
1 Plans and particulars
1.1 Plans
1.1.1 The following
plans and particulars as applicable are to be submitted for consideration:
- Crankshaft assembly plan (for each crankthrow).
- Crankshaft details plan (for each crankthrow).
- Thrust shaft or intermediate shaft (if integral with engine).
- Output shaft coupling bolts.
- Main engine securing arrangements where non-metallic chocks are
used.
- Type and arrangement of crankcase explosion relief valves.
- Arrangement and welding specifications with details of the procedures
for fabricated bedplate, thrust bearing bedplate, crankcases, frames
and entablatures. Details of materials welding consumables, fit-up
conditions fabrication sequence and heat treatments are to be included.
- Schematic layouts of the following systems:
Starting
air.
Fuel Oil.
Lubricating oil.
Cooling
water.
Control and safety.
Hydraulic oil.
- Shielding of high pressure fuel pipes.
- Combustion pressure-displacement relationship.
- Crankshaft design data as outlined in Pt 5, Ch 2, 3 Design.
- High pressure parts for fuel oil injection system with specification
of pressures, pipe dimensions and materials.
- For engine control, alarm monitoring and safety systems, the plans
and information required by Pt 6, Ch 1, 1.2 Documentation required for design review of the Rules for Ships.
- For electronically controlled engines, the plans and information
required by Pt 5, Ch 2, 1.1 Plans 1.1.6.
1.1.2 The following
plans are to be submitted for information:
- Longitudinal and transverse cross-section.
- Cast bedplate, thrust bearing bedplate, crankcase and frames.
- Cylinder head assembly.
- Cylinder liner.
- Piston assembly.
- Tie rod.
- Connecting rod, piston rod, and crosshead assemblies
- Camshaft drive and camshaft general arrangement.
- Shielding and insulation of exhaust pipes.
- Details of turbochargers, see
Pt 5, Ch 2, 11 Turbochargers.
- Operation and service manuals.
- Vibration dampers/detuners and moment compensators.
- Thrust bearing assembly (if integral with engine and not integrated
in the bedplate).
- Counterweights, where attached to crankthrow, including fastening.
- Main engine holding down arrangement (metal chocks).
1.1.4 For engine
types built under license, it is intended that the above documentation
be submitted by the Licensor. Each Licensee is then to submit the
following:
- A list, based on the above, of all documents required with the
relevant drawing numbers and revision status from both Licensor and
Licensee.
- The associated documents where the Licensee proposes design modifications
to components. In such cases a statement is to be made confirming
the Licensor’s acceptance of the proposed changes.
In all cases a complete set of endorsed documents will be required
by the Surveyor(s) attending the Licensee’s works.
1.1.5 Where engines
incorporate electronic control systems, the following additional information
is to be submitted:
-
A general overview
of the operating principles, supported by schematics explaining the
functionality of individual systems and sub-systems. The information
is to relate to the engine capability and functionality under defined
operating and emergency conditions such as recovery from a failure
or malfunction, with particular reference to the functioning of programmable
electronic systems and any sub-systems. The information is also to
indicate if the engine has different modes of operation, such as to
limit exhaust gas emissions and/or to run under an economic fuel consumption
mode or any other mode that is electronically controlled.
-
Operating manuals
which describe the particulars of each system and, together with maintenance
instructions, include reference to the functioning of sub-systems.
-
A risk-based analysis
of the mechanical, pressure containing, electrical, electronic and
programmable electronic systems and arrangements that support the
operation of the engine. The analysis is to demonstrate that suitable
risk mitigation has been achieved in accordance with Pt 5, Ch 2, 4.2 Risk-based analysis.
-
Details of hydraulic
systems for actuation of sub-systems (fuel injection or exhaust),
to include details of the design/construction of pipes, pumps, valves,
accumulators and the control of valves/pumps. Details of pump drive
arrangements are also to be included.
-
Quality plan for
sourcing, design, installation and testing of all components used
in the fuel oil and hydraulic oil systems installed with the engine
for engine operation.
-
Fatigue analysis
for all high pressure fuel oil and hydraulic oil piping arrangements
required for engine operation where failure of the pipe or its connection
or a component would be the cause of engine unavailability. The analysis
is to concentrate on high pressure components and sub-systems and
recognise the pressures and fluctuating stresses that the pipe system
may be subject to in normal service.
-
Evidence of type
testing of the engine with the programmable electronic system, or
a proposed test plan at the engine builders with the programmable
electronic system functioning, to verify the functionality and behaviour
under normal operation and fault conditions of the programmable electronic
control system.
-
Schedule of testing
at Engine builders, pre-river trial commissioning and river trials.
The test schedules are to identify all modes of engine operation and
the river trials are to include typical port manoeuvres under the
intended engine operating modes. The schedule is to include:
-
testing and trials
to demonstrate that the engine is capable of operating as described
in Pt 5, Ch 2, 1.1 Plans 1.1.5;
-
tests to verify
that the response of the complete mechanical, hydraulic, electrical
and electronic system is as predicted for the intended operational
modes; and
-
testing required
to verify the conclusions of the risk-based analysis.
The
scope of these tests is to be agreed with LR.
1.1.7 For Turbochargers,
the following plans and particulars are to be submitted for information:
- Cross sectional plans of the assembled turbocharger with main
dimensions.
- Fully dimensioned plans of the rotor.
- Material particulars with details of welding and surface treatments.
- Turbocharger operating and test data.
- A selected turbocharger is to be type tested.
1.1.8 Where considered
necessary, Lloyd’s Register (hereinafter referred to as ‘LR’)
may require additional documentation to be submitted.
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