Seakeeper 3 Manuel utilisateur

INSTALLATION

MANUAL

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SEAKEEPER 3 90378 4

SEAKEEPER 3

INSTALLATION MANUAL

JUNE 2018

Contents:

Section 1 – Mechanical Installation

Section 2 – Electrical Installation

Section 3 – Cooling Installation

Section 4 – Startup

Section 5 – Installation Checklist and Required Supplies

44425 PECAN COURT, SUITE 151

CALIFORNIA, MARYLAND, 20619, U.S.A

PHONE: 410-326-1590

FAX: 410-326-1199

E-MAIL: [email protected]

JUNE 2018, Revision 4

INSTALLATION MANUAL

INSTALLATION

MANUAL

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SEAKEEPER 3 90378 4 1 of 15

Section 1: MECHANICAL INSTALLATION

1.0 Introduction

This document is intended to give details and guidance to a boat builder or equipment installer

to install the Seakeeper 3. The Seakeeper 3 is capable of producing loads up to 8.60KN (1,934

lbs.) at each of the four mounts and careful consideration should be given to foundation design

to insure it is capable of transferring these loads into the hull. These loads do NOT include

vessel motion accelerations, such as vertical slam loads which can be high for higher speed

vessels.

There are two methods of installing the Seakeeper 3:

1) Longitudinal Bolt-In Installation

2) Transverse Bolt-In Installation

It is assumed that the installer is familiar with mounting using mechanical fasteners to

marine structures and has performed structural analysis to assure the structure to which

the Seakeeper mounts can properly transfer the loads the Seakeeper creates into the hull

structure. If the installer has any doubt about the ability of the structure to transfer the

loads to the hull then a licensed naval architect or marine engineer should be contacted

to do a structural analysis.

The installer should review the following list of reference drawings to ensure the installation

procedure is fully understood.

Reference Drawings

90388 Seakeeper 3 Hardware Scope of Supply

90374 Seakeeper 3 Installation Details – Bolt in Method

90376 Seakeeper 3 Cooling Water Schematic

90362 Seakeeper 3 Installation Template Kit

90377 Seakeeper 3 Cable Block Diagram

FIGURE 1 – SEAKEEPER 3

INSTALLATION

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SEAKEEPER 3 90378 4 2 of 15

Section 1: MECHANICAL INSTALLATION

1.1 Precautions

•The Seakeeper must only be lifted from the supplied lifting eyes (See Section 1.4).

•The Seakeeper flywheel is supported by precision bearings. Make certain while

unpacking and lifting the Seakeeper assembly to NOT drop or impart mechanical shock

as damage to bearings could result.

•While handling / installing the Seakeeper assembly, protect exposed hydraulic brake

cylinder rods (See Figure 1) from scratches or damage as this could lead to premature

seal failure and oil leaks.

•While handling / installing the Seakeeper assembly, do not allow electrical fittings that

exit bottom of the Seakeeper enclosure to come in contact with any surface or object as

this could damage the fittings and potentially affect the vacuum integrity of the

enclosure.

•Exercise care to protect the painted finish as damage to finish could lead to early

appearance degradation of the installed Seakeeper.

1.2 Selection of Seakeeper Installation Location

Selection of mounting location of the Seakeeper should consider the following desirable

features:

The Seakeeper should be installed aft of amidships to minimize high

acceleration loadings due to hull/wave impacts during operation at

high speed or in large waves. If the only possible Seakeeper location

is forward of amidships then the installer should have Seakeeper

review the installation location prior to finalizing the design.

•Overhead access or sufficient clearance for removal / re-installation of the

Seakeeper for overhaul in future years.

•The Seakeeper should be installed in a dry space to minimize effects of corrosion.

•Clearance for all recommended scheduled maintenance and any repairs is necessary,

(See Figure 2)

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SEAKEEPER 3 90378 4 3 of 15

Section 1: MECHANICAL INSTALLATION

VIEWS SHOWING RECOMMENDED CLEARANCES AROUND THE SEAKEEPER FOR USE OF HANDTOOLS,

EASE OF MAINTENANCE, INSTALLATION, AND PROPER OPERATION.

FIGURE 2 – INSTALLED SEAKEEPER CLEARANCE CONSIDERATIONS

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SEAKEEPER 3 90378 4 4 of 15

Section 1: MECHANICAL INSTALLATION

FIGURE 3 – BEAMS CLEARANCE CONSIDERATIONS

Refer to Figure 3 for recommended clearances to transverse or longitudinal beams.

Clearances aft of the Seakeeper are shown to provide access for regular scheduled

maintenance.

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SEAKEEPER 3 90378 4 5 of 15

Section 1: MECHANICAL INSTALLATION

Safety

There is a large torque about the gimbal axis when the Seakeeper is

precessing. Seakeeper cover panels are provided to prevent personnel or

equipment from contacting the Seakeeper while it is in operation. These covers

should not be stepped on, or have anything placed on top. The covers should

always be in place during operation. If it is ever necessary to access the

Seakeeper while the flywheel is spinning, the Seakeeper must be locked at the

display to stop the Seakeeper from precessing. Seakeeper regular scheduled

maintenance should not be attempted unless the Seakeeper is locked and the

flywheel has stopped spinning.

The Seakeeper should be treated with the same respect one gives a high speed

rotating propeller shaft or engine shaft.

Noise/Soundproofing

Seakeeper noise has been measured under steady state conditions (no wave load) in

Seakeeper's lab and in our test boat. The steady state noise is typically in the range of 64-66

dBC un-weighted. As the frequencies emitting the highest sound pressures are low (like other

marine machinery), it is recommended that the Seakeeper be installed in a machinery space

that is already treated with soundproofing.

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SEAKEEPER 3 90378 4 6 of 15

Section 1: MECHANICAL INSTALLATION

1.3 Transport and Unpacking

1.3.1 Transport

1) Use a Seakeeper provided shipping crate for transport, part number 11358. Overall

dimensions of a fully packed crate are 40.5”Lx40.5”Wx43”H with a weight of 766

lbs(348kgs).

2) Do not stack Seakeeper shipping crates.

3) Both Air and Ground transport are acceptable.

4) Seakeeper shipping crates must be transported in environmental conditions between

-20°C and 60°C.

1.3.2 Unpacking Crate

1) Reference Seakeeper Drawing No. 90388, Seakeeper 3 Hardware Scope of Supply for

items that ship with the corresponding Seakeeper model.

2) Remove covers, electrical components, display, cables, and misc. items and set aside.

3) Remove packing materials that secure Seakeeper assembly inside the crate.

4) Attach a spreader bar (Seakeeper #80283) to the two lifting eyes located on the top of

the Seakeeper enclosure. Stay clear of any other parts on the Seakeeper. The

Seakeeper 3 weighs 249 kg (550 lbs). See Figure 4 below.

FIGURE 4 – LIFTING ARRANGEMENT

Spreader Bar

Lifting Eyes

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SEAKEEPER 3 90378 4 7 of 15

Section 1: MECHANICAL INSTALLATION

1.4Longitudinal Bolt-In Installation

1.4.1 Check and Preparation of Hull Structure

The Seakeeper 3 can be affixed to the hull structure using two methods 1) Longitudinal Beam

Bolt-In installation or 2) Transverse Beam Bolt-In installation. Neither option affects the

operation of the Seakeeper. However, one option might ease the installation process or allow

for a larger service envelope. Depending on the structure to which the Seakeeper is fastened,

blind threaded holes or thru-bolting can be utilized.

Refer to Seakeeper Drawing No. 90374, Seakeeper 3 Installation Details – Bolt in Method.

Important dimensional and load information is given in this drawing that will impact the design

details of the structure that will receive the Seakeeper. It is assumed that a proper structural

analysis has been performed for the hull structure to which the Seakeeper will be fastened to

insure proper strength margins for the loads the Seakeeper will create during operation.

The hull structure supporting the Seakeeper should be installed so the Seakeeper is parallel to

the waterline. In addition, the four areas on top of the beams on which the feet of the

Seakeeper foundation and isolation gaskets will rest, need to be co-planar within .06”

(1.5 mm) to minimize potential distortion of Seakeeper support frame when installed. The

isolation gaskets are only used on dissimilar metal to metal contacts

Seakeeper offers an optional installation template kit, P/N 90362, which contains four plates that

mimic the mating surfaces of the four feet located on the Seakeeper’s foundation. These plates

have 4 holes located at the same centers as the mounting holes on the Seakeeper. The fixture

locates the hole patterns at the proper spacing both in the fore-aft direction and the port-

starboard direction. See Figures 5 below. Once assembled, the fixture can be used to check

clearances and alignment of the hull structure.

Note: Do NOT use the installation fixture to establish the Seakeeper envelope

dimensions. Refer to Drawing No. 90374 for envelope dimensions. A 3-D model of the

Seakeeper is available on the Seakeeper website (www.seakeeper.com) to aid in

designing the Seakeeper foundation and the space around the Seakeeper.

NOTE: MAKE SURE NO OBSTRUCTIONS FROM THE HULL STRUCTURE CAN BE SEEN WITHIN THE INSIDE

OF THE INSTALLATION TEMPLATE KIT (INSIDE THE MARKED RED LINES). REFERENCE SEAKEEPER

DRAWING NO. 90374.

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SEAKEEPER 3 90378 4 8 of 15

Section 1: MECHANICAL INSTALLATION

FIGURE 5 – EXPLODED VIEW OF INSTALLATION FIXTURE

CAUTION: Tight clearances from cable guide bands to hull structure. See above figure

for dimensions and reference Seakeeper drawing NO. 90374 for complete Seakeeper 3

envelope.

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