Single-source responsibility, Unitizing at installation site, 2 non-unitized packaging – Caterpillar TAURUS 70 User Manual

Page 20: Shaft coupling, Torsional vibration analysis, Lateral vibration analysis

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Turbomachinery Package Specification

Taurus

70 Compressor Set and Mechanical Drive

Single-Source Responsibility

Solar is able to provide overall coordination to ensure that the unitized package will
perform to its full potential with a minimum of installation time and cost. Performance
characteristics of the driver and driven equipment are analyzed to provide an optimum
match at design and off-design conditions. Installation drawings and technical manuals
are prepared for customer use, detailing mechanical/electrical interface and alignment
instructions. Consistency in surface preparation and painting, preservation, shipment,
and warranty is ensured by Solar’s Quality Assurance.

Unitizing at Installation Site

Solar’s Customer Services personnel can interface and unitize the equipment at the
installation site as required.

5.1.2 Non-Unitized

Packaging

When the gas turbine package is furnished without driven equipment, Solar cannot
ensure proper interface between the gas turbine and the driven equipment. Solar can
offer optional equipment and services to facilitate the task of interfacing the gas turbine
package with the driven equipment, including the following:

Shaft Coupling

The driver coupling hub may be furnished machined and ready for fitting to the shaft by
others. The driven equipment coupling hub is pilot bored for machining by others, unless
a driven equipment shaft end detail drawing is furnished at the time of order definition. A
coupling guard can also be included.

Torsional Vibration Analysis

Solar is able to define operating speeds at which excessive vibration stress in the drive
train might occur. Solar should be furnished, at the time of order definition, with mass
elastic data for the shaft coupling and the rotating equipment elements, including polar
moments of inertia and torsional stiffness. In lieu of mass elastic data, a drawing of
rotating elements together with definition of materials may be used.

Lateral Vibration Analysis

Using the same data furnished for the torsional vibration analysis, Solar can define
operating speeds at which stress in each piece of rotating equipment, including the
turbine gearbox if required, and driven equipment, might occur due to excessive
vibration. The data should be provided to Solar at the time of order definition. Once the
analysis is completed, a written report is provided.

© 2009 Solar Turbines Incorporated. All rights reserved.

TPS70CSMD/309

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