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Article in DPC June 2007
Van Oord’s TSHD HAM 318
Vibracon Manual v.2
3D measurements
Vibracon® SM Design Change
SSCV Hermod
Article in SKF’s Evolution 2/04
Front Cover Ship Repair
On board Berge Stahl
On board J.F.J. DE NUL
World's Largest Water Jet
Article in DPC October 2003
New! - Vibracon® SM Low Profile
Vibracon® Shock Testing
Vasco da Gama - largest dredger of the world
MV 'Three Rivers'
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Machine Support's Vibracon Mount Passes
USN Heavy
Weight Hi-Impact Shock Testing - AGAIN!
The Vibracon is a self-leveling, adjustable and reusable mechanically stiff
chock used for mounting of equipment in military, marine and industrial
applications. As part of establishing engineering implementation guidelines the
United States Navy has conducted Heavy Weight Hi-Impact Shock Test per MIL
STD 901D of the Vibracon mounts. These tests examine equipment survivability
under accelerated gravity forces at a sudden impact and high velocity from
various directions simultaneously.
Machine Support has supplied Vibracon Mounts since 1999 to the United States
Navy for specific main and auxiliary machinery applications after the first
heavy weight shock test. Years of technical and economic evaluations have
concluded that the Vibracon mounting system introduced on the MCM Class ships
should be implemented in more critical alignment and mounting applications
through out the fleet. To advance the technology within the Navy the Naval
Sea Systems Command (NAVSEA) placed the Vibracon mount as key technology for
evaluation the Cumbersome Work Practices (CWP) Group.
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Vibracon® US Navy Shock Test
Click here for movie (1.3 Mb - Mpg)
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Heavy Weight Testing in March, Medium Weight Testing of December 2001 and most
recently Heavy Weight Testing of January 2003 have examined various configurations
and materials. The Vibracons tested ranged from the commercial -off-the-shelf
(COTS) and High Shock versions to the new Low Profile configuration fabricated
from a range of materials including carbon steel, alloy steel, stainless steel
and K-Monel 500.
During the testing various Vibracon mounts were subjected to gravity accelerations
consistent with submarine frame mounted and hull mounted equipment and various
standard engine and pump configurations plus with disproportionate masses.
Disproportionate masses are defined as components with high center of gravity
(CG) with small bolting patterns or extremely stiff masses of low CG with large
bolting patterns. The pass/fail criteria for all the testing were for the mounts
to adjust as new after the test and no damage to the equipment or foundations.
The Vibracon mounts exceeded expectations in many scenarios as the tests were
designed to fail the mounts to establish the upper end boundaries of the Vibracon.
Vibracon mount is now cleared implementation for all applications in submarine,
surface combatant and non-combatant vessels. Component selection guidelines for
implementation of the Vibracon will be published by NAVSEA and Machine Support
within the next few months.
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