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EXPERIENCE

Dynamic Signal Analysis International Corporation ("DSA International") is a consulting engineering and systems development company that provides specialized technical services and products to a wide range of industry sectors that utilize rotation machinery including:

  • Routine predictive maintenance and consulting services for sewage plants, bulk material handling facilities, ski lifts, ships, cement plants, mining equipment, large coal conveyors, mining trucks, grinding mills and steel mills
  • Pulp and paper industry - designed, built and installed a 64 channel continuous on-line vibration monitoring and diagnostic system, torsional analysis of drive systems, modal analysis and general diagnostics and troubleshooting
  • Petrochemical industry - Check-Mate expert system software for analysis and trending of data for large compressor and pumping systems, diagnostics, acoustic signature analysis, vibration analysis and predictive maintenance
  • Extensive marine experience as detailed below

Testing

  • Control Valve Manufacturer - engineering investigation into the design and operation of large flow control valves
  • Beta testing new DSA International developed non-contacting telemetry system for collecting torque, strain and vibration data off high speed rotating shafts
  • Non-destructive testing of 48" diameter hydraulically driven brushcutter at DSA International's research facility
  • Shaker table testing of vibration isolation system for mobile video surveillance system
  • Tensile tests to 60,000 lb. on elastomeric couplings
  • Torque testing to 300,000 in.-lb. of various sizes of flexible couplings
  • Damping and stiffness coefficient testing of coupling inserts
  • Measurement of gearbox backlash to 0.8 arc-seconds
  • Efficiency tests of non-involute profile gearbox

Software Projects:

  • Conceptual hardware and software designs for Health and Usage Monitoring ("HUMS") systems for US Air force and Navy
  • Automated self learning diagnostic system for US Airfares research facility. Using rule-based expert system and neural-network based novelty detection system
  • Software utility for display and analysis of US Navy helicopter track and balance data
  • Principal consultants to Cubic Defense Systems on health and usage monitoring systems for H53E superstallion helicopter
  • In conjuction with Honeywell Technology Center, developed Rotor Analysis and Monitoring System ("RAMS") for detection of rotor head component failure in US Navy helicopters

Proposal Preparation

  • Prepared on behalf of various large US defense contractors proposals on Condition Based Maintenance System ("CBM") and diagnostic systems

 
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 Turbine  Helicoptor Mining Truck
 Walkingbeam  Dragline  Refinery
 

MARINE INDUSTRY

DSA International's consultants have extensive shipboard experience in providing machinery condition surveys during re-fits or new construction, sea-trial acceptance tests, and comprehensive mechanical troubleshooting using the latest in vibration analysis instrumentation.

These services include:

  • Rotating Machinery Diagnostics
  • Mechanical Condition Surveys
  • Vibration Acceptance Tests
  • Torsional and Lateral Vibration Analysis
  • Torque/HP Measurements of Propulsion Drives
  • Noise Surveys and Evaluation
  • Structural Dynamic Testing

The benefits of vibration analysis are numerous. Troubleshooting of rotating equipment problems can be expedited. Untimely failures of machinery can be avoided as well as to effectively plan maintenance based on condition thereby eliminating or reducing costly overhauls or unnecessary replacement of spare parts.

As members of the Association of Consulting Engineers of Canada along with individual memberships in the ASME, C.I.Mar.E, and the Vibration Institute, DSA International can provide a high level of technical service to operators or contractors in the marine industry. A partial list of DSA International's assignments over the past few years is outlined below:

FIELD ASSIGNMENTS ON MARINE VESSELS:

BC FERRIES CORPORATION
SKEENA QUEEN - structural dynamics testing, modal analysis, vibration analysis, torsional analysis and audible noise study
QUEEN OF CAPILANO - vibration analysis, modal analysis and diagnostics on root cause of turbocharger failure
QUEEN OF CUMBERLAND - vibration analysis

VERSATILE PACIFIC SHIPYARDS
Baseline vibration analysis, diagnostics and dynamic testing of main and auxiliary drives and all on board essential rotating machinery during construction and endurance trials for the CCG's type 1200 Icebreaker, "HENRY LARSEN"

PORTS CANADA
Vibration and analysis of the propulsion shafting inboard the service icebreaker, "H.M. WILSON"

CANADIAN COAST GUARD
Vibration analysis and condition assessment of all inboard rotating machinery and propulsion drives during PAPA Trials for the CCG's Type 1100 Icebreaker, "GEORGE PEARKES"

CANADIAN COAST GUARD
Vibration analysis and evaluation of the marine engine resilient mounts during ice trials for the CCG's Type 1100 icebreaker, "EDWARD CORNWALLIS"

RIVTOW WEST COAST MANLY SHIPYARD
Structural vibration analysis on the Crown Forest boom boats, "SORTER 1" and "SORTER 2"

VERSATILE PACIFIC SHIPYARDS
Vibration analysis and condition assessment of the main engine reduction gearbox for the MV "KASZUBI II"

BC PACKERS QUEENSBORO SHIPYARDS
Vibration analysis and diagnostic evaluation of the main transmission inboard the MV "MARINET"

VERSATILE PACIFIC SHIPYARDS
Vibration testing and flexure investigation of the radar main mast structure during trials for the Naval Research Vessel CFAV "ENDEAVOUR"

P&O LINES
Vibration surveillance of the auxiliary diesel alternators for the cruise vessels, "PACIFIC PRINCESS" and "ISLAND PRINCESS"

VERSATILE PACIFIC SHIPYARDS
Vibration and torque measurement acceptance tests of the main propulsion shafts during sea trials of the CCG's SAR 500 cutter, "GORDON REID"

RIVTOW WEST COAST MANLY SHIPYARDS
Structure-borne diagnostic vibration analysis during sea trials for the TSR vessel CFAV "SECHELT"

BC PACKERS QUENNSBORO SHIPYARDS
Diagnostic vibration analysis of the propulsion drive inboard the MV "OCEAN STAR"

IMF YARROWS
Vibration and torque measurement acceptance tests of the main propulsion shafts during sea trials of the CCG's SAR 501 cutter, "JOHN JACOBSON"

COMINCO MINES
Vibration analysis and balancing of the supply hovercraft propulsion drives and propellers

VANCOUVER SHIPYARDS/BC FERRIES
Vibration acceptance tests for the main propulsion shafting following re-fit of the BC Ferry passenger vessel, "QUEEN OF NEW WESTMINSTER"

VANCOUVER SHIPYARDS
Vibration analysis and condition assessment of the splitter gearboxes for the Seaspan "RIGGER" and "FORESTER" log barges

US NAVY
Vibration analysis and ship visits on USS Wasp LHD-1 (helicopter dock loading ship) and USS Caron DDG-963 Kidd Class guided missile destroyer

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