West Metro Acoustics Group, Inc. (WMAG) has an extensive background in acoustic, aerodynamic and vibration diagnostics and sound suppression systems.  WMAG was selected to design and build hybrid, reactive silencers for the life support system onboard the NASA Space Shuttle as well as the solid fuel processors for the booster rockets!

Conversely, WMAG expertise was utilized in the development of deep-dive technology (-20 dBA hydro space) for naval vessels, marine salvage and oceanographic exploration. For military and commercial Wind Tunnels, WMAG is repeatedly tasked for analytical design, computer simulation, fabrication and testing of all aeroacoustic systems for low-Mach through hypersonic flows.  WMAG has furnished engineering services, design & build systems for all major power generation (EPG) equipment manufacturers requiring maximum noise attenuation.  Proprietary computer simulations saved an EPG supplier over $120,000 on a single project!  Our analysis and acoustic testing have been the foundation for performing arts’ theater design, worldwide.  WMAG was commissioned to provide acoustic & vibration analysis, design and testing services for the new JFK International Air Terminal #4 in New York, including Concord (SST) operations.  Following is a summary of the engineering & product support WMAG can offer:

** ACOUSTIC TESTING, AERODYNAMICS / THERMODYNAMICS & VIBRATION

ANALYSIS for IN SITU and/or LABORATORY ENVIRONMENTS **

WMAG maintains strict calibration on a wide variety of aerodynamic analysis, sound measuring, vibration testing and meteorological monitoring instrumentation.  These portable systems are utilized in prototype testing, field analysis and in situ certification.  Portable, real-time frequency analyzer system can accommodate a microphone spread more than 250 feet and data log complete spectrum/intensities from 0.7 Hz to 22,400 Hz at +/- 0.1dB tolerance every 0.001 seconds.  Dedicated computer system supports fast Fourier transforms (FFT) / time correlation for acoustic and vibration measurement and analysis.  Forced vibration system provides empirical data on intrinsic impact/vibration isolation capabilities of any building or structure.  Aerodynamic tests are accomplished in a computer controlled, open circuit, low-Mach wind tunnel for turbulent or laminar flows.  WMAG’s commitment to system analysis extends to the maintenance of a portable Aerodynamic Diagnostics Laboratory, complete with flow visualization capabilities and analytic instrumentation.  The Aero Lab is an essential element in product and system testing for compatibility with the clients’ environmental requirements, CFD computer model calibration/verification and long-term system stability and reliability. 

** SYSTEM CONSULTATION, PROJECT DEFINITION & MANAGEMENT **

WMAG’s principal forte is the control of environmental, industrial, architectural and blower / fan / HVAC system noise, vibration and aeroacoustics. Our engineers utilize current, state-of-art instrumentation and recorders (ANSI/ISO calibration standards) for problem analysis and solution (compliance) certification.  An integral part of our engineering program is the concept of computerized predictive acoustic modeling, computational fluid dynamics (CFD) for volume/mass flow analysis and computer aided design.  

WMAG computer models have been repeatedly tested and validated in scores of critical systems including large scale aerospace structures, submarine applications and high reliability telecommunication equipment packages.

These 3-dimensional computer models allow WMAG to analyze hundreds of material array’s and/or subsystems, digitally synthesize their implementation and accurately predict their performance.  It should be noted that the WMAG computer aeroacoustic model has the capability to implement infinite sound attenuation for all engine-generator elements not under active analysis.  

Further, each of the engine-generator’s component noise sources may be individually analyzed to match specific performance characteristics to the appropriate noise abatement hardware configurations.  Existing buildings can be empirically tested for acoustic and vibration containment capabilities and new structures may be computer modeled to assure proposed construction will meet acoustic and vibration criteria.

 ** SYSTEM DESIGN **

Engineering is supported by a design department consisting of senior designers and draftsmen.  Together, our aeroacoustic engineers and design group will generate complete specifications, conceptual illustrations and/or 3-dimensional AutoCAD design drawings to meet the acoustical, physical, thermodynamic and aerodynamic criteria.  Due to WMAG’s intimate knowledge of equipment manufacturing, clients can be assured of practical designs which may be economically implemented.

WMAG has earned a positive reputation within the international engine-generator community for dependable, acoustical engineering services in aerodynamics, acoustic diagnostics, system integration (aeroacoustic packaging) and manufactured sound suppression systems for packaged power applications.  Engine distributors have entrusted WMAG for silencer retrofits as well as complete enclosure packages, for new and remedial installations, to meet stringent acoustical criteria.  

WMAG has long been recognized for its leadership in these fields and so it is with great anticipation that we will look forward to working with you on future projects.  Moreover, we would like to assure you that in selecting WMAG, you can do so with great confidence in our ability to deliver what few, if any, other companies can provide.   

West Metro Acoustics Group, Inc.

2909 Edgewood Avenue North
Crystal, Minnesota  55427-3016
United States of America

(763) 544-3129 | Mark’s Direct
(612) 220-7028 | Scott’s Mobile