Defense Ground Vehicle Solutions

Our mission is to provide complete, customer-specific solutions for sound, vibration, and shock problems in the North American defense market. From concept to fully engineered, manufactured systems – GLSV has a deep history of supporting ground combat vehicle programs through engineering, design, analysis, prototype, testing, and production.

Ground Vehicle Programs GLSV Supports

M-60
M-88
M48A5
Buffalo Trailer
M113
MLRS
Bradley
JLTV
STRYKER

MHU-83
HMMWV
AAV
FMTV-A2
5KW TQG
MMPV
Panther Type II
RG-31
M1270

GCV
FCS
ACV
AMPV
PB-NSCV
Crusader
LAV
RST-V

APD
AMEP
SMET
M-10 Booker
XM 30
RCV
M967

GLSV + Booker (LRIP)

Exhaust systems

GLSV is supporting General Dynamics Land Systems in production of the M10 Booker combat vehicle. GLSV is producing engine exhaust systems and cooling air outlet seals for the Booker, the result of our turnkey solution development for these systems. GLSV executed the design, analysis, prototype builds and qualification testing to help GDLS meet the acoustic and flow performance goals for the engine exhaust and cooling air flow. GLSV is a trusted teammate on vehicle development programs, with the agility to balance competing requirements and meet aggressive performance targets with high performing solutions.

Photo courtesy of the U.S. Army. Read article here.

A live fire demonstration of the Army’s newest and most modernized combat vehicle, the M10 Booker, marks the conclusion of the M10 Booker Dedication Ceremony at Aberdeen Proving Ground in Aberdeen, MD., on April 18, 2024. (U.S. Army photo by Christopher Kaufmann)

GLSV + Stryker

Exhaust systems

GLSV was contracted to execute a development effort to provide a fully engineered exhaust system for the U.S. Army’s Stryker A1 armored fighting vehicle.

GLSV designed, engineered, prototyped and qualified the new exhaust system and successfully completed testing. GLSV customized the exhaust to maximize the acoustic performance for a tight space claim while meeting all environmental requirements, such as shock, vibration and temperature. GLSV currently is in full-rate production.

Compared to earlier versions of the double-hull Stryker, the upgraded Stryker A1 has superior engine power, which should result in greater mobility in combat. The Stryker A1 family has seven variants on a common vehicle platform: an anti-tank guided missile vehicle; commander’s vehicle; engineer squad vehicle; fire-support vehicle; infantry carrier vehicle; mortar carrier vehicle; and medical evacuation vehicle.

Stryker A1 exhaust

Photo courtesy of General Dynamics Land Systems.

Stryker A1 cooling duct

Photo courtesy of General Dynamics Land Systems.

GLSV + Stryker

Cooling ducts

GLSV also was contracted for the design optimization, integration, prototyping and testing of a noise-attenuated Cooling Outlet Duct for the Stryker A1 vehicle upgrade. GLSV developed a high-performance solution for attenuating noise at the outlet. We currently are in full-rate production on the cooling ducts, concurrently with the exhaust system.

glsv + jltv

Exhaust Systems

GLSV was awarded a production supply contract for a newly developed quiet muffler onboard the Joint Light Tactical Vehicle (JLTV), built by Oshkosh Defense. This muffler was developed in-house by GLSV, taking it from initial concept to a fully operating production line in 8 months.

View Case Study >

Powertrain Integration for the US Army

Exhaust Systems

GLSV Inc. worked with the US Army Ground Vehicle Systems Center (GVSC) to integrate new powertrain technology that will set the stage to provide leap-ahead capabilities for the US military’s vehicle fleets. The technology demonstrator, known as the APD, includes an advanced combat engine, transmission, integrated starter generator, modular batteries, and thermal management system. The APD initiative began in 2015 to mature critical technology that could enable a more revolutionary future vehicle platform.

GLSV engineered, developed, integrated, and manufactured a custom exhaust system, cooling plenum, engine mount system, a mounting system for the controller, and mounts for the powertrain cooling system’s advanced heat exchanger. GLSV also integrated and manufactured all of the hull modifications for the demonstrator vehicle.

Turn-Key Solutions

Exhaust Systems

GLSV has specialized in the design and production of custom engineered exhaust systems for both Military and Commercial applications for over 23 years. Our custom solutions can meet stringent performance requirements, tight space claims, and accommodate complex transitions, with the ultimate goal of designing a durable, qualified exhaust system that is easily manufactured and producible.

Learn more about our exhaust systems >

Auxiliary power units

GLSV is a full-service provider of electric power generation systems for DoD applications. We have completed ground up development of Auxiliary Power Units (APU) and range extending power packs for hybrid and all-electric vehicles.

We integrate commercially available engine and generator hardware with custom cooling, fuel, control and electrical systems into fully self-contained units to provide high voltage DC and AC export power. We have designed, built and tested systems, ranging from 2 to 110 kW, to meet the rugged demands of austere environments.

We’ve developed a custom control scheme and electrical architecture for compatibility with the Tactical Microgrid Standard (TMS 3071) along with J1939 CAN communication. Our engineering expertise in noise, vibration and thermal management gives us the ability to balance competing requirements such as size, weight, power output, heat rejection and acoustic performance.

Vehicle signature management

GLSV has a long history of helping our customers manage the acoustic signature of their ground combat vehicles. We use a combination of simulation software and analytical prediction tools, augmented by field testing to measure and collect acoustic data.

Our simulation models are used for transfer function modeling, which feeds into our proprietary vehicle noise budgeting software developed by GLSV. We use this software to develop noise/vibration budgets for concept vehicles, assess vehicle noise performance, and to assess the impact and effectiveness of different acoustic treatments.

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Powertrain Isolation & mounting

GLSV supports several industries in high performance powertrain mounting and isolation system development. GLSV develops custom mounting solutions to perform in a fail-safe manner under severe environmental conditions and challenging space claims. All of our products and solutions are developed for manufacturability, assembly, and considerations for maintainability.

Learn more about powertrain isolation >

Thermal Insulation

Our thermal insulation solutions are complementary to our signature management and powertrain integration capabilities. GLSV uses advanced simulation software tools to accurately predict and optimize the performance of our thermal insulation solutions for exhaust systems and piping, engine compartment, and crew compartment applications. Our engineers design, manufacture, and integrate practical solutions that consider manufacturability, assembly, and maintainability.

Fans

GLSV develops new fan systems to meet our customers’ most challenging air flow needs. Our goal is to provide high performing solutions quickly and affordably. We work through the challenges of air handling by iterating on fan blade design, full system CFD analysis, fan RPM and power consumption to arrive at a fan that fits the space claim and meets the pressure vs flow requirements while operating at acceptable speeds and power levels. GLSV has worked on many vehicle programs where fan noise is a concern for acoustic signature and human factor requirements. Our understanding of airflow noise propagation has helped us work with our customers early in vehicle development to manage these requirements efficiently and effectively by optimizing fans and ducts for quiet operation.

Track

GLSV has a long history with DoD tracked vehicle programs. We can design, develop, and manufacture track, suspension, and running gear components that may be optimized for weight, durability, noise, and vibration. Our analytical and software simulation tools allow us to take a system-level suspension approach to achieve quiet, lightweight, and durable track solutions.