Damping Technologies, Inc.

United States

Damping Technologies can design and manufacture conventional constrained layer damping systems for most any application. These may vary from relatively simple and inexpensive designs for the appliance industry to multi-material designs for extended operating temperature range...................to very complex and lightweight designs for the aerospace industry. The constrained layer damping system shown below utilizes a (34 million psi) Young's modulus carbon fiber composite constraining layer and is being applied to a spacecraft component via vacuum bag processing. Damping Technologies can utilize steel, aluminum, titanium, carbon fiber composite, etc. in our constrained layer damping systems. Damping Technologies has internal capability to process carbon fiber composites in flat and non-flat shapes for use with our damping systems. Damping Technologies has an extensive Library of Viscoelastic Materials. Damping Technologies can select appropriate damping materials for a wide range of applications including very cold fuselage skin applications to very hot engine or vehicle braking applications. Damping Technologies has materials, which can meet stringent aircraft, spacecraft, and computer industry outgassing and flammability requirements.

he DTI Damping Strip has been developed by Damping Technologies, Inc. to provide extremely high levels of damping performance for vibration of heavy, stiff structure while being extremely weight efficient. The DTI Damping Strip concept can be configured to suppress noise, vibration, or high cycle fatigue damage due to resonance response. Some candidates applications include: Aircraft Skin (which cannot be covered because of inspection, maintenance, or thermal concerns) Stiff Aircraft Structure (frames, stringers, composite floor panels). Satellite Components Ship Hulls and Bulkheads Heavy Automotive and Truck Structure Large Machinery Off-Road Equipment Conduits, Piping Honeycomb Composite Structure Thick, Stiff Armor Plating The Damping Strip is particularly attractive in applications where full-coverage damping treatments are not an option because of heat transfer, inspection, or maintenance issues.

• Aircraft Fuselage SkinAerospace Structures
• Automotive/Light TruckHeavy Truck

DTI has developed its proprietary Stand-Off Damping Systems to provide extremely high levels of damping performance while being extremely weight-efficient. Stand-Off Damping Systems suppress noise, vibrations, andor high cycle fatigue damage due to resonance response. Candidate application include:

DTI Damping Links are designed in a very application-specific manner based on the operating temperature range of the structure as well as the specific structural dynamics of interest. Often, a finite element model of the structure is utilized in the design in conjunction with the Modal Strain Energy Analysis approach. The DTI Damping Link concept can be extremely effective for attenuation of resonance behavior in cases where a viscoelastic material "link" may be located at an appropriate location on the structure such that relative motion occurs between one attachment point and the other attachment point for modal Damping Link on StringerFrame intersection on aircraft fuselage skin. displacements of interest. The relative motion across the Damping Link results in strain in the viscoelastic material of the Damping Link. The viscoelastic material converts this mechanical strain into heat and dissipates the energy. Vibration attenuation can be very significant in these cases.

• Transmission Fluid ExposureMethyl Ethyl Ketone Exposure
• High Temperature ExposureEngine Oil Exposure

Correctly designing a TVA is only the first step in successful implementation of the design. The TVA must be produced repeatably, with quality control, and it must also survive the environment to which it is exposed. Damping Technologies can specify its TVA designs for applications periodically exposed to very harsh environments such as: