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A Portable, Vibro-Acoustic Based NDI System for Composite Structures

Award Information

Department of Defense
Air Force
Award ID:
Program Year/Program:
2008 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Impact Technologies, LLC
200 Canal View Blvd Rochester, NY -
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2008
Title: A Portable, Vibro-Acoustic Based NDI System for Composite Structures
Agency / Branch: DOD / USAF
Contract: FA8501-08-M-0013
Award Amount: $99,853.00


Impact Technologies, in collaboration with our commercialization partner Boeing, propose to develop a portable, non-destructive inspection (NDI) system that can quickly and accurately determine the damage state of an aircraft composite structure using vibro-acoustic feature analysis. The high-frequency analysis method proposed can be applied in an automated manner using a modal hammer and vibro-acoustic accelerometers capable of assessing the location and severity of various forms of damage, including dis-bonds and delamination. The application of the proposed developments will be focused on the F-15 vertical stabilator region, which our commercialization partner Boeing to assist with design specific knowledge. The core innovations of this project include: 1) Implementation of practical, real-time, non-destructive inspection (NDI) methods (including sensors and signal processing software) that can be applied to critical regions of aircraft structures using piezo-electric response measurements for damage assessments; 2) Development of an integrated frequency, damping and mode shape sensitivity algorithm for damage detection and localization; 3) Development of a stress wave analysis algorithm that incorporates an optimized triangulation procedure for improved damage localization once damage is detected; and 4) Validation of the portable NDI system prototype (including hardware, software and sensors) based on performing a series of well-organized and realistic tests on composite panels with various levels of external and internal damage and baseline testing of the F-15 vertical stabilator region.

Principal Investigator:

Michael J. Roemer
Director of Engineering

Business Contact:

Mark L. Redding
Small Business Information at Submission:

200 Canal View Blvd Rochester, NY 14623

EIN/Tax ID: 161567136
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No