Education: University of Maryland, B.S., Mechanical Engineering, 1976
Summary: Career contract/consultant engineer – more than 30 years of structural analysis experience.
Spectrum39 is my company used for subcontracting to job shops, industry and government.
Finite element and classical structural analysis of aircraft components, space flight hardware, & military equipment (www.si39.com).
Extensive experience with Graphite/Epoxy and KEVLAR composite structures.
Structural analysis types: Static, Material and Geometric Nonlinear, Shock, Random Vibration, Dynamic Time-History
Recent software experience: MSC/NASTRAN, PATRAN, FEMAP, CATIA V
Spectrum39 owns a FEMAP/NASTRAN license.
Recent Accomplishments:
Material Review Board (MRB) stress analysis for all Thrust Reverser and Nacelle programs at MRAS
Loads and stress analysis of the ARJ21 Thrust Reverser design updates
Loads and stress analysis of the GP7000/8000 Inlet, prepare FAA Certification Reports
Loads and stress analysis of the B747-8 Thrust Reverser, prepare FAA Certification Reports
Loads and Stress analysis of the Service Module Structure on the ORION Program
Stress analysis of Mechanisms for the ORION Program
Long Term Contract Assignments:
Middle River Aircraft Systems (MRAS) of General Electric, Baltimore, MD
March 2010 to September 2014; January 2007 to April 2007; January 2004 to July 2005;
October 2001 to January 2002; May 1997 to August 2000; March 1994 to August 1995
Stress, Fatigue, and Damage Tolerance Analysis of Thrust Reverser composite structures and metallic components
Nacelle and Thrust Reverser Programs:
GEnx for 747-8
GE CF6-80C for B747, B767, C5, A300, MD11
GE CF6-80E for A330
Pratt & Whitney 4168 for A330
CF34-10 Thrust Reverser for Embraer 190 and ARJ21
CF34-10 Inlet Anti-Ice System
Bombardier GP7000/8000 Inlet
Lockheed Martin Space Systems Company, Denver, CO
May 2007 to February 2010
Loads, Stress, and Fatigue analysis of Crew Module and Service Module Structure on the ORION Program. Performed detail stress analysis of Retention & Release Mechanisms.
Northrop-Grumman, Baltimore, MD
August 2005 to December 2006; February 2002 to December 2004; September 2000 to September 2001
Loads, Stress, Fatigue and Damage Tolerance Analysis for the Wedgetail Antennae.
Followed the program from initial design, thru static/fatigue testing, into production.
Lockheed Martin Astronautics, Denver, CO
June 1996 to April 1997
Loads, Stress, and Fatigue analysis supporting the design and static test of a small composite spacecraft.
Teledyne Brown Engineering
August 1995 to June 1996
Loads, Stress, and Fatigue analysis of Radioisotope Thermal Generators (RTG) - small pressure vessels containing nuclear fuel. RTG’s are used as a long term energy source having space and terrestrial applications.
Gichner Shelter Systems
July 1993 to February 1994
Concept design, dynamic structural analysis, detail stress analysis of Hardened SICPS shelter design, a small composite HMMWV enclosure to provide C3I equipment protection from conventional and nuclear weapons.
Swales & Associates (ATK)
January 1993 to June 1993
Performed Fail Safe and Safe Life stress analysis of a bridge structure that holds experiments in the Space Shuttle.
Spectrum 39 - Armor Programs
January 1987 to December 1992
Consultant design and structural engineer for a variety of programs:
TSV, Transportable Storage Container - analysis, design, fabrication of a prototype composite armored container for high value munitions
Development of struct...
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