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Engineering Mechanics
Experienced in structures, stress, fluid and dynamic analysis, and systems engineering. Interests include cranes, wind loadings, roofing, structural failures, and oil drilling equipment. Member NSPI, ASAE, and ICBO.
Since 1973, I have been in private consulting practice where I spent perhaps 1/5 of my time on new product development, testing, and design for individual clients. The other 4/5 has been spent in accident investigation, principally in Civil Engineering. I have investigated and reported on 14 major structural failures since 1977, including the Hyatt Regency walkway disaster in 1981 and 600 foot long air supported building near Grand Junction in about 1979. (See following list.)
My experience includes masonry and concrete structures. Most notable of these was a complete structural evaluation of the Federal Office Building in Helena, Montana for earthquake resistance.
I have prepared over 20 engineering reports on wooden trusses, bridges, and roof structures, mainly roof trusses. I have also analyzed and reported on a number of roof systems, involving metal roof trusses. Other truss structures I have investigated include crane booms, metrological towers, and oil well derricks.
I have examined and prepared engineering reports on over 50 cranes since 1975, many of these in the past five years. I have developed an in-house computer program for crane tip-overs. I have also done detailed stress analysis of hydraulic booms aimed at reproducing load charts. I have also designed a portable oil well drilling rig.
I have been an adjunct professor of engineering at Denver University and taught at the University of Colorado/Denver (Fall 1991). An active experimenter, I designed and conducted three major experiments in 1986 exceeding $50,000 in total value. I hold three U.S. patents.
A practicing dynamicist since 1951, the writer has taught courses in Mechanical Vibration at DU and Engineering Mechanics to senior students at UCD. Professional experience includes helicopter dynamics, gyroscopics, inertial navigation and flight controls. A recent paper "Three-Dimensional Analysis of a Vehicle in Flight" has been published in the SAE Transactions.
Extensive experience in structural engineering including areas such as cranes, water mains, oil field equipment, and building problems; roofs, roof collapses, wind damage, foundation failures and structural appraisals after fires and explosions. Other areas of interest include, elevators escalators, scaffolds, and helicopters.