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Memorial Tributes Volume 5 (1992) / Chapter Skim
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Jacob Pieter Den Hartog
Pages 80-85

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From page 81...
... It's called dynamics; and he taught each of its secretswith words that always created a vivid image of yet another particular mechanism whose intriguing behavior dramatized a generic concept. And you never forgot that image; and that's why that concept was now yours in whatever new guise you encountered it.
From page 82...
... At that instant ~ became an electrical engineer; and it took Stephen Timoshenko three years in Pittsburgh to convert me back to mechanical." Later a son was named Stephen Den Hartog. While at Westinghouse, Jacob Pieter studied mathematics at the University of Pittsburgh in the evenings, completing his Ph.D.
From page 83...
... And finally, of course, they took their place in the body of his written contributions. There came a series of landmark papers in nonlinear vibrations of electrical machinery, of turbine blades, of tall stacks with von Karman vortices, of piping systems, of the foundations for elevated structures, of great furnace walls and tubes, and on torsional vibration ciampers and dynamic vibration absorbers.
From page 84...
... From the American Society of Mechanical Engineers (ASME) , in addition to the Timoshenko Medal in 1972, he received the Charles Russ Richards Memorial Award, the Worcester Reed Warner Medal, and the American Society of Mechanical Engineers Medal.
From page 85...
... Den Hartog Award for "sustained meritorious contributions to vibration engineering," of which he was first recipient. Some of us remember best that he told us, "Spend your life teaching, and you'll have a lot of fun." For we dicI.


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