A new method is described for the numerical solution of the Timoshenko integral equation for the impulsive constant force between two elastic impacting bodies. The method is computationally fast and gives very accurate results. Its use is illustrated by treating the case of central impact of a steel sphere onto a simply supported circular plate.
Hydroelastlcity per se is a relatively new science; however, many of its theories are a continuation and ramification of the older science of aeroelasticity. :
This article describes the design and construction of an analogue computer which will solve the simultaneous differential equations governing the growth and decay of the nuclides in a simple, three member, radioactive decay chain. The instrument, which was shown at the 1973 Physics Exhibition, was constructed to provide a useful demonstration for teaching. It also provides a simple example of an analogue computer capable of solving problems of practical interest, and thus gives a useful introduction to analogue computer techniques.
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