Print Email Facebook Twitter Flow-induced gate vibrations: Prevention of sef-excitation computation of dynamic gate behaviour and the use of models Title Flow-induced gate vibrations: Prevention of sef-excitation computation of dynamic gate behaviour and the use of models Author Kolkman, P.A. Contributor Schoemaker, H.J. (promotor) Van Douwen, A.A. (promotor) Faculty Civil Engineering and Geosciences Department Hydraulic Engineering Date 1976-06-17 Abstract The objective of this study is to develop design criteria for the dynamic behaviour of gates and valves. To this end, a resume of existing theories is given as well as an extended analysis of the added water mass, hydrodynamic rigidity and damping (also negative damping or self-excitation) and excitation by turbulent flow. New computation methods are presented for self-exciting vibrations: The ensuing introduction of an instability indicator permits the prediction of such vibrations in the design phase. Methods are described to calculate the added water mass and water damping in flowing water. Also treated are the instability of overflowing and falling water nappes, the response of a mass-spring system to noise excitation by turbulence, and the technique of hydroelastic models. Prior publications by the author on these subjects are to be found in the Appendices. Subject vibrationsweirsgatesturbulence To reference this document use: http://resolver.tudelft.nl/uuid:f13a8efe-f8ec-4708-87d6-7a94622c36c3 Part of collection Institutional Repository Document type doctoral thesis Rights (c) 1976 Kolkman, P.A. Files PDF Kolkman1976.pdf 9.71 MB Close viewer /islandora/object/uuid:f13a8efe-f8ec-4708-87d6-7a94622c36c3/datastream/OBJ/view