AI SearchMass changing oscillation system
Call Number: AIT Thesis no. 743 Material type:
TextSeries: Asian Institute of Technology. Thesis ; no. 743Publication details: Bangkok : Asian Institute of Technology, 1974Description: 40 pSubject(s): Online resources: Dissertation note: Thesis (M.Eng.) - Asian Institute of Technology, 1974 Summary: A new type of mass changing oscillation system was investigated, where the mass is a function of space. Namely, if a mass is oscillated in the water in the vicinity of a boundary, the virtual mass must change with respect to the distance between the mass and the boundary. As a system, a sphere with a leaf spring, oscillating in the neighborhood of a wall, was chosen which is considered as simplified ocean structure system. Experimental results showed that the frequency of the oscillation changes with respect to time if there is a wall. The change is predominate as the wall distance becomes smaller. The similar thing happens for the smaller density of the sphere. for a specified wall distance. Solutions obtained from numerical and perturbation methods gave a good agreement with the experimental results except in the initial stage of the oscillation. Phase-plane analysis showed that the solution is stable and periodic.
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Asian Institute of Technology Library Archives | AIT Thesis no. 743 (Browse shelf(Opens below)) | Available | 30050160092929 |
A thesis submitted for the partial fulfillment of the requirements for the degree of Master of Engineering in the Asian Institute of Technology, Bangkok, Thailand.
Thesis (M.Eng.) - Asian Institute of Technology, 1974
A new type of mass changing oscillation system was investigated, where the mass is a function of space. Namely, if a mass is oscillated in the water in the vicinity of a boundary, the virtual mass must change with respect to the distance between the mass and the boundary. As a system, a sphere with a leaf spring, oscillating in the neighborhood of a wall, was chosen which is considered as simplified ocean structure system. Experimental results showed that the frequency of the oscillation changes with respect to time if there is a wall. The change is predominate as the wall distance becomes smaller. The similar thing happens for the smaller density of the sphere. for a specified wall distance. Solutions obtained from numerical and perturbation methods gave a good agreement with the experimental results except in the initial stage of the oscillation. Phase-plane analysis showed that the solution is stable and periodic.
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