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論文
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長屋, 幸助 ; 加藤, 宗一
概要:
application/pdf<br />Journal Article<br />This paper is concerned with a method for analyzing the dynamic response of a multispan beam on magnetic supports to an unsteady load decaying exponentially with time. The analysis assumes the
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nonlinear spring system as a group of segments of linear springs, and derives the expression for the nonlinear transient response by use of a method combining the Laplace transformation, Fourier series expansion and residue theorem. Numerical calculations have been carried out for some sample problems, and the effects of nonlinearity due to the magnetic supports have been clarified.
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論文 |
論文
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長屋, 幸助 ; 大月, 和也
概要:
application/pdf<br />Journal Article<br />This paper discusses a nonlinear transient response of a floating body supported by a magnetic force which is generated between two magnets of the same poles. In this system there are two
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kinds of nonlinearity, one of which is due to the restoring force between maguets and the other is due to the load which is a function of the displacement of the body. To treat these nonlinearities the restoring force is assumed to be a partly linear spring and the load is treated by the successive iteration method. This paper also considers the general transient load, and applies a combination method of the Fourier expansion and the Laplace transform method given by Nagaya. Numerical calculations have been carried out for one of the models. To verify the present analysis, experimental tests have also been performed for the same model treated in the numerical calculation.
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