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Search Results: 1 - 4 of 4 matches for " isochronism "
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O isocronismo dos triangulos retangulos
Caparica, álvaro de Almeida;
Revista Brasileira de Ensino de Física , 2007, DOI: 10.1590/S1806-11172007000300011
Abstract: we show that plates having the shape of right triangles with equal hypotenuses which are free to swing about a perpendicular axis passing through the vertex of the right angle exhibit an isochronism similar to that of the simple pendulum, where the period depends on a single geometric parameter, namely the length of the string. in this case the parameter is the half-length of the hypotenuse and we show in addition that the center of oscillation is located exactly at the center of the opposite edge.
Preliminary results of ion trajectory tracking in the acceleration region of the VINCY cyclotron
Ili? An?elija ?.,Risti?-?urovi? Jasna L.,?irkovi? Sa?a T.
Nuclear Technology and Radiation Protection , 2006, DOI: 10.2298/ntrp0601029i
Abstract: In an accelerating region of a cyclotron, an ion makes a large number of turns; thus, its n the Runge-Kutta method of the fourth order with the adaptive time step has been developed. The accuracy requirement is simultaneously set on position and momentum calculation. Magnetic fields used as inputs, have been evaluated in terms of the radial fluctuations of the orbital frequency, i.e. their isochronisms. Ion trajectory tracking has been performed for the following four test beams: H-, H+3, 4He+, He+, and 40Ar6+.
Preliminary results of the ion trajectory tracking in the acceleration region of the VINCY Cyclotron
Ili? An?elija ?.,Risti?-?urovi? Jasna L.,?irkovi? Sa?a T.
Journal of Automatic Control , 2006, DOI: 10.2298/jac0601005i
Abstract: In an accelerating region of a cyclotron an ion makes a large number of turns; thus its tracking requires fast as well as highly accurate computation. Computer code, based on the adaptive time step fourth order Runge Kutta method, has been developed. Accuracy requirement is set simultaneously on the position and momentum calculation. Magnetic fields used as input, have been evaluated in terms of the radial fluctuations of the orbital frequency, i.e. their isochronism. Ion trajectory tracking has been performed for the four test beams: H-, H2 +, 4He+, and 40Ar6+.
Analysis of completely rolling of a circular column in a free circular concave trough
圆柱体在圆弧形凹槽内作纯滚动的运动分析

王树平,李彩娟,崔红娜,吕国,代长明
力学与实践 , 2009,
Abstract: A circular column,s completely rolling in a free circular concave trough on a smooth horizontal plane is investigated.the track equation of the circular column,s mass center and any point on the circular column,s edge in inertial frame of reference is deduced, the strict isochronism vibration condition is given,and the tracks is sketched by a computer; the period of vibration when the circular column is completely rolling is calculated,and the period of vibration when the circular column is completely rolling to when the circular column is completely glide are compared.
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