共查询到19条相似文献,搜索用时 78 毫秒
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椭圆环形刚体转动惯量的数值计算 总被引:1,自引:0,他引:1
用Matlab编程对椭圆环形刚体的转动惯量进行了数值计算,并拟合出了椭圆环形刚体转动惯量的多项式表示式,从而可快速计算出椭圆环形刚体的转动惯量. 相似文献
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对于常见刚体,如均匀细棒,圆盘,圆环,圆柱等,其转动惯量的推导和计算结果在各种大学物理教科书中已有陈述,本文将对一些不常见形状刚体的转动惯量,从理论上进行一个详细的研究,计算它们的转动惯量. 相似文献
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刚体转动惯量的质量投影法 总被引:1,自引:1,他引:0
根据转动惯量的定义,提出了计算转动惯量的质量投影法,应用质量投影法讨论了六面体、椭圆盘、圆柱、圆台等几种特殊形状均质刚体对转轴的转动惯量. 相似文献
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扭摆法是测量物体转动惯量的有效方法,其不确定度分析是关键.本文推导了扭摆法测物体转动惯量准确的不确定度传递公式,得到各直接测量量及其不确定度对转动惯量不确定度的影响.并进行了算例分析.结果表明,扭摆法比三线摆测得物体的转动惯量的误差以及不确定度要小很多.这对实验方法的选择和仪器的研制具有重要的实际意义. 相似文献
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运用均质三角形薄板对任一边、对过顶点且与对边平行的轴的转动惯量公式,得到了用薄板的质量、边长及对角线长表示的均质多边形薄板对任一对角线的转动惯量. 相似文献
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In the paper calculation of the moments of inertia for nuclei from the region 87 ≤ Z ≤ 100 and 130 ≤ N ≤ 156 was made in dependence on the angular momentum of their rotational states. The experimental values of the moments of
inertia were calculated for rotational energy of the classic rotor in its quantum form, with the use of a simple formula.
The moment of inertia term appearing in the formula was treated as a variable. The calculations were carried out on the basis
of experimental data for the energies of the rotational levels for 51 bands built on ground states for even-even nuclei and
for nuclei with odd mass number A. In addition, 30 rotational bands built on excited states were also analysed in the investigated region in case of even-even
nuclei. For many bands and nuclei the considered dependence of the moment of inertia on angular momentum has been found in
the analytical form by fitting polynomials to the experimental data. It turned out that obtained results for the moments of
inertia made it possible to describe the energies of rotational levels with a relative deviation not greater or only slightly
greater than 1%. In general, in the case of 12 bands of ground level the maximum relative deviation of obtained level energies
is smaller than 1%.
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通过测量乒乓球转动惯量,介绍了间接测量中的不确定度传递和计算。研究发现乒乓球的质量是影响其转动惯量的主要因素,而内、外直径则是影响较小因素。 相似文献
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《Nuclear Physics A》1998,633(2):223-233
The moment of inertia of hot nuclei is expanded in powers of the rotational frequency ω. The first two expansion coefficients are determined for temperatures above Tc, where the equilibrium shape is spherical at ω = 0. It is shown how the moment of inertia varies with temperature, rotational frequency, proton number, and neutron number. 相似文献
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Matlab软件在三线摆法测定圆环转动惯量中的应用 总被引:1,自引:0,他引:1
使用三线摆可以测量圆环的转动惯量,但测量的物理量较多,人工处理数据比较繁琐,且容易出错。因此,本文使用Matlab软件处理数据。把测量的实验数据输入Excel表格中,引入Matlab软件中运行相关程序后可以直接得到圆环的转动惯量,以及测量的百分差和相对不确定度,处理过程快捷精确。 相似文献