转动惯量(Moment of Inertia)是刚体绕轴转动时惯性(回转物体保持其匀速圆周运动或静止的特性)的量度,用字母I或J表示。在经典力学中,转动惯量(又称质量惯性矩, 简称惯距)通常以I或J表示,SI单位为kg·m²。对于一个质点,I=mr²,其中m是其质量,r是质点和转轴的垂直距离。转动惯量在旋转动力学中的角 色相当...
质点的转动惯量: I=m_{i}R_{i}^{2} (相对转动轴n) 刚体的转动惯量: I = \sum_{i=1}^{n}{m_{i}R_{i}^{2}} (相对转动轴n) 另, R_{i}=\left| r_{i} \right|sin\theta ,故有: I = \sum_{i=1}^{n}{m_{i}(\left| r_{i} \right|sin\theta)^{2}}= \sum_{i=1}^...
Although we commonly refer to the quantityIω2/2as rotational kinetic energy, it is not a new form of energy. It is ordinary kinetic energy because it is derived from a sum over individual kinetic energies of the particles contained in the rigid object. The moment of inertia is a measure ...
《various and precious (moment of inertia)》是Billlie演唱的歌曲，由금토 (153/Joombas)、하람（金夏蓝）、하루나、문수아（文秀雅）、션（金秀妍）、시윤（金始玧）、수현（金秀炫）、츠키（福富月）作词，밍지션 (minGtion)、이아일、JUNNY作曲，发行于2023年3月...
moment of inertia 英 [ˈməʊmənt ɒv ɪˈnɜːʃə] 美 [ˈmoʊmənt əv ɪˈnɜːrʃə]惯性矩；转动惯量 ...
Moment of inertia, abbreviated as I, also called rotational inertia, measures the resists or change an object has to rotational acceleration about an axis. It is analogous to the mass of an object in linear motion and plays a similar role in rotational dynamics. The larger the moment of in...
Moment of inertia,转动惯量
moment of inertia n.pl.moments of inertia A measure of a body's resistance to angular acceleration, equal to: a.The product of the mass of a particle and the square of its distance from an axis of rotation. b.The sum of the products of each mass element of a body multiplied by the...
is sometimes referred to as the second moment of mass and can be calculated using the equation: I = mr² Where: I = Moment of Inertia (kg m²) m = Mass (kg) r = Radius (m) (shortest distance from the axis of rotation to the particle) Higher moments of inertia indicate that ...