“parallel axis theorem”的概念、定义、翻译、参考文献-科学参考

parallel axis theorem

Mathematics

单词	parallel axis theorem
释义	parallel axis theorem Mathematics Let I_G be the moment of inertia of a rigid body about an axis through G, the centre of mass of the rigid body. Then the moment of inertia of the body about some other axis parallel to the first axis equals I_G + md², where m is the mass of the rigid body and d is the distance between the two parallel axes. Rephrasing the theorem in terms of the inertia matrix, for a point P at (column) position vector r from G, then $I_{P} = I_{G} + m ({\| r \|}^{2} I_{3} - r r^{T})$ where I₃ denotes the 3×3 identity matrix.
随便看	log-likelihood log-linear function log-linear model log-normal distribution lognormal distribution Logo logocentrism log-odds log-off logoff logomachy logon log-on transparency logos log out logout log paper log-periodic antenna log phase log-rank test log-rolling logs log-series distribution LOI LOL