Euler's equations of motion

A set of three differential equations expressing relations between the force moments, angular velocities, and angular accelerations of a rotating rigid body. They are equations of motion in the usual dynamical sense, of forms (1)–(3). (1) (2) (3) The formulation employs as coordinate axes the three principal axes of rotational inertia of the body that can rotate about a body-fixed point, which is the center of mass if constraints are absent. These reference axes, which form a righthand set, are indicated by subscripts 1, 2, and 3 in the equations, where I₁, I₂, and I₃ represent the principal moments of inertia; ω₁, ω₂, and ω₃ the angular velocities about the axes; M₁, M₂, and M₃ the corresponding force moments; and t the time. See Rigid-body dynamics

单词	euler's equations of motion
释义	Euler's equations of motion Euler's equations of motion A set of three differential equations expressing relations between the force moments, angular velocities, and angular accelerations of a rotating rigid body. They are equations of motion in the usual dynamical sense, of forms (1)–(3). (1) (2) (3) The formulation employs as coordinate axes the three principal axes of rotational inertia of the body that can rotate about a body-fixed point, which is the center of mass if constraints are absent. These reference axes, which form a righthand set, are indicated by subscripts 1, 2, and 3 in the equations, where I₁, I₂, and I₃ represent the principal moments of inertia; ω₁, ω₂, and ω₃ the angular velocities about the axes; M₁, M₂, and M₃ the corresponding force moments; and t the time. See Rigid-body dynamics
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