A Rigid Body Rotational Dynamics Experimental Device

An experimental device and dynamics technology, applied in the field of experimental teaching, can solve the problems of less equipment and unfavorable students' interesting exploration and cognition, and achieve the effects of low cost, clear reflection of physical principles and phenomena, and convenient operation
CN111667745BActive Publication Date: 2022-05-17NINGBO UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
NINGBO UNIV
Publication Date
2022-05-17

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Abstract

The invention provides a rigid body rotation dynamics experiment device, which relates to a mechanics experiment device. It solves the problem of lack of simple rigid body rotational dynamics experimental devices in the prior art. This experimental device includes X-axis, Y-axis, and Z-axis which are perpendicular to each other. The rotation position of the X-axis is fixed. The X-axis is connected to the X frame. It is connected with the Y frame through the Y axis rotation. The Y frame rotates in the Z frame. The Y frame is a circular frame. There are two large mass blocks symmetrical about the center on the Y frame. The Y axis connection of the Y frame is symmetrical about the center. The setup has two small masses. The present invention uses a three-degree-of-freedom rotating device to provide a simulation model for the spin dynamics research of a rigid body, so that the phenomenon of the rigid body's spin-stabilized intermediate axis can be clearly observed; by setting the mass block in an adjustable manner, thereby increasing Functionality of the experimental setup.
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Description

technical field

[0001] The invention belongs to the technical field of experiment teaching, and relates to a mechanical experiment device, in particular to a rigid body dynamics experiment device. Background technique

[0002] Rigid body rotational dynamics is a complex and widely used subject. It is difficult to observe intuitively in reality. Theories related to the optional stability of rigid body rotational dynamics, gyroscope mechanics theory, etc. have few related equipment, and most of the existing ones are more sophisticated. Complexity is not conducive to students' interesting exploration and cognition.

[0003] For example, the tennis racket theorem (also known as the intermediate axis theorem) in the rigid body self-selected stability theory is the solution of Euler's equation when describing the motion of a free rigid body in classical mechanics. The rigid body can rotate around three different principal axes, and the three moments of inertia Not equal to each o...

Claims

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