Device and method for measuring inertial parameters of automobile parts
A technology for inertial parameters and auto parts, which is applied in the field of inertial parameter measurement devices for auto parts, and can solve the problems that the inertial parameter test of no auto parts is better.
Active Publication Date: 2021-09-28
CHINA FIRST AUTOMOBILE
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Problems solved by technology
For a rigid body with simple geometric shape and uniform mass distribution, its moment of inertia relative to a certain rotation axis can be directly calculated by formula; but for an object with complex shape and uneven mass distribution, it can only be accurately measured through experiments. Moment of inertia
[0003] At present, the methods for measuring the moment of inertia of such objects mainly include the compound pendulum method, the three-wire pendulum method, and the torsion pendulum method, etc., and there is no better way to test the inertia parameters of auto parts with a smaller mass (within the mass of 20kg)
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[0053] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.
[0054] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two ...
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The invention belongs to the technical field of auto parts measurement, and discloses a device and method for measuring inertial parameters of auto parts, wherein the device includes a base; a rotating disc, the rotating disc is arranged on the base, and the rotating disc is configured as It can be elastically twisted around its own central axis; a support frame, the support frame is fixedly connected to the rotating disk, and the support frame is configured to drive the workpiece to be tested to turn around the X axis and the Y axis; the tension pressure sensor, the There are four tension and pressure sensors in total, and the four tension and pressure sensors are fixedly connected to the rotating disk and respectively connected to the edge of the support frame along the Z axis. The beneficial effect of the present invention is that the inertial parameters such as mass, center of mass, moment of inertia and product of inertia can be accurately measured for automobile parts with different shapes and small mass.
Description
technical field [0001] The invention relates to the technical field of auto parts measurement, in particular to a device and method for measuring inertial parameters of auto parts. Background technique [0002] The moment of inertia is a fundamental physical quantity in mechanics, and its value depends on the shape of the object, the mass distribution and the position of the chosen axis of rotation. For a rigid body with simple geometric shape and uniform mass distribution, its moment of inertia relative to a certain rotation axis can be directly calculated by formula; but for an object with complex shape and uneven mass distribution, it can only be accurately measured through experiments. Moment of inertia. [0003] At present, the methods for measuring the moment of inertia of such objects mainly include the compound pendulum method, the three-wire pendulum method, and the torsion pendulum method, and there is no better method for testing the inertia parameters of auto pa...
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IPC IPC(8): G01M1/10
CPCG01M1/10
Inventor 张永亮魏可心刘冲
Owner CHINA FIRST AUTOMOBILE