Measuring system and measuring method of mass, center of mass and moment of inertia of rigid body

A moment of inertia and measurement system technology, which is applied in the field of measurement, can solve problems such as cycle lengthening, measurement cycle error, and poor accuracy of moment of inertia, and achieve the effects of easy installation and disassembly, removal of accidental errors, and high action accuracy
CN101793582AInactive Publication Date: 2010-08-04BEIJING INSTITUTE OF TECHNOLOGYGY
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
BEIJING INSTITUTE OF TECHNOLOGYGY
Publication Date
2010-08-04
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a measuring system and a measuring method of mass, center of mass and moment of inertia of a rigid body, and the measuring system comprises a measurement control and analysis unit, a six degree-of-freedom motion platform, a six-component force sensor and a mounting platform, wherein the measurement control and analysis unit is used for controlling the attitude or the motion way of the rigid body by sending a motion signal to the six degree-of-freedom motion platform, and analyzing and calculating the mass, the center of mass and the moment of inertia of the measured rigid body according to the motion signal and force and torque sent by the six-component force sensor; the six degree-of-freedom motion platform is used for carrying out motion in the corresponding attitude or the motion way according to the received motion signal; the six-component force sensor is mounted on the six degree-of-freedom motion platform and used for obtaining the force and the torque received by the measured rigid body by acquiring measurement parameters; the mounting platform is fixed on the six-component force sensor and used for mounting the measured rigid body; and the six degree-of-freedom motion platform drives the measured rigid body to carry out the motion through the six-component force sensor and the mounting platform.The measuring system and the measuring method can realize the measurement of the mass, the center of mass and the moment of inertia, and have the advantages of simple steps and small errors.
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Description

technical field

[0001] The invention relates to the field of measurement technology, in particular to a measurement system and method for the mass, center of mass and moment of inertia of a rigid body. Background technique

[0002] When performing performance calculations and dynamics simulations on vehicles or other mechanical equipment, parameters such as mass, center of mass position, and moment of inertia are often used. These parameters are necessary and critical for vehicle performance calculations and dynamics simulations. In the actual calculation and simulation, the estimation method is mostly used, but the estimated value may be much different from the real value, which directly affects the accuracy and authenticity of the calculation results.

[0003] At present, the main method for measuring the mass and the position of the center of mass is the roll weighing method. This method has certain limitations in the form of measurement, the measurement result is single,...

Claims

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