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A nonlinear correction method for an ideal linear coefficient of inertia of a ball screw type inertial container

A ball screw type, non-linear correction technology, applied in the field of vibration reduction of inerters, can solve problems such as complex simulation models, implementation difficulties, and engineering application value limitations, and achieve the effect of accurate inertia coefficient and simple and easy correction method

Active Publication Date: 2017-06-13
JIANGSU UNIV OF SCI & TECH
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Problems solved by technology

However, the invention is difficult to implement in engineering practice, and a complex simulation model needs to be established, and a more realistic inertia coefficient cannot be quickly obtained, so the engineering application value is limited

Method used

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  • A nonlinear correction method for an ideal linear coefficient of inertia of a ball screw type inertial container
  • A nonlinear correction method for an ideal linear coefficient of inertia of a ball screw type inertial container
  • A nonlinear correction method for an ideal linear coefficient of inertia of a ball screw type inertial container

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Embodiment Construction

[0040] In order to make the object, technical solution and advantages of the present invention clearer, and in conjunction with the accompanying drawings and examples of implementation, the present invention will be further described in detail. It should be understood that the specific implementation cases described here are only used to explain the present invention, not to limit the present invention.

[0041] Such as figure 1 As shown, a ball screw type inerter (see Figure 4 ) The nonlinear correction method of the ideal linear inertia coefficient, the specific steps are as follows:

[0042] Step 1: Establish a fixed coordinate system W with the central axis of the screw as the Z axis, and establish a Freiner coordinate system F with the trajectory of the ball movement;

[0043] Step 2-1: Calculate the velocity V at the center of the elliptical contact surface between the ball and the screw on the ball side b,bs and the velocity V on the screw side s,bs ;

[0044] Ste...

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Abstract

The invention discloses a nonlinear correction method for an ideal linear coefficient of inertia of a ball screw type inertial container. First, based on Frenet frame theory and Hertz contact theory, relative sliding velocity and sliding friction moment between a ball of a ball screw pair and a raceway are deducted to obtain friction power of the sliding of the ball, the ratio between the friction power and exciting power is the efficiency of sliding friction of the ball; the efficiency of rolling friction of the ball is introduced, and finally the ideal linear coefficient of inertia of the ball screw type inertial container is corrected as the nonlinear coefficient of inertia. According to the nonlinear correction method, the nonlinear friction between the ball and the raceway in the ball screw type inertial container is considered, which is more in line with the actual situation. Compared with the correction method of the coefficient of inertia obtained by numerical simulation, the correction method is simple and reliable, can provide more accurate coefficient of inertia for the design of the ball screw type inertial container and the application in engineering vibration damping system, promotes and develops the theory and method of the inertial container, and has practical engineering significance.

Description

technical field [0001] The invention relates to a method for correcting the inertial mass coefficient of an inerter, in particular to a non-linear correction method for the ideal linear inertial coefficient of a ball screw type inerter, belonging to the technical field of vibration reduction of the inerter. Background technique [0002] In 2002, based on the theory of electromechanical similarity, Smith, a scholar at Cambridge University, creatively proposed an ideal component that is completely similar to capacitors without grounding constraints—the inerter, and gave its physical realization device, and carried out the application of the inerter to the vehicle suspension. Research on the suspension system, so as to explore a new way to improve the performance of the suspension. [0003] Smith, a scholar at the University of Cambridge, has always hoped to find a mechanical device in the suspension system that has a similar function to the R (resistance)-L (inductance)-C (cap...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/17
Inventor 温华兵李阳刘悦郭俊华
Owner JIANGSU UNIV OF SCI & TECH
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