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Power calculation method of ball screw type energy feedback shock absorber

A ball screw type, power calculation technology, applied in the direction of calculation, computer-aided design, instrument, etc., can solve the problems of complex system structure, high processing order, slow simulation analysis speed, etc., to improve modeling efficiency and convenience. Ride controls, easily adjustable effects

Active Publication Date: 2021-10-01
YANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most of the research on the ball screw type energy-feeding shock absorber adopts multi-rigid body modeling and simulation represented by Adams. Multi-rigid body modeling and simulation is a mechanical modeling method. With the help of three-dimensional modeling software, entities with complex shapes are established. The model parameters can be automatically obtained by defining the material properties after importing. The multi-rigid body modeling and simulation make the system structure too complicated, the order of the simulation process is too high, the simulation analysis speed is too slow, and the mathematical model of the system cannot be obtained. The correctness of the modeling no way to verify

Method used

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  • Power calculation method of ball screw type energy feedback shock absorber
  • Power calculation method of ball screw type energy feedback shock absorber
  • Power calculation method of ball screw type energy feedback shock absorber

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Experimental program
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Effect test

Embodiment 1

[0054] refer to figure 1, is the first embodiment of the present invention, this embodiment provides a kind of ball screw type energy-feeding shock absorber, and it comprises fixed plate 12, is connected with drive shaft 9 rotatably on the fixed plate 12, and fixed plate 12 The upper part is fixedly connected with the first supporting seat 15 and the second supporting seat 14 arranged at intervals in the height direction. The second bearing 17 is rotatably connected to the second support base 14, the transmission shaft 9 is threaded with a moving nut 10 that can slide up and down along the fixed plate 12, and the fixed plate 12 is fixed with a sliding guide rail 13. A lifting plate 11 is fixedly connected to the nut 10, and the lifting plate 11 is slidably connected to the sliding guide rail 13. The fixed plate 12 below the transmission shaft 9 is fixedly connected to the gear box 2, and the outer end of the gear box 2 is fixedly connected to There is an energy-feeding motor ...

Embodiment 2

[0057] As the second embodiment of the present invention, this embodiment provides a power calculation method of a ball screw type energy-feed shock absorber, using this invention to verify that the shock absorber has vibration damping performance, which can be achieved by loading different drives The force simulates the output power of the feeder motor 1 under different working conditions.

[0058] (S1) Convert the 3D model into Adams for multi-rigid body modeling of the virtual prototype, define material properties, add constraints, load the drive according to the derived driving force formula, obtain the system model, and obtain model parameters;

[0059] (S2) extracting key components in the three-dimensional model, establishing a physical model of the shock absorber, and establishing a power bond diagram model according to the physical model of the shock absorber;

[0060] (S3) deduce the state equation of the power bond graph model according to the power bond graph model...

Embodiment 3

[0088] It is the third embodiment of the present invention. The difference between this embodiment and Embodiment 1 and Embodiment 2 is that the simulation is performed for a specific virtual prototype, and the simulation parameters of the virtual prototype are shown in Table 1.

[0089] Table 1 Simulation parameters of virtual prototype

[0090]

[0091] When performing virtual prototype multi-rigid body modeling, the settings are as follows:

[0092] Fixed displacement amplitude is 50mm

[0093] MOTION=step(time,0,0,0.5,50)+step(time,0.5,0,1,-50)

[0094] Driving force acting on the nut:

[0095] SFORCE1=0.075*0.046*WM(.shockabsorber.rotor.cm) / 10.5*44*2*pi / 5*sin(2*pi*1*time)

[0096] Since the electromagnetic torque acts as a resistance torque and is opposite to the direction of the driving force, the driving force makes the nut move up and down, so the direction of the electromagnetic torque changes accordingly:

[0097] Electromagnetic torque direction 1:

[0098] ...

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Abstract

The invention discloses a power calculation method of a ball screw type energy feedback shock absorber, which comprises the following steps of after converting the format of a three-dimensional model, importing the three-dimensional model into Adams to carry out virtual prototype multi-rigid-body modeling to obtain model parameters, establishing a power bonding graph model, deducing a state equation of the power bonding graph model according to the power bonding graph model, establishing a mathematical model of the shock absorber according to the state equation, converting the bonding graph model into a block graph according to the corresponding relation between the bonding graph elements and the block graph units, according to the block graph, establishing a dynamic simulation model in the Matlab-Simulink, and inputting the model parameters obtained in the above steps, conducting simulation analysis on the dynamic simulation model, and acquiring an output power curve. Analogue simulation under various working conditions is realized, and the simulation speed is high.

Description

technical field [0001] The invention relates to the technical field of shock absorbers, in particular to a power calculation method of a ball screw type energy-feed shock absorber. Background technique [0002] Traditional automobile shock absorbers consume the driving energy of the car through ground excitation, turning roll and other working conditions, and dissipate the above energy into the air in the form of friction or heat energy. Studies have shown that the energy dissipated by the vibration of the automobile suspension system It accounts for about 20% of energy consumption, exacerbating the energy crisis. The ball screw type energy-feeding shock absorber can provide large damping force and output high regenerative power at the same time, so it is suitable for special vehicles such as heavy trucks or construction machinery. [0003] At present, most of the research on the ball screw type energy-feeding shock absorber adopts multi-rigid body modeling and simulation r...

Claims

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Application Information

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IPC IPC(8): G06F30/15G06F30/17G06F30/20G06F111/04G06F111/10G06F119/06G06F119/14
CPCG06F30/15G06F30/17G06F30/20G06F2111/04G06F2111/10G06F2119/06G06F2119/14
Inventor 沈辉周竹馨关栋李竞丛枭杰王佩犇吴倩雯龚俊杰
Owner YANGZHOU UNIV
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