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Double-pipeline liquid inertia container with variable inerter coefficient

A technology of inertia coefficient and double pipelines, which is applied in the field of vehicle suspension system, can solve the problems of short service life, low production efficiency and complex structure, etc., and achieve the effects of vibration reduction, stable operation and long service life of the mechanism

Inactive Publication Date: 2016-01-27
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a double-pipeline liquid inerter with a variable inertial coefficient, which can effectively solve the problem of invariable inertial coefficient, complex structure, short mechanism life, and problems in processing and installation of existing inerter equipment. Difficulty, high production cost and low production efficiency

Method used

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  • Double-pipeline liquid inertia container with variable inerter coefficient
  • Double-pipeline liquid inertia container with variable inerter coefficient
  • Double-pipeline liquid inertia container with variable inerter coefficient

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Such as figure 1 As shown, the first metal helical pipeline 4 and the second metal helical pipeline 6 have different radii and the same helical radius, and are arranged on the same cylindrical surface.

[0030] Let: r 1 is the radius of piston 2, r 2 is the inner radius of hydraulic cylinder 1, r 31 is the inner radius of the first metal spiral pipe 4, r 32 is the inner radius of the second metal spiral pipe 6, r 4 is the radius of the helix, h is the pitch of the helix, n is the number of turns of the helix, L is the inner length of the hydraulic cylinder 1, and ρ is the density of the liquid.

[0031] Like springs, dampers, capacitors, resistors, and inductances, inerters are also ideal components. Therefore, when abstracting an actual device into an inerter, some secondary factors must be ignored, such as small sliding friction. Like the ideal hydraulic damper equipment, the quality of the piston 2, the piston rod 3, the hydraulic cylinder 1 and the oil should b...

Embodiment 2

[0067] Such as figure 2 As shown, the first metal helical pipeline 4 and the second metal helical pipeline 6 have the same radius and different helical radii, and are arranged on two concentric cylindrical surfaces.

[0068] Let: r 1 is the radius of piston 2, r 2 is the inner radius of the hydraulic cylinder 1, the radius of the first metal helical pipeline 4 and the second metal helical pipeline 6 is r 3 , r 41 is the spiral radius of the first metal spiral pipeline 4, r 42 is the helical radius of the second metal helical pipeline 6, h is the pitch of the helix, n is the number of turns of the helix, L is the inner length of the hydraulic cylinder 1, and ρ is the density of the liquid.

[0069] Same as in Example 1, some minor factors are ignored and idealized.

[0070] The cross-sectional area of ​​the hydraulic cylinder A 1 = π(r 2 2 -r 1 2 ), the cross-sectional area A of the first metal helical pipeline 4 and the second metal helical pipeline 6 2 '=πr 3 2 ...

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Abstract

The invention provides a double-pipeline liquid inertia container with a variable inerter coefficient. The double-pipeline liquid inertia container with the variable inerter coefficient comprises a hydraulic cylinder barrel, a piston, a piston rod, two metal spiral pipelines, on-off control valves and several other connecting pieces. The piston is placed in the hydraulic cylinder barrel and divides the hydraulic cylinder barrel into two chambers. The piston rod is connected with the piston. The two ends of each metal spiral pipeline are connected with the two chambers of the hydraulic cylinder barrel respectively. The on-off control valves are installed in the positions where the spiral pipelines are connected with the hydraulic cylinder barrel. According to the double-pipeline liquid inertia container with the variable inerter coefficient, the parameter of the inertia container is changed by changing the mass of oil in the liquid inertia container, connection and disconnection of the pipelines can be controlled by controlling the opening and closing of the valves, and the liquid inertia container device with the inerter coefficient capable of being adjusted to be large, medium and small is obtained by adjusting the circulating mode of the oil. Compared with the prior art, the double-pipeline liquid inertia container with the variable inerter coefficient has the advantages that the inerter coefficient can be adjusted, mechanism operation is stable, the structure is simple, the number of components is small, both machining and assembling are easy, the cost is low, the production efficiency is high, and the service life is long.

Description

technical field [0001] The invention belongs to the field of vehicle suspension systems, in particular to a double-pipeline inerter device with variable inertia coefficients for the automobile suspension system using inerters. Background technique [0002] SIMTH, a scholar at the University of Cambridge, proposed the idea of ​​an inerter in 2002, and after designing the rack and pinion inerter and the ball screw inerter, the strict correspondence between the mechanical and electronic networks was realized, and the development of the mechanical network was promoted. . After the strict correspondence between mechanical and electronic networks, a large number of electronic network theories and research methods can be applied to mechanical systems, including automobile suspension systems, vehicle steering systems, train suspension systems, building vibration isolation systems, helicopter vibration isolation systems, and dynamic vibration absorption systems. Devices, etc., and d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/20F16F9/34
CPCF16F7/1034
Inventor 陈龙刘昌宁张孝良沈钰杰杨军黄振兴张华新
Owner JIANGSU UNIV
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