CN105667240A - Giant magnetostictive vehicle suspension shock absorption device - Google Patents
Giant magnetostictive vehicle suspension shock absorption device Download PDFInfo
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- CN105667240A CN105667240A CN201610130111.3A CN201610130111A CN105667240A CN 105667240 A CN105667240 A CN 105667240A CN 201610130111 A CN201610130111 A CN 201610130111A CN 105667240 A CN105667240 A CN 105667240A
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- circuit
- gmm
- vibration
- vehicle suspension
- damping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
Abstract
The invention discloses a giant magnetostictive vehicle suspension shock absorption device. By using advantages of a giant magnetostictive material of high energy density, high conversion efficiency and high response speed, the a giant magnetostictive material is embedded into a vehicle suspension system; a vibration absorption control signal is transmitted through a control circuit; and GMM is driven through magnetostictive effect to offset vibration so as to realize vibration absorption. The giant magnetostictive vehicle suspension shock absorption device disclosed by the invention has the advantages of simple structure, rapid response and good vibration absorption system.
Description
The application is China's November 14 2014 applying date, and application number 201410642922.2, name is called point case application of " multi-mode vehicle suspension vibration-control system ".
Technical field
The present invention relates to a kind of ultra-magnetic telescopic vehicle suspension vibration-control system.
Background technology
Vehicle suspension system can produce vibration owing to elastic element is subject to impact, affects security and the ride comfort of vehicle movement. In order to avoid Suspension System Performance of Vehicle Model to bring disadvantageous impact, it is possible at vehicle suspension mounting dampers to reach the object of vibration damping.
Mostly the vibroshock of vehicle suspension system is fluid power vibroshock, its principle of work is subject to vibration when between vehicle frame (or vehicle body) and vehicle bridge when there is relative movement, piston in vibroshock moves up and down, and the fluid in vibroshock chamber just flows in another chamber from a chamber through different holes repeatedly. Vibration is formed damping force by now friction between hole wall and fluid and the intermolecular internal friction of fluid, makes automobile vibrational energy be converted into fluid heat energy, then absorbs by vibroshock and be dispersed in air.
Rigidity and the vibration performance of above-mentioned traditional spring-mass-damper formula vehicle suspension system vibroshock are superimposed on vehicle suspension system, and the frequency response characteristic of vehicle suspension system is additional on vibroshock, and show anti-resonance feature at the fixing free resonant frequency of vibroshock. The damping of vibroshock can affect attenuation characteristic when vibrational frequency exceedes system anti-resonance response bandwidth, thus changes the vibration performance of system, it is achieved effective vibration damping. But above-mentioned vehicle suspension system vibroshock frequency span is narrower and its ratio of damping is fixed, and the resonant frequency of vibration insulating system can be caused when the environmental factorss such as load change to change, cause vibroshock effectiveness in vibration suppression to be deteriorated.
The through hole that Chinese invention patent 2011101578636 is proposed in a kind of thread fit section being regulated slip thimble by electronic adjustment system is closed or is opened to realize the control of vibroshock damping size. US Patent No. 7112474B2 proposes a kind of magnetic current and becomes adaptive damping device, by regulating magnetic field to change magnetic flow liquid viscosity, it is achieved vibroshock damping size controls. Although said structure achieves the adjustment of vibroshock damping, but damper structure is complicated, assembles and safeguard constant, and there is time lag during said structure damping adjusting, cannot realize active damping.
Summary of the invention
For above-mentioned prior art Problems existing, the present invention provides a kind of ultra-magnetic telescopic vehicle suspension vibration-control system, it is possible to vibrational frequency is carried out autotracking, makes vibration-control system can effectively reduce Suspension System Performance of Vehicle Model in wider range of frequency, and structure is simple, response is rapidly.
In order to realize above-mentioned purpose, the technical solution used in the present invention is: comprise cylinder in urceolus and soft magnetic bodies, described; In soft magnetic bodies, the two ends of cylinder are connected with piston rod with guide piston respectively, and guide piston is fixed on urceolus by spring element, for being provided with a bronze medal wall layer inside urceolus, for magnetic-leakage preventing,
Soft magnetic bodies inner tube installation has GMM, and the two ends up and down of its GMM are connected with upper permanent magnet with lower permanent magnet respectively, and its periphery is wound with coil,
Pilot circuit system comprises vibration analysis pilot circuit and GMM pilot circuit;
Vibration analysis pilot circuit amplifies circuit, mirror frequency circuit and vibration damping pilot circuit by coil, signal conditioning and forms;
Described GMM pilot circuit is by coil, resistanceR, current sourcei、Tunable capacitorC x Form,
The e end of resistance R connects the public end of single pole double throw switch K, and an output terminal of single pole double throw switch K connects a end of current source i, and another output terminal c end of single pole double throw switch K connects, and c end connects tunable capacitor by wireC x ,
The f end of resistance R connects d end by K switch, d end and electric capacityC x G end be connected with LRC circuit, described LRC circuit comprises LC oscillatory circuit, R2, electric capacity C2.
Described spring element is Rectangular Spring.
Described LC oscillatory circuit is inductance L parallel with one another and tunable capacitor Cx2.
Described GMM is Terfeol-D.
The present invention is based on the transduction principle of GMM, and integrated vibration signal frequency discrimination technology, defines the ultra-magnetic telescopic vehicle suspension system vibration damping new technology of a kind of resonant frequency autotracking. The passive GMM shunt damping control of the present invention utilizes tank circuit GMM when tuning-points to have the feature of maximum conversion efficiency, is thermal dissipation by Suspension System Performance of Vehicle Model Conversion of energy. The master of the present invention passive GMM shunt damping control adopts GMM to achieve active damping, makes the main passive GMM effectiveness in vibration suppression that damping controls along separate routes more desirable with passive vibration damping acting in conjunction. Vibrational frequency can be carried out autotracking by above-mentioned vehicle suspension system damping technology, vibration-control system is made can effectively to reduce Suspension System Performance of Vehicle Model in wider range of frequency, and structure is simple, response is rapidly, that compares with conventional truck suspension system oscillation damping method is with the obvious advantage, and the present invention can realize the mutual conversion of three kinds of GMM shunt damping master modes by single pole double throw switch and common switch.
Accompanying drawing explanation
Fig. 1 is the structure block diagram of the present invention.
Fig. 2 is vibration damping controller workflow diagram.
Fig. 3 is the ultra-magnetic telescopic vehicle suspension damping device structure figure of resonant frequency autotracking.
Fig. 4 is the passive GMM of single mode damping control schematic diagram along separate routes.
Fig. 5 is the passive GMM of single mode state impedance frequency characteristics figure along separate routes.
Fig. 6 is main passive hybridization GMM damping control schematic diagram along separate routes.
Fig. 7 is multi-modal passive GMM impedance frequency characteristics figure along separate routes.
Fig. 8 is multi-modal passive GMM damping control schematic diagram along separate routes
In figure: 1, urceolus, 2, spring, 3, guide piston, 4, cylinder in soft magnetic bodies, 5, lower permanent magnet, 6, coil, 7, GMM, 8, upper permanent magnet, 9, piston rod, 10, single pole double throw switch.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Be the structure block diagram of the present invention as shown in Figure 1, comprise vehicle suspension system, circuit is amplified in signal conditioning, mirror frequency circuit, vibration damping controller; By sending, GMM sensing signal transmission amplifies circuit to signal conditioning to described vehicle suspension system, and according to this by mirror frequency circuit, vibration damping controller; Vibration damping controller realizes initiatively GMM damping and passive GMM damping along separate routes along separate routes by active damping signal generator and resonance power consumption circuit.
The vibration of vehicle suspension system can produce changes of magnetic field by counter magnetostriction effect in GMM7, causes producing induction voltage in coil 6. Induced voltage signal is determined the vibrational frequency of vehicle suspension system after amplifying processing of circuit by signal conditioning by mirror frequency circuit. Vibration damping controller regulates active damping signal generator and resonance power consumption circuit according to the vibrational frequency of vehicle suspension system, it is achieved main passive GMM damping control along separate routes.
As shown in Figure 3, it is provided with in soft magnetic bodies in the urceolus 1 of the ultra-magnetic telescopic vehicle suspension system vibration-control system of resonant frequency autotracking cylinder 4, in soft magnetic bodies, the two ends of cylinder 4 are connected with piston rod 9 with guide piston 3 respectively, it is fixed in urceolus 1 by spring 2, for being provided with a bronze medal wall layer inside urceolus 1, for magnetic-leakage preventing, the two ends up and down of the GMM7 in being arranged in soft magnetic bodies cylinder 4 are connected with upper permanent magnet 8 with lower permanent magnet 5 respectively, and its periphery is wound with coil 6.GMM7, in lower permanent magnet 5, soft magnetic bodies, cylinder 4 and upper permanent magnet 8 constitute magnetic loop. The conditioning of coil 6, signal is amplified circuit, mirror frequency circuit and vibration damping pilot circuit and is constituted vibration analysis pilot circuit.
The e end of resistance R connects the public end of single pole double throw switch K, and an output terminal of single pole double throw switch 10 connects a end of current source i, and another output terminal c end of single pole double throw switch 10 connects, and c end connects tunable capacitor by wireC x ,
The f end of resistance R connects d end by K switch, d end and electric capacityC x G end be connected with LRC circuit, described LRC circuit comprises LC oscillatory circuit, R2, electric capacity C2.
Described spring element is Rectangular Spring.
Described LC oscillatory circuit is inductance L parallel with one another and tunable capacitor Cx2
Coil 6, resistanceR, tunable capacitorC x Constitute passive GMM damping pilot circuit along separate routes. Coil 6, resistanceR, current sourcei, tunable capacitorC x Constitute main passive hybridization GMM damping pilot circuit along separate routes.
The working process of the present invention is as follows:
Cut-off switch K, and the output terminal of single pole double throw switch 10 is connected c end, forms the passive GMM of single mode state damping control along separate routes, process as shown in Figure 4, during original state, GMM7 lower permanent magnet 5, on permanent magnet 8 effect under, its magnetic domain deflects vertically. Prefabricating load F is applied on vibroshock by piston rod 9, and is provided support counter-force by spring 2. When vehicle suspension system produces vibration, vibration load superimpose is to, on prefabricating load F, making the magnetic domain of GMM7 inside deflect, changed by the magnetic flux of GMM7, and then produce induction voltage in coil. After induction voltage conditioning being amplified, obtained the vibrational frequency of vehicle suspension system by mirror frequency circuit. When vibrational frequency changes, by regulating the tunable capacitor in RC circuitC x Value, makes RC circuit be in resonant condition all the time, it is ensured that the induced current in coil is converted into heat energy consumption as far as possible.
Close switch K, and the output terminal of single pole double throw switch 10 is connected c end, forming multi-modal passive GMM damping control along separate routes, as shown in Figure 8, its working process and the passive GMM of single mode state are similar along separate routes for process. On RC circuit base, multi-modal passive GMM adopts along separate routes and realizes multi-modal shunt damping vibration control every current circuit principle, it is possible to multiple vibration frequency components of vibration effectively suppressed simultaneously.
As shown in Figure 6, its circuit seals in active current source to main passive hybridization GMM shunt damping control process in RC circuit. Damping control process is similar along separate routes for the Passive Control working process of this circuit and above-mentioned passive GMM, and its ACTIVE CONTROL process is then according to the vibration signal generation vibration reduction control signal sensed, is applied to coil 6 rear drive GMM7 to realize the ACTIVE CONTROL of vibration. The main passive hybridization GMM controlled control that damping controls along separate routes can make structure more stable, and ACTIVE CONTROL can realize better control effects.
The GMM mentioned herein is giant magnetostrictive material; such as Terfeol-D; above-mentioned embodiment is used for explaining explanation the present invention; instead of limit the invention; in the spirit of the present invention and the protection domain of claim; any amendment the present invention made and change, all fall into protection scope of the present invention.
Claims (6)
1. ultra-magnetic telescopic vehicle suspension vibration-control system, it is characterised in that, comprise vehicle suspension system, signal conditioning amplification circuit, mirror frequency circuit, vibration damping controller; By sending, GMM sensing signal transmission amplifies circuit to signal conditioning to described vehicle suspension system, and according to this by mirror frequency circuit, vibration damping controller;Vibration damping controller realizes initiatively GMM damping and passive GMM damping along separate routes along separate routes by active damping signal generator and resonance power consumption circuit.
2. ultra-magnetic telescopic vehicle suspension vibration-control system, it is characterised in that, comprise cylinder in urceolus and soft magnetic bodies, described; In soft magnetic bodies, the two ends of cylinder are connected with piston rod with guide piston respectively, and guide piston is fixed on urceolus by spring element, and for being provided with copper wall layer inside urceolus, soft magnetic bodies inner tube installation has GMM, and GMM is giant magnetostrictive material Terfeol-D.
3. a kind of ultra-magnetic telescopic vehicle suspension vibration-control system according to claim 2; it is characterized in that the two ends up and down of its described GMM are connected with upper permanent magnet with lower permanent magnet respectively; its periphery is wound with coil, and pilot circuit system comprises vibration analysis pilot circuit and GMM pilot circuit; Vibration analysis pilot circuit amplifies circuit, mirror frequency circuit and vibration damping pilot circuit by coil, signal conditioning and forms; Described GMM pilot circuit is made up of coil, resistance R, current source i, tunable capacitor Cx, the e end of resistance R connects the public end of single pole double throw switch K, an output terminal of single pole double throw switch K connects a end of current source i, another output terminal c end of single pole double throw switch K connects, c end connects tunable capacitor Cx by wire, the f end of resistance R connects d end by K switch, the g end of d end and electric capacity Cx is connected with LRC circuit, described LRC circuit comprises LC oscillatory circuit, R2, electric capacity C2, coil, resistanceR, tunable capacitorC x Constitute passive GMM damping pilot circuit along separate routes.
4. coil, resistanceR, current sourcei, tunable capacitorC x Constitute main passive hybridization GMM damping pilot circuit along separate routes.
5. a kind of ultra-magnetic telescopic vehicle suspension vibration-control system according to claim 2, it is characterised in that described LC oscillatory circuit is inductance L parallel with one another and tunable capacitor Cx2.
6. a kind of ultra-magnetic telescopic vehicle suspension vibration-control system according to claim 2, it is characterised in that described spring element is Rectangular Spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610130111.3A CN105667240A (en) | 2014-11-14 | 2014-11-14 | Giant magnetostictive vehicle suspension shock absorption device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610130111.3A CN105667240A (en) | 2014-11-14 | 2014-11-14 | Giant magnetostictive vehicle suspension shock absorption device |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410642922.2A Division CN104494390B (en) | 2014-11-14 | 2014-11-14 | Multi-mode vehicle suspension vibration absorber |
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| CN105667240A true CN105667240A (en) | 2016-06-15 |
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| CN201610130111.3A Pending CN105667240A (en) | 2014-11-14 | 2014-11-14 | Giant magnetostictive vehicle suspension shock absorption device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111114232A (en) * | 2019-12-28 | 2020-05-08 | 西安交通大学 | Control system and control method of composite electromagnetic suspension |
| CN114448161A (en) * | 2022-01-27 | 2022-05-06 | 中国长江三峡集团有限公司 | High-temperature superconducting magnetic suspension flywheel with axial vibration isolation function |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111114232A (en) * | 2019-12-28 | 2020-05-08 | 西安交通大学 | Control system and control method of composite electromagnetic suspension |
| CN111114232B (en) * | 2019-12-28 | 2021-11-19 | 西安交通大学 | Control method of composite electromagnetic suspension |
| CN114448161A (en) * | 2022-01-27 | 2022-05-06 | 中国长江三峡集团有限公司 | High-temperature superconducting magnetic suspension flywheel with axial vibration isolation function |
| CN114448161B (en) * | 2022-01-27 | 2023-10-13 | 中国长江三峡集团有限公司 | High-temperature superconductive magnetic suspension flywheel with axial vibration isolation function |
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