WO2020056730A1 - Système d'isolateur de vibration intégré actif et passif - Google Patents

Système d'isolateur de vibration intégré actif et passif Download PDF

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Publication number
WO2020056730A1
WO2020056730A1 PCT/CN2018/106978 CN2018106978W WO2020056730A1 WO 2020056730 A1 WO2020056730 A1 WO 2020056730A1 CN 2018106978 W CN2018106978 W CN 2018106978W WO 2020056730 A1 WO2020056730 A1 WO 2020056730A1
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WO
WIPO (PCT)
Prior art keywords
vibration isolator
active
vibration
passive
mover
Prior art date
Application number
PCT/CN2018/106978
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English (en)
Chinese (zh)
Inventor
陈凡
李东昱
王国辉
魏巍
Original Assignee
中科振声（苏州）电子科技有限公司
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Publication of WO2020056730A1 publication Critical patent/WO2020056730A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/03—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using magnetic or electromagnetic means

Definitions

  • the invention relates to a vibration isolator system, in particular to an active-passive integrated vibration isolator system.
  • vibration control technology can be divided into vibration damping, vibration isolation, vibration absorption, and vibration damping. And dynamic design. Among these five vibration control technologies, vibration isolation is the most widely used.
  • the Chinese patent active control engine hydraulic suspension with an application number of 201410031596.1 filed on January 23, 2014 proposed that the "main spring, upper liquid chamber, inertial channel and decoupling membrane, lower liquid chamber” of the traditional passive vibration isolator
  • the “lower liquid chamber” in the structure is moved above the main spring, which is upside down from the upper and lower liquid chambers of the traditional passive isolator.
  • the structure has the following problems: 1.
  • the upper liquid chamber is formed by the vulcanization of the top film and the rubber main spring. This setting makes the upper liquid chamber compressed by the main spring when the main spring compresses the lower liquid chamber, and the pressure difference between the upper and lower liquid chambers becomes smaller.
  • the technical solution of the present invention is:
  • An active and passive integrated vibration isolation device includes a signal acquisition device, a control device, and a vibration reduction device.
  • the signal acquisition device collects vibration signals of mechanical equipment and transmits the signals to the control device.
  • the control device controls the signals according to the signals.
  • the vibration reduction device performs vibration reduction.
  • the vibration damping device includes a casing, a mutually connected passive vibration isolator and an active vibration isolator provided in the casing.
  • the passive vibration isolator and the active vibration isolator are connected through a connection mechanism, and the connection mechanism adopts a shaft sleeve, the shaft sleeve is fixed on the active vibration isolator, and the passive vibration isolator is fixed on the shaft sleeve. on.
  • the shaft sleeve is fixed on the active vibration isolator by a fixing bolt, and the passive vibration isolator is fixed on the shaft sleeve by a fixing screw.
  • the passive vibration isolator includes a rubber main spring and an inertia channel mechanism.
  • the inertia channel mechanism includes an upper disk, a lower disk, a decoupling membrane, and a leather bowl.
  • the rubber main spring, the upper disk, the lower disk, and the leather bowl are arranged in this order.
  • the upper plate and the lower plate are arranged to form an inertia channel, and the decoupling film is provided between the upper plate and the lower plate.
  • the fixing screw passes through the decoupling membrane and the leather bowl and is fixed on the shaft sleeve in order.
  • the upper surface of the decoupling membrane, the upper plate and the rubber main spring constitute an upper fluid chamber
  • the lower surface of the decoupling membrane, the lower plate and a leather bowl constitute a lower fluid chamber
  • the inertia channel communicates with the upper fluid chamber And the lower liquid chamber.
  • the active vibration isolator includes a coil wound in an iron core in the axial direction, a mover assembly embedded with a permanent magnet, a stator, and a reed connecting the mover assembly and the stator, and the shaft sleeve is sleeved on The mover assembly is on.
  • the mover assembly includes a mover outer ring, a mover mandrel, and a mover flywheel connecting the two, and the sleeve is sleeved on the mover mandrel.
  • the housing comprises an upper protective cover, a base connecting piece and a lower protective cover in order, and the outer edges of the rubber main spring, the upper plate, the lower plate and the cup are pressed and pressed into a whole by the edges of the base connecting pieces.
  • the stator is pressed on the base connector through a lower protective cover, and the signal acquisition device is disposed on the base connector.
  • a metal skeleton is embedded in the decoupling film to improve the rigidity of the decoupling film and to ensure that the effective area of the decoupling film to the upper and lower liquid chambers does not change greatly within the stroke range.
  • a metal skeleton is embedded in the outer edge of the leather bowl and the edge of the central hole to ensure its tightness.
  • the present invention has the following advantages: after the signal acquisition device collects the vibration signals of the mechanical equipment, the signals are transmitted to the control device, the control device judges the vibration frequency, and when the rubber main spring is excited by the low frequency
  • the active and passive integrated vibration isolation device works in passive mode
  • the passive vibration isolator works, the active vibration isolator does not work
  • the pressure and volume of the upper and lower liquid chambers of the passive vibration isolator cause the liquid to be in the inertia channel. Flow, the inertial channel with a specific liquid volume and liquid resistance will consume part of the vibration energy, thereby inhibiting the transmission of vibration to the base.
  • the active and passive integrated vibration isolation device works in active mode, and the active vibration isolator is controlled by the control system to generate upward main power transmission to the decoupling membrane, which is amplified and transmitted to the upper fluid chamber Rubber main spring.
  • the rubber main spring gives a downward reaction force to the base to cancel it out, thereby suppressing the transmission of vibration to the base.
  • the effective area of the decoupling film of the integrated vibration isolator acting on the upper and lower liquid chambers is smaller than the effective area of the main spring acting on the upper liquid chamber.
  • the main power generated by the active isolator is transmitted to the rubber main body through the upper liquid chamber.
  • the spring force is amplified, and its reaction force is the main force applied to the base, and this force is also amplified.
  • the main power applied to the base by the active vibration isolator is amplified in the working frequency band by the passive vibration isolator, and is offset by the force transmitted from the vibration source to the base, thereby improving the vibration isolation efficiency.
  • FIG. 1 is a schematic structural diagram of an active-passive integrated vibration isolation device according to a specific embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of an active vibration isolator according to a specific embodiment of the present invention.
  • an active-passive integrated vibration isolation device includes a signal acquisition device 18, a control device, and a vibration reduction device.
  • the signal acquisition device 18 collects vibration signals of a mechanical device and transmits the signals to the device.
  • a control device that controls the vibration reduction device to perform vibration reduction according to a signal.
  • the signal acquisition device 18 uses an acceleration sensor, and the acceleration sensor measures the vibration signal transmitted to the base as a control error signal.
  • the control device uses an industrial computer, an on-board computer, a microcomputer, and an embedded computer. Digital signal processor (DSP) or editable logic device (FPGA), etc.
  • DSP Digital signal processor
  • FPGA editable logic device
  • the vibration damping device includes a housing, a passive vibration isolator and an active vibration isolator 1 disposed in the housing and fixedly disposed relative to the housing.
  • the passive vibration isolator and the active vibration isolator 1 are connected in series.
  • the passive vibration isolator and the active vibration isolator 1 are connected by a connecting member assembly 7, and the connecting member assembly 7 includes a shaft sleeve 23 which is fixed on the active vibration isolator 1.
  • the passive vibration isolator is fixed on the shaft sleeve 23.
  • the housing includes an upper protective cover 8, a base connector 10, and a lower protective cover 9 connected in order.
  • the base connector 10 includes a connection portion and a flange portion connected in sequence.
  • the upper protective cover 8 is connected to a housing.
  • the flange portion is fixed with screws, and the signal acquisition device 18 is disposed on the flange portion.
  • the active vibration isolator 1 includes a coil wound in an iron core 11 in the axial direction, a mover assembly 14 in which a permanent magnet 13 is embedded, a stator, and a reed 15 connecting the mover assembly 14 and the stator.
  • the mover assembly 14 includes a mover outer ring 20, a mover mandrel 21, and a mover flywheel 22 connecting the two.
  • the active vibration isolator 1 uses an electromagnetic actuator.
  • the sleeve 23 is sleeved on the mover mandrel 21, and the sleeve 23 and the mover mandrel 21 are fixed by fixing bolts.
  • the connector assembly 7 further includes screws 24, and the passive The vibration isolator passes the central hole of the decoupling membrane 5 and the central hole of the leather bowl 6 in order by using screws 24 and is fixed on the shaft sleeve 23, so that the passive vibration isolator and the active vibration isolator 1 connected in series.
  • the effective area of the decoupling membrane 5 of the integrated vibration isolator acting on the upper and lower liquid chambers is smaller than the effective area of the rubber main spring 2 acting on the upper liquid chamber.
  • the effective area of the rubber main spring 2 acting on the upper liquid chamber is at least decoupled.
  • the connection of the leather bowl 6 moves up and down with the mover assembly 14 and the electromagnetic actuator mover assembly 14 There is no mutual movement with the leather bowl 6 and the decoupling membrane 5. Ensures that the lower liquid chamber is well sealed.
  • the adopted electromagnetic actuator is composed of a coil wound in the iron core 11 in the axial direction, an assembly 14 in which a permanent magnet 13 is embedded, and a reed 15 connecting the assembly 14 and a stator, and has a simple structure and low cost. Reduce power consumption and volume of integrated vibration isolator.
  • the rubber main spring 2 is connected to the base.
  • the signal acquisition device 18 collects the vibration signals of the mechanical equipment, it transmits the signals to the control device.
  • the control device determines the vibration frequency.
  • the active-passive integrated vibration isolation device works in a passive mode, the passive vibration isolator works, and the active vibration isolator 1 does not work.
  • the pressure and volume of the upper and lower liquid chambers cause the liquid to inertia.
  • the flow in the channel, the inertial channel with a specific liquid volume and liquid resistance will consume part of the vibration energy, thereby inhibiting the transmission of vibration to the base, and generating a vibration isolation effect.
  • the active-passive integrated vibration isolation device works in an active mode, and both the passive vibration isolator and the active vibration isolator 1 work.
  • the main force acts on the decoupling membrane 5, because the area of the upper fluid chamber acting on the decoupling membrane 5 is smaller than the area of the rubber main spring 2 acting on the upper fluid chamber, the force of the rubber main spring 2 to the base is amplified , Which cancels out the transmitted vibration force, thereby suppressing the transmission of vibration to the base and generating a vibration isolation effect, that is, the force transmitted by the active isolator 1 is amplified by the liquid chamber and finally transmitted to the base, and is transmitted to the base.
  • the vibration forces on the counterbalance For example, an upward exciting force acting on the rubber main spring 2 is also an upward vibration force transmitted to the base through the rubber main spring 2.
  • the acceleration sensor at the base detects the vibration, and the active vibration isolator 1 controlled by the control device also generates upward main power to be transmitted to the decoupling membrane 5 and amplified and transmitted to the rubber main spring 2 through the upper liquid chamber.
  • the rubber main The spring 2 counteracts a downward reaction force on the base, thereby suppressing transmission of vibration to the base.
  • the control method adopted by the control device is an FxLMS algorithm.
  • the vibration acceleration signal collected by the acceleration sensor is the error signal e (k).
  • the vibration acceleration signal obtained at the vibration source is the reference signal x (k).
  • the reference signal x (k) is extracted and sampled and input to a horizontal direction in the control device.
  • Filter w (n) to obtain the filtered signal u (k) x (k) ⁇ w (k) ⁇ T;
  • u (k) is output from the controller and passes through the secondary channel S (z) (the secondary channel includes Power amplifier, electromagnetic actuator, the transfer function of the electromagnetic actuator output force to the vibration force at the base, the transfer function of the vibration force at the base to the acceleration at the base, etc.
  • y (k) u (k) ⁇ S (z).
  • This main dynamic acceleration signal is superimposed on the vibration acceleration d (k) excited at the base by the exciting force to obtain a true vibration acceleration signal e (k) at the base.
  • the control purpose is to make the error signal e (k) 0 by updating the weight of the transverse filter w (n).
  • the implementation method is to pass the reference signal x (k) into the secondary channel S (z) to obtain a filtered reference signal.
  • Reuse signal And error signal e (k) update formula by weight Update the weights, where ⁇ is the convergence factor, and control the convergence speed of the transverse filter weights.
  • the active-passive integrated vibration isolation device and the FxLMS algorithm together form an integrated vibration isolator system to achieve active control of vibration.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

L'invention porte sur un système d'isolateur de vibration intégré actif et passif, comprenant un appareil de collecte de signaux (18), un appareil de commande, et un appareil d'amortissement, l'appareil de collecte de signaux (18) collectant des signaux de vibration d'un dispositif mécanique et transportant les signaux vers l'appareil de commande, et l'appareil de commande commandant l'appareil d'amortissement pour mettre en œuvre un amortissement sur la base des signaux ; l'appareil d'amortissement comprend un boîtier, et un isolateur de vibration passif et un isolateur de vibration actif (1) agencés dans le boîtier et sécurisés par rapport au boîtier ; et l'isolateur de vibration passif et l'isolateur de vibration actif (1) sont connectés en série.
PCT/CN2018/106978 2018-09-17 2018-09-21 Système d'isolateur de vibration intégré actif et passif WO2020056730A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811080504.3A CN108999925B (zh) 2018-09-17 2018-09-17 主被动一体化隔振器系统
CN201811080504.3 2018-09-17

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WO2020056730A1 true WO2020056730A1 (fr) 2020-03-26

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CN110439961B (zh) * 2019-07-19 2024-06-21 中国船舶重工集团公司第七一九研究所 一种磁阻式电磁主被动一体化复合隔振器
CN110645309B (zh) * 2019-09-23 2021-06-18 安徽誉林汽车部件有限公司 一种液压悬置用解耦膜片结构

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CN2204354Y (zh) * 1994-11-30 1995-08-02 哈尔滨工程大学 带有主动控制吸振器的组合式减振装置
JP2000283214A (ja) * 1999-03-30 2000-10-13 Tokai Rubber Ind Ltd 防振装置用加振器およびそれを用いた能動型防振装置
JP2000337427A (ja) * 1999-05-27 2000-12-05 Tokai Rubber Ind Ltd 能動型防振装置
CN106438830A (zh) * 2016-09-07 2017-02-22 武汉源海博创科技有限公司 电磁式主被动一体化隔振器
CN206111934U (zh) * 2016-09-07 2017-04-19 武汉源海博创科技有限公司 电磁式主被动一体化隔振器

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DE102009059234B4 (de) * 2009-12-21 2020-08-06 Contitech Vibration Control Gmbh Adaptives Motorlager
CN202001552U (zh) * 2011-03-14 2011-10-05 上海通用汽车有限公司 动力总成悬置装置
CN203832224U (zh) * 2013-11-22 2014-09-17 宁波拓普集团股份有限公司 一种刚度与阻尼可调式发动机悬置装置
CN103758919A (zh) * 2013-12-25 2014-04-30 安徽微威胶件集团有限公司 一种动力总成主动隔振元件
JP6688681B2 (ja) * 2016-05-27 2020-04-28 住友理工株式会社 電磁式アクチュエータとそれを用いた能動型制振器、電磁式アクチュエータの製造方法
CN107399228B (zh) * 2017-07-10 2023-04-28 同济大学 一种动力总成主动悬置
CN107514441A (zh) * 2017-09-21 2017-12-26 安徽中鼎减震橡胶技术有限公司 负压液压悬置
CN107939899B (zh) * 2017-11-23 2019-08-02 保定威奕汽车有限公司 液压悬置
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Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2204354Y (zh) * 1994-11-30 1995-08-02 哈尔滨工程大学 带有主动控制吸振器的组合式减振装置
JP2000283214A (ja) * 1999-03-30 2000-10-13 Tokai Rubber Ind Ltd 防振装置用加振器およびそれを用いた能動型防振装置
JP2000337427A (ja) * 1999-05-27 2000-12-05 Tokai Rubber Ind Ltd 能動型防振装置
CN106438830A (zh) * 2016-09-07 2017-02-22 武汉源海博创科技有限公司 电磁式主被动一体化隔振器
CN206111934U (zh) * 2016-09-07 2017-04-19 武汉源海博创科技有限公司 电磁式主被动一体化隔振器

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