WO2000012646A1 - Composition de liquide d'amortissement - Google Patents

Composition de liquide d'amortissement Download PDF

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Publication number
WO2000012646A1
WO2000012646A1 PCT/JP1998/003910 JP9803910W WO0012646A1 WO 2000012646 A1 WO2000012646 A1 WO 2000012646A1 JP 9803910 W JP9803910 W JP 9803910W WO 0012646 A1 WO0012646 A1 WO 0012646A1
Authority
WO
WIPO (PCT)
Prior art keywords
vibration damping
damping liquid
vibration
active ingredient
liquid composition
Prior art date
Application number
PCT/JP1998/003910
Other languages
English (en)
Japanese (ja)
Inventor
Yasuyuki Ohira
Mitsuo Hori
Original Assignee
Shishiai-Kabushikigaisha
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shishiai-Kabushikigaisha filed Critical Shishiai-Kabushikigaisha
Priority to PCT/JP1998/003910 priority Critical patent/WO2000012646A1/fr
Publication of WO2000012646A1 publication Critical patent/WO2000012646A1/fr

Links

Classifications

    • 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
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
    • 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
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/006—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium characterised by the nature of the damping medium, e.g. biodegradable
    • 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
    • F16F2224/00—Materials; Material properties
    • 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
    • F16F2224/00—Materials; Material properties
    • F16F2224/04—Fluids
    • F16F2224/048—High viscosity, semi-solid pastiness
    • 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
    • F16F2228/00—Functional characteristics, e.g. variability, frequency-dependence
    • F16F2228/04—Frequency effects

Definitions

  • the present invention is applied to seismic isolation liquids in seismic isolation devices installed in high-rise buildings and the like, and is applied to the automobile engines and building structures.
  • the present invention relates to a vibration damping liquid composition capable of absorbing and attenuating vibration generated from an automobile engine or a building structure.
  • vibration generated by automobiles which are indispensable for social life, and the noise caused by the vibration have come to the fore as social problems, and in the process of stricter legal regulations, measures to prevent the occurrence are strongly required. I was able to.
  • many drivers and passengers demand quietness and comfort in cars by preventing the generation of vibrations and noise caused by the vibrations.
  • vibration damping liquid ethylene daryl
  • the present inventors focused on a vibration damping liquid used in combination with a material having viscoelastic properties, and aimed at improving the vibration damping performance of the vibration damping liquid itself.
  • the present invention relates to a vibration damping liquid composition which can be used in combination with a material having viscoelastic properties, and by dramatically improving the vibration damping performance of the vibration damping liquid, for example, an engine mount for a vehicle ⁇ a building structure
  • the vibration damping liquid composition of the present invention (hereinafter, simply referred to as a composition) is characterized in that the vibration damping liquid contains an active component that increases the amount of dipole moment in the vibration damping liquid.
  • the vibration damping solution in the composition of the present invention uses water, alcohols, or one selected from daricols or a mixture thereof. Can be. It should be noted that which of the above-mentioned vibration damping liquids is used may be appropriately determined according to the field of application, the application state, and the like. Next, the relationship between the dipole moment amount and the vibration damping performance will be described.
  • FIG. 1 shows the arrangement of the dipoles 12 inside the vibration damping liquid 11 before the vibration energy is transmitted.
  • the arrangement state of the dipoles 12 is in a stable state.
  • the transmission of the vibration energy causes displacement of the dipoles 12 existing inside the vibration damping liquid 11, and as shown in FIG. 2, each dipole 1 2 inside the vibration damping liquid 11 1 It will be placed in an unstable state, and each dipole 1 2 will try to return to a stable state as shown in Figure 1.
  • energy is consumed. It is considered that the vibration energy is absorbed through the displacement of the dipole inside the vibration damping liquid 11 and the energy consumption by the restoring action of the dipole.
  • the displacement of the dipoles 12 means that the dipoles 12 in the vibration damping liquid 11 rotate or shift in phase.
  • the vibration damping property of the vibration damping liquid 11 increases. It is considered to be. From this, it is very useful to use a vibration damping liquid with a large amount of dipole moment in the vibration damping liquid to obtain higher vibration damping performance.
  • the vibration damping performance (vibration) at the temperature at which the machine or equipment to which the composition is applied is used (hereinafter referred to as the operating temperature range; specifically, 20 to 40 ° C.) Ensuring the maximum performance of energy absorption is one of the important factors.
  • the vibration damping liquid the application field, application state, In addition to the amount of dipole moment in the composition and the operating temperature range of the composition, it is desirable to consider handling, availability, temperature performance (heat resistance and cold resistance), weather resistance, price, etc.
  • the active component is a component that dramatically increases the amount of the dipole moment in the vibration damping liquid.
  • the active component itself has a large dipole moment, or the active component itself has a small dipole moment. However, it refers to a component capable of dramatically increasing the amount of dipole moment in the vibration damping liquid by blending the active component.
  • the amount of the dipole moment generated in the vibration damping liquid 11 under the predetermined temperature condition and the magnitude of the vibration energy can be reduced by mixing the active ingredient with the vibration damping liquid 11, as shown in Fig. 3.
  • the power is increased by a factor of three, and by a factor of ten.
  • the energy consumption due to the dipole restoration operation when the vibration energy is transmitted will increase dramatically, and it is thought that the vibration damping performance far exceeds the predicted.
  • active ingredients that induce such effects include N, N-dicyclohexylbenzothiazyl-2-sulfenamide (DCHBSA), 2-mercaptobenzothiazole (MBT), and dibenzothiazyl sulfide (MBT).
  • DCHBSA N-dicyclohexylbenzothiazyl-2-sulfenamide
  • MTT 2-mercaptobenzothiazole
  • MTT dibenzothiazyl sulfide
  • MB TS N-cyclohexenylbenzobenzothiazyl-1-sulfenamide (CBS), N-tert-butyl benzothiazilyl 2-sulfenamide (BBS), N-oxyzetene lenvenothiazilyl 2-sulfenamide (OB S), N, N-diisopropyl / lebenzothiazide / le2-sulfenamide (DPBS) and other compounds containing a benzothiazyl group, benzotriazole with an azole group bonded to the benzene ring, and a phenyl group bonded to this 2— ⁇ 2 '—Hide mouth xy 3' ⁇ (3 ", 4", 5 ", 6 tetrahidrophthalide midemethyl) 1 5'-Methyl D two Le ⁇ one base Nzotoria Zole (2 HPMMB), 2- ⁇ 2'-Hydrox-5'-Methylphenyl ⁇ -Benz
  • the mixing amount of the above-mentioned active ingredient is preferably 0.1 to 10 parts by weight with respect to 100 parts by weight of the vibration damping liquid.
  • the amount of the active ingredient is less than 0.1 part by weight, the effect of adding the active ingredient to increase the amount of the dipole moment cannot be obtained, and the amount of the active ingredient is not more than 10 parts.
  • the amount exceeds the parts by weight the amount of the dipole moment may not increase even though the active ingredient is added in an amount exceeding the B parts by weight.
  • the active ingredient is not limited to one kind, and two or more kinds can be mixed.
  • the amount of the dipole moment varies depending on the type of the vibration damping liquid and the active component. Also, even if the same vibration damping liquid or active component is used, the amount of dipole moment varies depending on the temperature at which the vibration energy is transmitted. Ma 0 The amount of dipole moment varies depending on the magnitude of the transmitted vibrational energy. For this reason, considering the temperature and the magnitude of vibration energy when applying the composition, it is necessary to select and use the vibration damping liquid and the active component so that the largest dipole moment is obtained at that time. Is desirable.
  • FIG. 1 is a schematic diagram showing a dipole in a vibration damping liquid.
  • Figure 2 is a schematic diagram showing the state of the dipole in the vibration damping liquid when vibration energy is applied.
  • FIG. 3 is a schematic diagram showing a state of a dipole in a vibration damping liquid when an active ingredient is blended.
  • FIG. 4 is a graph showing the elastic tangent (ta ⁇ ⁇ ) of each of the compositions of Examples 1 to 4 and Comparative Examples 1 and 2 at 20 ° C. and 30 Hz.
  • Example 3% by weight of each of ethylene glycol (EG) and DC EBSA (Example 1), 2 HPMMB (Example 2), MBTS (Example 3) and HMPS (Example 4) as active ingredients were added.
  • a vibration damping liquid composition was prepared.
  • an EG solution containing no active ingredient alone (Comparative Example 1) and a EG solution mixed with 3% by weight of DOP (Comparative Example 2) were prepared.
  • the elastic tangent (ta ⁇ ) at 20 ° C and 30 Hz was measured for each of the above vibration damping liquid compositions.
  • the vibration damping performance was evaluated.
  • Fig. 4 shows the results.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Vibration Prevention Devices (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

La présente invention porte sur une composition de liquide d'amortissement pouvant être appliquée en combinaison avec une matière viscoélastique qui est capable d'améliorer fortement la capacité d'amortissement d'un liquide d'amortissement, d'arrêter suffisamment la propagation des vibrations et du bruit, et de présenter un effet anti-vibration incontestable du fait qu'elle contient un constituant actif qui augmente le moment dipolaire du liquide amortisseur.
PCT/JP1998/003910 1998-08-31 1998-08-31 Composition de liquide d'amortissement WO2000012646A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP1998/003910 WO2000012646A1 (fr) 1998-08-31 1998-08-31 Composition de liquide d'amortissement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1998/003910 WO2000012646A1 (fr) 1998-08-31 1998-08-31 Composition de liquide d'amortissement

Publications (1)

Publication Number Publication Date
WO2000012646A1 true WO2000012646A1 (fr) 2000-03-09

Family

ID=14208911

Family Applications (1)

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PCT/JP1998/003910 WO2000012646A1 (fr) 1998-08-31 1998-08-31 Composition de liquide d'amortissement

Country Status (1)

Country Link
WO (1) WO2000012646A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012077895A (ja) * 2010-10-06 2012-04-19 Kinki Univ 吸収体およびその使用方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5770534U (fr) * 1980-10-17 1982-04-28
JPH05272583A (ja) * 1992-03-30 1993-10-19 Tokai Rubber Ind Ltd 液体封入式防振装置の製造方法
JPH1077417A (ja) * 1996-09-03 1998-03-24 Cci Corp 衝撃吸収材

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5770534U (fr) * 1980-10-17 1982-04-28
JPH05272583A (ja) * 1992-03-30 1993-10-19 Tokai Rubber Ind Ltd 液体封入式防振装置の製造方法
JPH1077417A (ja) * 1996-09-03 1998-03-24 Cci Corp 衝撃吸収材

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
KUKHTO, I. N. et al., "The width of the rotational contour of vibrational and vibronic bands of complex Molecules in the gas phase as a temperature indicator", J. Appl. Spectrosc., Vol. 64, No. 3, 1997, pages 325 - 330. *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012077895A (ja) * 2010-10-06 2012-04-19 Kinki Univ 吸収体およびその使用方法

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