JPS5923140A - Vibration absorbing method - Google Patents

Abstract

PURPOSE:To obtain an remarkable vibration absorbing effect by picking up relative vibration displacement of an engine and a mounting base and applying a voltage to an electric distortion element with a phase difference of 180 deg.. CONSTITUTION:A vibration absorbing means 100 is constructed such that a lamination of electric distortion elements 3 is placed between plate members 1 and 2 and they are tightened with bolts 4 and 5 and a vibro-isolating rubber member 12 is connected to the means by sandwiching by a plate member 11 and the plate member 2. The plate member 1 is tightened to an Internal combustion engine 101 which is a source of vibration with a mounting bolt 13 while the plate member 11 is tightened to a car body 102 with a bolt 14. A voltage generator 20 receives both electric signals having the amplitudes of the vibrations of the engine and the car body from vibration pickups 21 and 22. When the generator 22 generates a sine wave signal which is synchronous with and 180 deg. out of phase with the engine vibration given to the vibration absorber 100, the laminate of the electric distortion element 3 produces distortion in its laminated direction to vibrate 180 deg. out of phase with the forced vibration of the Internal combustion engine, thereby avoiding transmission of the engin vibration to the car body.

Description

[Detailed Description of the Invention] This method relates to a method for preventing the transmission of vibrations from the motive force to the vehicle body, particularly in the case of automobiles. One minute on the vibration absorption method.

General 11 double-acting inner gear used for automatic vehicles etc.
,,lj (j, (y1 is the fluctuation of gas pressure, rotational quality!11, unbalance of reciprocating v1 suspension, etc. (=depending on the number of rotations between one layer and the resulting excitation force) forced vibration of this frequency. This vibration is transmitted to the suspension system via the internal combustion (suspension system i''1 from the car between the layers), causing discomfort and fatigue to the nails due to the vibrations and sound.

(; Measures to reduce vehicle body vibration, which causes circumferential vibration to be the vibration source, are the following methods) Z fj"T-'3 is J3, one of which is balance shift 1- etc 'Cil' is a measure to avoid strong control of internal relations (measures to reduce dynamic vibrations).
jsu, ((One of the mouths is internal combustion (car body between layers J:suσHj&
ri lj 'iJ < defense 1h"< 2im mutual trade in the stomach,
According to the prevention 1, 1 *GolX station h' (jl (Seki vibration fi
):l; Decrease the vibration level of engine vibration transmitted to the car body to a low I
・This is a measure to Internal combustion (((Please give me the vibration level of the concave forced vibration (1,!)
Although the dynamic reduction effect can be increased to 11, the power loss due to the drive of the balance shift] is J, and the internal combustion (;, (Seki's!
, "t, ■: B" f-, B 1111, and there may be problems in durability. The anti-vibration rubber system suppresses the transmission of engine vibration to the vehicle body by reducing the vibration-proof rubber system's limited φυ reduction.
However, it is impossible to reduce engine vibrations and vehicle body vibrations caused by vibration sources.

Thurs yt: Light is the gap between the internal combustion gap and the vehicle body (1.
”: During one path, h? transmits the vibration transmission path] 11) Collect the limb movements and C-'
I, ? (J1 dynamic suction II to enjoy the vibration absorption effect
To provide the M fj method (exactly).

According to Woodworking and Akira, such target 1-1 is the electrostrictive element (autumn story) in the middle of J8 1. Two steps, the electrostrictive cable f
Detecting the change in Jhv width on the 11 side of the 11 movement and the temporal change in the amplitude of the 1 movement on the vibration exit side of the electrostrictive element, -C To reduce the amplitude of the vibration on the vibration outlet side by 4゛ (17, 11UJ
Voltage that changes! 'IG i,j 'flx jl
'.

Basic! ' → λ-1 Transmission of vibration in the above vibration transmission jッ ``1) 4 The electric current A is absorbed by the electric force of the chord 11'y,:
11K [vibration absorption f which slightly removes fli'1r
It is achieved by J method.

According to the vibration absorption method of the present invention, the electrostrictive bar 1-j' is subjected to electrostrictive vibration by applying lightning I' which changes in a linear manner to the two detected values. Me, child is i'+i
The distortion, 1(I
L5-<#)+ with a phase difference of (, 1180') from the vibration, and the displacement of the lfQ movement of the electrostrictive element and the vibration transmission rod r (Te4 transmission) The displacement of the vibration transmitted through the vibration transmission path is canceled out, and the displacement of the vibration transmitted through the vibration transmission path is 1
1. ) l! be done. Please refer to the figure below.
(Kimitsumei 4 real fAlj example will be explained in detail. 1st
FZI 411 Kimi Akira +, i, l, ru 1 movement suction If
! jr '+) Vibration absorber 1 used for this implementation! ! An example is shown below. Vibration absorption;
IV, mounting P'l 1001J, '! In the first place, one piece of root opening '1 and 2 is placed facing each other, and two and more 4 (L's laminates of electricity purchaser elements 3 are placed (i and 43). , board part 4A1 ,, 2 iJ the above-mentioned portrait of -C!,
'i) Depends in l'/i direction ℃pol 1-4 and 5 and (-ni, 1, s 1j, 1 drift 1j sa 4).

Katsuko Raiichi 33 sheets are each made of butane high 2 barium l\'S relamic material, and the sheet thickness is polarized in the thickness direction and changes the sheet thickness according to the voltage of the DC current applied between the sheet surfaces.
Attach it so that it causes distortion in the direction of the curve 3).

It is clearly shown in Figure 2 that θI < , ? L7:
I2 first child 31j, 'G: ♂' frost (laminated with turning plate G and 07 in between 4, one 71 ()^i plate 6 is electrostrictive element 3'S
One side of the laminate (7tS (Mi connection part kA
8 Myo'l lj IIc 4- >fil contact (
B, Sashishi, :Jl co((p fj electrode plate 7 is city n5
-C electrode connection part +4 on the side of 1)
By applying a voltage between the two electrode connecting members 8 and 9, electrical conduction is established between the electrodes 8 and 9.
(11-Sai M 7 [iJ
There is one C applied to J5.In addition, in Figure 9.52, 10 indicates the city ° faint 61 part moon,
Octopus 11% dynamic absorption device 100 J3, the plate part 4A
'+ 1 and board part □ so 2 are provided between this drawing board part 41. :=i or rubber; 0 Anti-vibration rubber member 12 made of pseudo-crystal i; 2J, L7 (, 2)! l! It is withered.

Port l-13, 11 for Itabetsuki 1 and 1-1 respectively.
Installed: Jl3rec. For example, as shown in Figure 413), provisional γi
The internal combustion engine 101 is connected to the engine 101, and the plate 11 is connected to the car body 102 by bolts 14, so that the internal combustion engine 101 is supported by the car body 102 via the absorption device 100. Ru.

Next, in Figure 3 (2)
1 rushing action 11! The device is internal combustion as described in 11 (JJ be between the layers)! l! A method for controlling the voltage applied to the electrostrictive element when applied as a chestnut apparatus will be explained. When implementing this applied voltage control 211 method (,1,11
i A sinusoidal electric current generator 20 is used, and the voltage generator 2
0 iJ, internal combustion 1illIWI takes f=J iJ takes I
C1 Dynamic pickup device 2゛IJ, S (13!) Electricity 1.1 village 4!J is obtained in response to the temporal change in the amplitude of vibration,
J, remove the vibration pickler from the car body 2
From 2, the amplitude and time of car body vibration 't! ,, 1 shi is small t?
[Given an i-signal to these electric stations] 1 (I'C)
Ik% motion (the phase of the engine vibration given to the confiscation device 100 is the same as 1!IJ with a phase difference of '1r30°)
-Shinpa Shinkyu'6〕L/l Zuru. This sine wave signal (maj1
The basic waveform at the vibration pick-up device is shaped into the basic waveform at the vibration pickup device 1ii 'jli and the electric signal j' is 1,7 Quantitative change (11'f becomes 75,''
The amplitude and phase are adjusted accordingly. This sine 711J, 1
4>'3 (J, Jj'1 After J is amplified by the amplifier 233, 71i : rI overcome 33 (2') is obtained. As a result, 711' of each non of the electric current 1! 44
A voltage is applied between +486.7, and this 't(i I
J +L': 4 1 (I) M,,'motion and (,1
This electrostrictive element vibrates with the phase mei 2 of 3.
The resulting engine vibrations are canceled out, and circumferential vibrations are prevented from being transmitted to the vehicle body.

J) Defense II'< Rubber %' + tH (, 12 is generated regularly) Vibration other than engine vibration, example ζpo, external factor +
: 2. Absorb the vibrations generated, and absorb the internal combustion engine's axe, etc. ,! Zuru.

Internal email? (The force that causes the engine to vibrate in the reciprocating direction of the screws is due to the reciprocating motion of the piston, and the force that is generated per screw is expressed by the formula below. .

・・・・・・・・・(-1) 1111: lt'l of reciprocating part tj such as screw I~n
i'1. 'i': Suspension 21゛: Bis [Hens 1~Roke ω: Crankshaft angular velocity C: Tooling coefficient Practically (can be approximated by the formula 10).

・・・・・・・・・ (2) 4: Connecting [1tsudo艮λ=4 y' r here (・, -~(i about 4 to 4 ki 1; 1 internal combustion engine fI 1.
Take I, 1. ：”'J combination, the first term of equation (3) (−order 1
1j1 sexual power) (4, crank: 111 balance J,
To balance the equation.

However, the second + of equation 3), i'i < quadratic [1('l]J
) i; L6 ki 1;;) and becomes the same phase, 4 ki 1:;
1 internal combustion defeat function bow (1'I negative, +1 force [ha/
F + lko1. Fru.

Here in C1! Naturally ;; The maximum of 11113J2 of Shumagi I4
General V (lower jtj iJ Rudo, roar. 1.) one - (internal combustion (!! Maximum 11 width of the gate χ (
31,11θn2χ−X...(5) t'3
Re, Koreha ljl Kankai 111W Q km (F
L! 'I', (, l, (,■-nr). This maximum amplitude is common /lki1;)1knob::!l1If
In ll'1, η is 1': C1Oμ culm degree is 1+; 3
((U3゜Internal combustion 1:! Vibration transmission from the engine to the car body) ヱ(31, Mainly internal combustion) Legend of Agedai) Eka Fo4J
, Internal combustion (primary 1'i ('l force I, 7 jiang II rudo) is ejected as follows.

To . = 1ku χ. 5in2 ω [・
・・・ ・・・ ・・・ (()) 1(: tP, 4c1 constant χ0 of rack equipment: inner gear 1δ (relative amplitude χ−χ1
-χ, ・・・・・・・・・(7) χ1: The amplitude χ2 of the internal combustion engine, the width of one axis of the car body χ2 (51, usually very small) 1(, (As you can see it, χ0kiχ1 You can be a big brother.

Below, it can be seen that the transmission force (1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 5, 4, 5, 5, 5, 5, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, and 10, respectively) transmission forces (1, 1, 2, 1, 2) and 1, 1 and 1 displacement, respectively.

Therefore, (the vibration absorbing device 100 mentioned above has an amplitude of 'r, l!II I'1 G Oμ or so)
Due to the vibration, χ0 - χ2 -0 increases by 4+-, the relative displacement becomes zero, and the transmitted force b' is reduced.

Figures 1 to 6 each show an example of the implementation of the vibration absorption method (2 f JE III Riruru Motion Absorption Device [PY song] in this book. Figs.
;] It is indicated by the same head g as No. 1, 'I.

In the small embodiment shown in Fig. 4 ((J2, plate part (Δ1 and 2
Connect both roots between the vibration isolation section 4A1
2 is installed in the vibration isolation section 4, 4.
3 laminates are buried 11 (there are 11).

In the embodiment shown in FIG.
-'j' 3 laminate is plate part +, 4-1, 2 is replaced by C
-1j (two connected IJ-II/tube members 155.
It is protected between 1 (the upper part of 3 ゛17.1ε).

In the embodiment shown in FIG. CPl,, (ni part (''・'1 and 2 are replaced with Poldonatsu 1-, wa, r)7
Entering belt 19

Figures 4 to 4 (Example I of the times shown in Figure 3)
, l h'? (Also, the same as in the example shown in Figure 18-2/C actual focusing example is applied to the laminated body of electric current 11〒Soryo 3. Each of the electrostrictive elements responds to the strain by applying a voltage that changes with
The effect that the motion angle ICt 4-1113° fits in the above 11 is obtained by 11.

jMe-1-(In this case, I will explain the tree Rmei with a specific fruit f+t!4 examples (as explained in the revised section 111, but the tree Komei is limited to these (-), so <i-, <, Within the range of Mokukomei (
The example of (Φ)/ is ii1 self-hi (rukoto iJ J4
/ How about money? (Obviously Ca's)

[Brief explanation of drawings]

Figure 1 shows an example of the vibration absorbing device to be used. Vibration absorption +t shown in Figure 1
M tool (1st 1'ni;11'+'0child's lamination 47
Enlarged vertical view showing H construction lTl + l'...I side view, 3rd
Figure i;IjM? l) J suck +1x +,! '% position (7
) 'iFi jl Fn rL? ,'l'J mark 11117 An example of vibration absorption It1.' used in implementing the JK absorption method (I,) is shown.
- Side view (there is. 1.2... Board part 4.4.3... Den 11 Basoryo, /l
···bolt. j5...not 1-16.7...711i pole a 19. ε
3, S]...Electrode connection part, '10...Electrical insulation part 4O, 11...Plate part (Δ,'12...Vibration isolating rubber member, '13.1/I...・Take f: l bolt, "5.1 (
3...Kitotsuzo part, 17,')F)...Plane part,
-19...Bell I with soi (), 20...Voltage light body,! + + 2 "l, 22... Vibration big I tube, 23... 1 (゛1 width: ÷: 4, 'I O ('
1... Vibration absorber fFi, 'I Oi...
Internal combustion (Mr. Jun, '+02...Shen (Book 1 "I m'1" Applicant 1.1
(:(,j(11th representative of the association)
Person Bento Sokuto Ming Yi 1 iI+ ゛() 1st figure 2nd figure 3rd figure 4th figure

Claims (1)

[Claims] A 11-chamber strain element was installed in the middle of the Y path (vibrating membrane), and the above-mentioned type,
Temporal changes in the amplitude of the vibration inlet side of the V cable and the front electric power distribution J'
Detecting a temporal change in the amplitude of the vibration on the vibration output L1 side, and using the two detectors to reduce the amplitude of the vibration on the vibration output L1 side to zero. Change 7 [? 11 to 1
10 Power distribution i < element) and the transmission of I&'G motion in the vibration transmission path. It is characterized by a vibration absorption method.