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1. 发明专利

JPH10227149A INSTALLATION METHOD FOR PIEZOELECTRIC ACTUATOR 失效
公开(公告)号：JPH10227149A
公开(公告)日：1998-08-25
申请号：JP3352497
申请日：1997-02-18
申请人： TAKENAKA KOMUTEN CO , FUJITA TAKASHI , SUMITOMO HEAVY INDUSTRIES
发明人： TOYAMA KOTARO , MURAI NOBUYOSHI , AIZAWA SATORU , FUJITA TAKASHI , KAMATA TAKAYOSHI , HATAYAMA TAKAYOSHI , ARIKABE TAKEO
IPC分类号： E04H9/02 , F16F15/02 , G05D3/00
摘要： PROBLEM TO BE SOLVED: To decrease the number of piezoelectric actuators and obtain damping performance by making the number of piezoelectric actuators arranged at the outer edge section of a column that faces the outside of a building in the control direction of the building larger than that of those arranged at the inner edge section of the column that faces the inside of the building. SOLUTION: Axial force and bending moment control is carried out in each column member and piezoelectric actuators are installed only at the outer edge section of a column. Therefore, even if same phase or opposite phase control voltage is applied to both inner edge and outer edge, piezoelectric actuator count components that contribute to control will increase. In addition, of given piezoelectric actuators, the number of piezoelectric actuators which permit to obtain the best damping performance and realize the same damping performance is minimized. Therefore, the number of piezoelectric actuators installed is cut while maintaining damping performance. Therefore, labor needed for installing piezoelectric actuators can be reduced, and load of a piezoelectric actuator controller can be lowered.

2. 发明专利

JP2001173655A JOURNAL BEARING 失效
公开(公告)号：JP2001173655A
公开(公告)日：2001-06-26
申请号：JP35980899
申请日：1999-12-17
申请人： SUMITOMO HEAVY INDUSTRIES
发明人： ARIKABE TAKEO
IPC分类号： F16C32/06
摘要： PROBLEM TO BE SOLVED: To provide a journal bearing having a large load carrying capacity and a low vibration. SOLUTION: A plurality of recesses 11 are disposed in a helical tooth form in a multi-recess type hydrostatic bearing 1. Each recess 11 is formed in a belt-shaped area slanting with respect to the generating line of a curvature in the inner wall of the hydrostatic bearing 1. Accordingly an inner wall area in which the load carrying capacity is small is evenly distributed in a central axis direction as it circumferentially rotates, thereby reducing a vibration due to the rotational constituent of a load applied to the hydrostatic bearing 1. When a recess 31 of dogleg shape is formed, a thrust load is not generated in a hydrostatic bearing 3.

3. 发明专利

JPH07259924A VIBRATION CONTROL SYSTEM OF STRUCTURE 失效
公开(公告)号：JPH07259924A
公开(公告)日：1995-10-13
申请号：JP5562994
申请日：1994-03-25
申请人： SUMITOMO HEAVY INDUSTRIES
发明人： ARIKABE TAKEO
IPC分类号： E01D1/00 , E01D19/14 , E04H9/02 , F16F15/02
摘要： PURPOSE:To improve the vibration damping performance by providing a computing element which sequentially reads the integrated values from the memory to calculate the main tower vibration RMS value, multiplies the gain and the integrated value converted by an integrator together, and divides the obtained value by the main tower vibration RMS value to realize the computation. CONSTITUTION:The acceleration of a structure to be detected by a sensor is received by a controller through an A/D converter 7, and after being converted to the displacement by passing an integrator 8 twice, the obtained value is multiplied by the gain G in a computing element 9, and divided by the main tower vibration RMS value which is computed separately. The obtained value is received by a driver through a D/A converter 11. The displacement is stored in a memory 10, and used to compute the main tower vibration RMS value. Thc driver drives an actuator by the speed as the quantity proportional to the inputted computed results. If the acceleration is detected as the quantity of the vibration of the structure by a sensor, and the value of the displacement is computed, an integrator can be dispensed with.

4. 发明专利

JPH05116623A FAN DUCT WITH SILENCER FOR HOVER CRAFT 失效
公开(公告)号：JPH05116623A
公开(公告)日：1993-05-14
申请号：JP19364391
申请日：1991-07-09
申请人： SUMITOMO HEAVY INDUSTRIES
发明人： KATO HIROYUKI , ARIKABE TAKEO
IPC分类号： B60V1/14
摘要： PURPOSE:To effectively reduce exhaust noise in a hover craft by making the whole fan duct as a silencer so as to have silencing effect due to sound absorp tion across the full length of the fan duct. CONSTITUTION:In a hover craft of which a running body is provided with a rotary fan 15 and the running body is run or floated up by exhaust discharged from the fan 15, a Helmholtz type silencer 12 or a silencer 12 formed out of sound absorbing material is provided in a fan duct 11 provided with the fan 15 integratedly and internally, and the resonant frequency or the sound absorbing frequency is set so as to favorably absorb the vibration of frequency passing through the blades of the fan 15.

5. 发明专利

JPH11231877A ACTIVE SOUND SILENCING SYSTEM 失效
公开(公告)号：JPH11231877A
公开(公告)日：1999-08-27
申请号：JP3323798
申请日：1998-02-16
申请人： SUMITOMO HEAVY INDUSTRIES
发明人： ARIKABE TAKEO
IPC分类号： B60R11/02 , G10K11/178
摘要： PROBLEM TO BE SOLVED: To provide an active sound silencing system capable of displaying a high sound silencing effect for any type of noise sources. SOLUTION: This system has an adder 50 for adding and outputting an engine revolution signal as a noise source characteristic signal showing the characteristic of an engine 61 as one of noise sources, and a noise signal showing an actual noise level in a cabin 70 adjacent to the noise source to a filter 11. This filter 11 generates an interference signal showing an interference sound having a phase opposite to the noise but the same amplitude on the basis of the noise source characteristic signal and the noise signal, and an interference sound on the basis of the interference signal is outputted from a speaker 30.

6. 发明专利

JPH0791486A ACTIVE TYPE VIBRATION DAMPING DEVICE 失效
公开(公告)号：JPH0791486A
公开(公告)日：1995-04-04
申请号：JP23391693
申请日：1993-09-20
申请人： SUMITOMO HEAVY INDUSTRIES
发明人： EBARA NOBUO , KATO HIROYUKI , ARIKABE TAKEO
IPC分类号： F16F15/02 , E04H9/02
摘要： PURPOSE:To provide a biaxial type active damping device which damp vibration in all directions in a horizontal plane through a simple mechanism and one measure. CONSTITUTION:A horizontally support measure 20 is supported to an upper support plane C paralleling the measure by means of four wires 21 intercoupled in the same height position as that of the center of gravity of the measure. Further, the measure 20 is supported by two hydraulic cylinders 22a and 22b located within planes A and B, passing the center of gravity G and crossing each other at right angles, and obliquely supported at the center of gravity G of the measure and the upper support plane C through respective ball joints 3. This constitution performs damping in all directions and operates the component in an X-direction of vibration by the cylinder 22b and a component in an Y-direction by the cylinder 22a without intercoupling the two hydraulic cylinders 22a and 22b and improves a damping effect.

7. 发明专利

JP2000284784A SOUND AND VIBRATION PROOF STRUCTURE 失效
公开(公告)号：JP2000284784A
公开(公告)日：2000-10-13
申请号：JP9219699
申请日：1999-03-31
申请人： SUMITOMO HEAVY INDUSTRIES
发明人： ARIKABE TAKEO
IPC分类号： G10K11/16 , E04B1/86 , F16F15/02
摘要： PROBLEM TO BE SOLVED: To provide a sound and vibration proof structure which is low in price and has sufficient effectiveness in sound and vibration proofing. SOLUTION: One end portion of an external frame 11 is made open and the open section is covered by a panel 12. The panel 12 is used as a separating wall or a cover which partitions first space from second space. The panel 12 is arranged between the frame 11 and a fixed frame 13 and is mounted, for example, to the frame 11 by screws 14 with the frame 13. Note that the panel 12 is slightly distorted.

8. 发明专利

JPH07286640A VIBRATION CONTROL METHOD AND VIBRATION CONTROLLER CAPABLE OF COPING WITH LOWER ORDER MODE VIBRATION AND HIGHER ORDER MODE VIBRATION 失效
公开(公告)号：JPH07286640A
公开(公告)日：1995-10-31
申请号：JP7888994
申请日：1994-04-18
申请人： SUMITOMO HEAVY INDUSTRIES
发明人： ARIKABE TAKEO
IPC分类号： E01D1/00 , E01D19/14 , E04H9/02 , F16F15/02
摘要： PURPOSE:To realize space saving and cost saving by removing the method of coping with plural mode vibrations by means of plural vibration controllers, coping with plural mode vibrations by means of one vibration controller. CONSTITUTION:By a lower order mode pendulum type vibration controller 25 consisting of an outer frame 25a and a weight 29 suspended through a pendulum arm 30 in the outer frame 25a and a higher order mode vibration controller consisting of the outer frame 25a of the vibration controller 25 supported by means of another pendulum arm 26, and a pendulum that makes the mass of the outer frame 25a a weight, a lower order vibration mode and a higher order vibration mode that is higher than the former mode by one step can be coped with.

9. 发明专利

JPH0616197A PIEZOELECTRIC ACTUATOR FOR CONTROLLING OSCILLATION OF SPACE STRUCTURE 失效
公开(公告)号：JPH0616197A
公开(公告)日：1994-01-25
申请号：JP29600991
申请日：1991-11-12
申请人： NEC CORP , SUMITOMO HEAVY INDUSTRIES
发明人： SEKINE KOJI , ARIKABE TAKEO
IPC分类号： B64G1/38 , F16F15/02 , H02N2/00
摘要： PURPOSE:To provide such a piezoelectric actuator as generates a large braking force with a light weight, being simple in structure, as well as high performance in turning by providing a plurality of piezoelectric elements arranged in series while held between an inner and outer cylinders. CONSTITUTION:Piezoelectric elements 1 are held by spacers 2 and subjected to initial compression by a preload spring 6. The kind of piezoelectric elements (sectional area, piezoelectric coefficient, length and number) is determined arbitrality, and thus the performance of an actuator can be tuned arbitrality. An outer cylinder 3 and an inner cylinder 4 slide and restrains generation of influence at the time when shearing force and bending moment are applied to the actuator. A displacement sensor 9 detects the extension/contraction of the actuator, caused by oscillations of a space structure, and the elongation/ contraction speed, and a controller outputs a proper control voltage restraining the oscillations according to the sensor value. Consequently, the piezoelectric elements 1 of the actuator elongate/contract to attenuate or control the oscillations of the space structure speedily through a rod (1) 7, a rod (2) 8.

10. 发明专利

JP2000252538A STRUCTURE AND METHOD FOR MOUNTING PIEZOELECTRIC ELEMENT ON PANEL 失效
公开(公告)号：JP2000252538A
公开(公告)日：2000-09-14
申请号：JP5377999
申请日：1999-03-02
申请人： SUMITOMO HEAVY INDUSTRIES
发明人： ARIKABE TAKEO
IPC分类号： H01L21/52 , H01L41/09
摘要： PROBLEM TO BE SOLVED: To efficiently generate large deformation in a panel by dividing an adhering face of a piezoelectric element into a plurality of regions in one direction and selectively attaching one region out of these divided regions to the panel. SOLUTION: When mounting a piezoelectric element 12 on a panel, an adhering face of the piezoelectric element 12 is divided into three resions in the Y direction and only the central region is attached to the panel 11. When applying voltage to the piezoelectric element on the panel 11 in such a method, the deformation generated in the panel 11 is dominated by bending moment in the X direction and there is few influence from bending moment in the Y direction. That means the deformation of the panel 11 generated by the bending moment in the X direction is hardly canceled by the deformation generated by the bending moment in the Y direction, and therefore large deformation of the panel 11 can be realized. As a result, the piezoelectric element on the panel 11 can be efficiently vibrate or damp the panel.

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