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JP2786731B2 |
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JPH10210781A |
To express an estimated velocity by only a command response component for a velocity command and compensate a vibration easily, by a method wherein a vibration suppression control signal is added to a velocity command and a motor velocit...
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JP2782937B2 |
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JPH10196711A |
To perform consistent and appropriate active control on vehicle vibration by installing a vehicle vibration detection sensor on a vehicle to be inspected, obtaining optimum filter coefficient data, storing them in a storage device, dismo...
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JPH10198436A |
To provide a servo moving device capable of canceling inertia force to be transmitted from a mobile object to an inertia force receiving member. A component supply table 32 is moved by a feed screw 40, a nut and a 1st servo motor and plu...
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JPH10196710A |
To prevent the abnormal sound to occur when a vehicle suddenly starts off or accelerates by calculating the frequency variation between samplings one after the other, comparing the variation with a constant according to the acceleration ...
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JPH10192786A |
To provide a vertically directed vibration generator which is compact and produces little noise and is inexpensive by incorporating plural permanent magnets with it. A substrate 14 and a top plate 18 are connected through a link mechanis...
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JPH10192784A |
To provide a horizontal vibration generator which is compact, low in noise and inexpensive by incorporating an electrodynamic actuator as a driving source. An electrodynamic actuator 26 as a driving source is mounted on a lower frame 2, ...
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JP2778843B2 |
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JPH10184779A |
To improve stability of a control system and conduct DVFB control with a low-priced damping device by setting damping force against bending vibration and a damping moment against torsional vibration independently respectively. At a vibra...
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JPH10187250A |
To suppress the vibration of an equipment itself to be a vibration generation source by reducing the transmission of vibration in a specific direction only by setting up the interval of supporting positions of the equipment on a base. In...
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JP2576196Y2 |
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JP2772371B2 |
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JPH10169702A |
To provide an active, vibration control device which can prevent an acceleration sensor from breaking or a vibration control bed from greatly quaking. In an active type vibration control device, the disturbance-caused vibration of a vibr...
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JPH10170388A |
To provide a controller which can reduce the acceleration distortion of a multi-axis vibrating table system. Five jacks are connected to a vibrating table 10. Of the jacks, those 1A, 3A, and 5A are used for displacement control only and ...
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JPH10169704A |
To provide an earthquake-proof device for a table, which can stop the propagation of vibration from the floor to an OA(office automation) apparatus and which can maintain the horizontal posture of the OA apparatus without necessitating t...
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JPH10174496A |
To change the drive torque, without changing the rotational speed by changing the ratio of the time, when a current flows to only one phase of coil out of plural phases of coils to the time when a current flows to two phases of coils, ac...
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JPH10169700A |
To provide an active vibration suppressing device whereby control performance is improved and causality also can be satisfied. In this active vibration suppressing device, a signal from a vibration detector 1 detecting vibration from a v...
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JP2766723B2 |
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JPH10157827A |
To reduce a noise and an offensive sound, and obtain elliptic vibration having the prescribed major axis and the minor axis by arranging first and second gain setting units between first and second controllers and respective first and se...
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JPH10155289A |
To obtain stable high speed vibration, by making the polarity of a cyclic voltage applied to both phase of electric-mechanical energy conversion elements reverse to each other. A transformer 4 has a primary winding and a secondary windin...
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JPH10147287A |
To provide a vibration isolating device for a ship whereby vibration of auxiliary equipment of cabin, bed, chair, etc., and ship on board loaded object or the like can be suppressed, in the ship of intermediate and small size. This devic...
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JPH10141428A |
To improve transmission characteristics of the vibration from a foundation which is installed. The vibration of a vibration resistant base 31 supported by a support mechanism 32 is detected by a first vibration detection means 34 in a vi...
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JPH10143254A |
To independently control an object for control, to be damped with high performance in three degree of-freedoms in the horizontal direction while decreasing the number of sensors and actuators as much as possible. This device has horizont...
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JP2760196B2 |
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JP2760197B2 |
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JPH10131544A |
To enhance vibration mitigating effect by a method wherein vibration mitigation control is secured by limiting to an active vibration mitigating device, simplification is performed using a diagonal member as an independent frame face, a ...
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JPH10115341A |
To adjust the height of level by a variable adjustment parameter, and to improve a control characteristic, by installing an electric control-type flow control valve which is controlled through an electronic controller on the basis of an ...
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JPH10110772A |
To conduct failure detection in an inoperative condition without special equipment required for it with a simple means and conduct optimum failure detection from hour to hour while conducting its control effectively by detecting failure ...
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JP2743590B2 |
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JPH10102819A |
To install a small-sized controller being easily changed to a vibration damper for a building. A controller 1 for the vibration damper is composed of the flat display picture plane 3 of an FA personal computer 4 with a tough key as an op...
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JPH1091249A |
To facilitate the effective excitation of a vibration system by selecting a ratio between the detection voltage and the control voltage for control of the resonance frequency of a drive system when the control voltage proportional to the...
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JPH1089416A |
To easily obtain signals for control synchronized with engine speed to control exciting force generating means for an active vibration control device. For a rotation member 16 rotating at a rotation speed corresponding to an engine speed...
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JPH1082448A |
To provide an air spring - electromagnetic actuator combined type vibration isolator that can keep a vibration-absorbing table horizontal with the capacity of a relatively small electromagnetic actuator even though the center-of-gravity ...
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JPH1081104A |
To provide a soundproofing method for a railroad wheel constituted of a rim adapted to roll arm a rail, a wheel core and a hub, which attenuates noises emitted from such a wheel rolling of a wide-ranging frequency band, especially of a f...
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JPH1083222A |
To generate a reference signal at low cost for control over the periodic signal. A reference signal generation part generates a one-shot signal V1 synchronized with a fall of a pulse signal VO, generates a delay signal which is delayed i...
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JP2731160B2 |
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JP2729023B2 |
PURPOSE: To minimize pollution without lowering work efficiency by changing the amount of the vibratory force of a vibrator in stepless so as to be almost inversely proportional to a set feeling seismic intensity curve. CONSTITUTION: Whe...
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JP2726675B2 |
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JP2723475B2 |
The cryogenic cooling system includes a piston and motor (28, 32) for cooling a mass by creating a vibration at two frequencies. A balancer mass and motor (30, 34) and a load cell and compensator (48, 50) eliminate vibrations at both fre...
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JPH1065974A |
To easily adjust a rocking resonance frequency of a scanning mirror in the case that a resonance scanning mirror driver is provided. The device is provided with a resonance scanning mirror drive mechanism rocking a scanning mirror 13 wit...
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JP2714905B2 |
PURPOSE: To restrict the resonance of the body to be controlled with a simple construction by controlling the resonance characteristic of the body to be controlled by using a low-pass filter combining a notched filter and an oval functio...
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JPH1037523A |
To make the size of an entire device compact and to make dynamic characteristics almost equal in two horizontal directions. Four movable part support units 1X, 1X, 1Y, 1Y, each of which has two linear bearings 2, 3 for guiding relative r...
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JP2700728B2 |
PURPOSE: To provide feedforward control which is effective to directacting disturbance which can not be coped with by feedback control. CONSTITUTION: This feedforward control method consists of a vibration isolation table main body 2 whe...
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JPH09330133A |
To automatically set a differential gain again only by setting characteristics of a machine system again. A Fourier inverse transformer 3 generates an operation value b* (AC signal) on the basis of an amplitude A* and a frequency F*. Thi...
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JPH09330087A |
To perform identification of a transfer function filter required for adaptive algorithm highly accurately and for a short time without causing failure. A basic period T0 of periodic vibration is calculated in a step 204, after a counter ...
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JPH09326362A |
To sustain the suppression effect of disturbance vibration while suppressing fluctuation of the environmental temperature without being affected by the shift of the center of gravity of a body due to movement of the stage. When the stage...
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JPH09323068A |
To make it possible to execute the adjustment of the phase difference of a movable eccentric weight to a stationary eccentric weight by improving an exciting machine of a structure obtd. by fixing the stationary eccentric weight to a com...
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JP2681603B2 |
PURPOSE: To precisely and automatically follow an oscillator against a resonance frequency of an ultrasonic vibration system which changes corresponding to the temperature's change. CONSTITUTION: An automatic following starting point of ...
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JP2681772B2 |
A vibration control apparatus of the present invention detects a physical value influencing characteristics of a suspension for supporting a vibrating body and a state value representing movement of the suspension, calculates an optimal ...
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