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JPH0157205B2 |
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JPH0156698B2 |
A shaker table 38 for vibrating test items 42 is vibrated in all directions by a plurality of vibrators 34 which are controlled a) in a preprogrammed manner to automatically vary their output to enhance the randomness of the vibrations t...
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JPH0156203B2 |
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JPH0156205B2 |
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JPH0156204B2 |
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JPH01293412A |
PURPOSE:To prevent the collision with a vibration proof object and a fixed structure from generating and to cut off a micro vibration by impressing a bias voltage to the coil of an electromagnetic actuator and correcting respective relat...
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JPH01289644A |
PURPOSE: To restrain remaining vibration from occurrence by calculating the natural frequency of a structure with the detecting signal of a vibration detector to generate a control signal for driving an actuator according to the natural ...
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JPH01286005A |
PURPOSE:To improve a response speed by setting a feedback quantity when the value to subtract a target value from the forecasting value of a power transfer system twist angle is not positive smaller than the feedback quantity when the va...
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JPH01284793A |
PURPOSE: To suppress the vibration of a substrate and a substrate support part by driving a vibrator with the output signal of a sensor for measuring the vibration and canceling the vibration of the substrate. CONSTITUTION: The substrate...
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JPH0153333B2 |
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JPH01280238A |
PURPOSE: To measure variation in the rigidity of a test piece without interrupting a fatigue test by placing a repetitive load of invariably the same vibration frequency with the natural vibration of a mechanical vibration system on the ...
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JPH0136976Y2 |
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JPH01276316A |
PURPOSE:To suppress the vibrations occurring at the tip of an arm body by selecting one of those signals outputted from plural control gain setters of different gain characteristics in response to the deviation between the arm angle and ...
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JPH01503089A |
A servo loop control for the dither drive of a Coriolis rate sensor is provided. The dither drive includes a pair of electromagnetic coils (70), which are alternately energized to dither a parallelogram frame (50), on which first and sec...
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JPH01258011A |
PURPOSE:To improve vibration insulating performance and objective value follow-up performance by adding the output of an accelerometer to the output of a displacement sensor by an adder through an HPF and a double integrator and using th...
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JPH01247304A |
PURPOSE: To reduce rolling of mase of a stacker crane employed in a cubic warehouse by determining a rolling model when the stacker crane travels or stops and determining a method for shortening the damping time of roll based on the roll...
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JPH0131714Y2 |
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JPH01135512U |
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JPH01135248U |
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JPH01227038A |
PURPOSE: To automate the compensation of a change in vibration acceleration accompanying a change in a load, by detecting a hydraulic pressure in a hydraulic pressure chamber of a hydraulic cylinder and by adding a compensation signal ca...
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JPH01221630A |
PURPOSE: To carry out a stable model experiment without causing the return of the displacement of an actuator nor mutual interference, etc., by controlling the actuator directly with the digital signal from a computer and using a mechani...
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JPH01216413A |
PURPOSE:To perform control with high control accuracy by providing a current control means to generate a current corresponding to an alternate power detection signal, and obtaining the current to be supplied to a displacement generating ...
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JPH01214912A |
PURPOSE:To efficiently attenuate the vibration of a structure by using an electrodynamic actuator as a structure vibration absorber and controlling a counter electromotive force produced by vibrations by means of structure vibration sign...
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JPH01213703A |
PURPOSE:To effectively attenuate oscillation by delaying the phase of the detection signal of an alternating power detecting means in a first-order integral means by 90 deg. and outputting the phase-delayed signal to a corresponding disp...
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JPH01209512A |
PURPOSE:To decrease the number of circuit component elements for reduction of the cost by controlling continuously the read timing synchronously with the rotation of a vibrator. CONSTITUTION:The data transmission timing given from an add...
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JPH01207575A |
PURPOSE: To reduce an additional weight and reduce the electric power necessary for driving an actuator by installing a supporting body which can be swung in the horizontal direction and a fluid damper which extends and contracts in the ...
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JPH01207574A |
PURPOSE: To reduce an additional weight and reduce the electric power necessary for driving an actuator by installing a supporting body which can be swung in the horizontal direction and a fluid damper which extends and contracts in the ...
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JPH0138984B2 |
An apparatus for damping bounce-induced oscillations in an internal combustion engine having a fuel metering control for supplying fuel to the engine in accordance with various operational signals, which includes an engine speed sensor f...
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JPH01191911A |
PURPOSE:To realize the active absorption of vibrations with high accuracy by calculating the control signals which set the detection signals which are obtained independently and synchronously with each of rotors of vibration sources and ...
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JPH01113068U |
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JPH0133772B2 |
A stability control system for a vibration test device having an acceleration control system and using an electro-hydraulic servo-system is disclosed. The stability control system comprises a model operation circuit which simulates a mod...
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JPH01173117A |
PURPOSE:To correct the bending of a robot arm caused by the gravity as well as the continuous oscillation and to realize the positioning control by using a variable LPF means in place of a conventional variable BPF means. CONSTITUTION:A ...
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JPH01156200A |
PURPOSE: To relieve torsional oscillation, in a spacecraft, by step-moving a stepping motor for moving a solar array at time intervals equal to one-half of the torsional oscillation period of a device. CONSTITUTION: A solar-array 14 serv...
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JPH0128617B2 |
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JPH01129313A |
PURPOSE:To extend the band of a servo without decreasing the responsibility of a servo system even near a resonating frequency of a machine by executing control so as to eliminate the secondary unstable component of the machine, which is...
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JPH01124009A |
PURPOSE:To change inherence oscillation frequency and to prevent the generation of resonance by changing stress to be applied to a substance for preventing the generation of oscillation when a resonance state is generated and oscillation...
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JPS6487934A |
PURPOSE: To actively damp the vibration of a vibrated body occurring along with drive for readily realizing precise positioning and high speed operation by emitting sound waves for damping vibration toward a vibrated section. CONSTITUTIO...
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JPS6431412U |
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JPS645143Y2 |
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JPS648414A |
PURPOSE:To prevent respective parts connected to a supported object from being broken by providing a position controlling vibration-proof support device and a fixing device when abnormal occurs and automatically holding the supported obj...
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JPS63199312U |
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JPS6343217Y2 |
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JPS6351259B2 |
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JPS63231511A |
PURPOSE:To prevent a fine oscillation by laying a piezoelectric element at a part of a supporting device and controlling the thickness of the piezoelectric element with a voltage to impress so that an oscillation load to communicate to t...
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JPS63221410A |
PURPOSE:To attain the vibration attenuating control by fixing both a piezoelectric actuator and the mass onto an attachment base in the same working direction with accelerometers provided to both the attachment base and the mass and calc...
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JPS63128439U |
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JPS63127452U |
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JPS6395708U |
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JPS6394083U |
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JPS63143611A |
PURPOSE:To control rapid or highly oscillated motion by applying force or the moment of force in the reverse direction against speed when displacement is applied in the same direction as that of the speed. CONSTITUTION:When displacement ...
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