Next generation actuators leading breakthroughs tadokoro satoshi higuchi toshiro suzumori koichi. Toshiro Higuchi 2019-02-03

Next generation actuators leading breakthroughs tadokoro satoshi higuchi toshiro suzumori koichi Rating: 8,1/10 1270 reviews

Toshiro Higuchi

next generation actuators leading breakthroughs tadokoro satoshi higuchi toshiro suzumori koichi

It was revealed that the coarse tweed contrast was associated with a long wavelength strain field while the fine striations are associated with the satellite spots and domains of micromodulation aligned parallel to {110}. The inner diameter and length of the motor are 9 and 10. Finally, we show smooth human-operated turn-around motion similar to that seen in real fish. So, the feed-forward controller can be augmented to the feedback controller to realize high speed and precision tracking. It controls the pressure and flow rate simply, effectively and separately. Computed results were compared with magnetic induction measured on prepared test bench. However, for advanced machines and instruments with higher performance, the conventional motors seem to be difficult to satisfy the coming sophisticated demands.

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(PDF) Next generation actuators leading breakthroughs

next generation actuators leading breakthroughs tadokoro satoshi higuchi toshiro suzumori koichi

It is demonstrated that an amplification factor of up to 18 times is possible using the silicon Moonie amplification mechanism, resulting in displacements of 82 µm and 60 µm at an applied voltage of 70 V for the X and Y directions, respectively. However, its displacement is very small; thus Moonie amplification mechanisms are integrated to magnify the displacement. In the present study, we describe the major disadvantages of the previous prototype of the robotic fish and improvements of the prototype. The advent of new, outstanding actuators will bring innovation to a range of different areas? There is no conventional fiber sleeve on single chamber actuator that can offer bending motion. The motor can be driven in the shearing and bending vibration modes. The results show that the piezoelectric constant d31 is very important: the higher the mode of vibration, the smaller the tip amplitude; the lower the mode of vibration, the higher the sensitivity. The driving performance of the actuator was examined experimentally.

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(PDF) Next generation actuators leading breakthroughs

next generation actuators leading breakthroughs tadokoro satoshi higuchi toshiro suzumori koichi

Previously, sliders with no projections on the flat-plane surface could not provide stable drive because of contact electrification occurring due to the low electrical conductivity of the lithium niobate stator. By using this valve, a simple method has been fulfilled to control flow rate or pressure of ideal gases in a pneumatic actuators. The developed device is constructed with McKibben type rubber artiåcial muscles and an appliance, a torque sensor. Experimental results demonstrated applications of the proposed valve to control either pressure or flow rate in pneumatic circuits. Recently the demand for a fast and precise actuator in semiconductor industries is growing larger. In peripheral machines for computers like disc memories, small and thin actuators are necessary to satisfy the demand of reduction of thickness and weight of the products.

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(PDF) Next generation actuators leading breakthroughs

next generation actuators leading breakthroughs tadokoro satoshi higuchi toshiro suzumori koichi

A prototype actuator was produced and driven by applying a voltage of below ± 1. Conventional actuators still play the most important roles in motion control of automated machines. This valve can be also used in the pilot stage valve to actuate the main stage of a much bigger pneumatic valve. For this purpose, a Bouc—Wen model based hysteresis compensator is first applied to mitigate the hysteresis nonlinearity without the complex inverse hysteresis calculation. In this paper, a new bending type actuator is introduced which the bending motion can be realized when braided fibers reinforcements on the cylindrical actuator rubber inner layer are formed from two different fiber angles. These theoretical results qualitatively correspond to the experimental results. Careful attention has been addressed in the integration of the required components in a proper architecture that can be managed by a single user.

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(PDF) Next generation actuators leading breakthroughs

next generation actuators leading breakthroughs tadokoro satoshi higuchi toshiro suzumori koichi

Finite element method simulation is carried out to obtain the microstage performance and identify its design parameters. In the robotic fish, the unique motor actuates a flexible caudal fin to propel the robot via an elaborate power transmission system. Thus, the flat-plane slider is expected to obtain a higher output force than the slider with projections. Also, the higher the elasticity or viscosity of the object in contact with the sensor, the higher the sensitivity. In this paper, we will present the theoretical analysis and experimental verification of the hybrid driving technique for this motor. In order to benefit from the resonance operating conditions of ultrasonic motors and the structural superiority of inertial type piezoelectric motors, we blend these two drive methods as the new hybrid technique. Applications of actuators have increased in various fields.

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(PDF) Next generation actuators leading breakthroughs

next generation actuators leading breakthroughs tadokoro satoshi higuchi toshiro suzumori koichi

And as examples of actuators and manipulations using electrostatic force, powerful electrostatic motor, thin film electrostatic motor, electrostatic transportation devices of particles and droplets, and electrostatic suspension are described. The purpose of this study is to develop a wearable master-slave lower limb training device for a trainer and a trainee. Next-Generation Actuators Leading Breakthroughs also deals with common fundamental technologies for these actuators, such as intelligent materials, machining processes, control technologies, evaluation methods, and system integration. Experimental results confirm that the output power and torque of the motor are 21 times and 7. In addition, we present experimental evaluations related to the control parameters and locomotion performance of the robotic fish.

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(PDF) Next generation actuators leading breakthroughs

next generation actuators leading breakthroughs tadokoro satoshi higuchi toshiro suzumori koichi

The desired output mass flow rate of the valve is controlled by the pressure changes during positioning of piezoelectric actuator at proper position. The actuator should provide sufficient force and flexibility in movement. We report herein the results of measurements of the flat-plane slider driving characteristics such as the no-load speed and output force. . This predicted value was in good agreement with the experimental result of 7 mu m. In some cases conventional actuators seem to be difficult to satisfy these new and advanced demands. The bonding interface between TiAu and Co was observed by a scanning electron microscope and concentration profiles were measured by an energy-dispersive X-ray spectroscopy.

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(PDF) Next generation actuators leading breakthroughs

next generation actuators leading breakthroughs tadokoro satoshi higuchi toshiro suzumori koichi

By using the finite-element method, the motor vibration modes and driving mechanism were modeled. Using the values of the activation energy and the diffusion constant, the thickness of the diffusion layer was predicted to be sufficiently thin: 2 mu m by the hot pressing at 1073 K for 10 h. The translational-rotary dual-mode motor can be driven by single source. These alloys are a new class of smart materials which can generate strains and force in external magnetic field. So, the development of innovative actuators is recognized as one of the most important subjects of the key technology for next generation.

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