Kabushiki Kaisha Toshiba

Toyota Jidosha Kabushiki Kaisha

Ricoh Company, Ltd.

Hisashi Matsuda

Motofumi Tanaka

Toshiki Osako

Naohiko Shimura

Hiroyuki Yasui

Shohei Goshima

Asako Inomata

Yoshitaka Fukuyama

Kunihiko Wada

Masahiro Asayama

Sueyoshi Mizuno

Hiroyuki Kawagishi

Fumio Otomo

Tamon Ozaki

Fumio Ootomo

Susumu Kinoshita

Yutaka Ishiwata

Amane Majima

Fumio Ohtomo

Shinichi Noda

Yuji Nakata

Toshimasa Yamada

Yoshiki Niizeki

Takeshi Watanabe

Hiroshi Kawakami

Tatsuro Uchida

Noboru Murayama

Shoko Ito

Yusuke Takeuchi

Naoki Shibukawa

Toshio Hirano

Kenichi Yamazaki

Tsutomu Ooishi

Hayashi Taniguchi

Kohei Shintani

Yutaka Uchida

Kenji Osaki

Kazunori Shioda

Akira Konishi

Hideo Nomoto

Hitoshi Sakakida

Kohichi Nakayama

Ikuo Saito

Toshiaki Hirate

Kazuhiro Kitayama

Yuuta Onishi

Daisuke Toyoda

The information processing device includes a processor, and the processor inputs information on a course on which the vehicle travels, setup information on a setup of the vehicle, and feedback information from a driver driving the vehicle into a learned model, and proposes an optimal setup when the vehicle travels on the course based on an output from the learned model.

Information processing device and information processing method

A vortex generating apparatus includes: a member to contact with a flow of a fluid to form a stagnation point and a first and a second separation points on a periphery of a cross section of the member parallel to the flow; a disturbance applying unit to apply a disturbance to an upstream side of the first separation point to cause part of a boundary layer of the flow to adhere; and a controller to temporally control the application of the disturbance to change an adhesion distance from the stagnation point to the first separation point so as to generate a dynamic stall vortex.

Vortex generating apparatus and vortex generating method

A wind power generation system has a windmill, a lift improvement device, a power generator, a storage, and a controller. The windmill rotates when receiving an airflow. The lift improvement device has a capability of operating and halting, the lift improvement device increases a lift force to a blade of the windmill when operating. The power generator generates power by rotation of the windmill and a torque is generated in a direction suppressing rotation of the windmill. The storage stores a plurality of characteristic maps indicating characteristics of the torques of the power generator in relation to rotation speeds of the power generator. The controller controls a power generation amount of the power generator by switching and using the plurality of characteristic maps of the storage in correspondence with a state of operating or halting of the lift improvement device.

Wind power generation system and wind power generation method

An airflow generation device of an embodiment has a main body and a voltage application unit. The main body has a base formed of an insulating material and provided with a first electrode and a second electrode. The voltage application unit generates an airflow by applying voltage between the first electrode and the second electrode. Here, the main body is formed to include a portion which gradually decreases in thickness from a center portion to an end portion.

Airflow generation device and wind power generation system

A voltage application device of an embodiment applies a voltage between a first and second electrode disposed separately from each other in an airflow generation device, which is disposed on a rotation blade of a rotation apparatus, in which a rotation shaft of the rotation blade is held rotatably by a holding part. In the voltage application device of the embodiment, a voltage output unit outputs a voltage. Then, a sliding type transmission unit having electrodes disposed respectively on the rotation blade side and the holding part side of the rotation shaft transmits a voltage outputted from the voltage output unit from the holding part side to the rotation blade side. Then, a transformation unit disposed on the rotation blade side increases the voltage transmitted by the sliding type transmission unit and outputs the voltage to the airflow generation device.

Voltage application device, rotation apparatus and voltage application method

An airflow control devicein an embodiment includes: a vortex shedding structure portiondischarging an airflow flowing on a surface in a flow direction as a vortex flow; and a first electrodeand a second electrodedisposed on a downstream side of the vortex shedding structure portionvia a dielectric. By applying a voltage between the first electrodeand the second electrode, flow of the airflow on the downstream side of the vortex shedding structure portionis controlled.

Airflow control device and airflow control method

According to the embodiment, there is provided a blade vibration measuring apparatus, having, a contactless displacement sensor which outputs a displacement measurement signal as measuring a displacement of a turbine moving blade in a rotation axis direction, a blade top position identifying device which outputs a blade top position identification signal to identify a top position based on a distance between the contactless displacement sensor and the top position of the turbine moving blade as receiving the displacement measurement signal output from the contactless displacement sensor, and a blade vibration calculating device which calculates vibration amplitude and a vibration frequency of the turbine moving blade based on temporal variation of the distance between the contactless displacement sensor and the top position of the turbine moving blade as receiving the blade top position identification signal output from the blade top position identifying device.

Blade vibration measuring apparatus

A wind power generation systemof an embodiment includes a rotorhaving a huband blades, a nacellepivotally supporting the rotor, a towersupporting the nacelle, an airflow generation deviceprovided in a leading edge of each of the bladesand having a first electrodeand a second electrodewhich are separated via a dielectric, and a discharge power supplycapable of applying a voltage between the electrodes of the airflow generation device. Further, the system includes a measurement device detecting information related to at least one of output in the wind power generation system, torque in the rotorand a rotation speed of the blades, and a control unitcontrolling the discharge power supplybased on an output from the measurement device.

Wind power generation system and control method for the same

A wind power generation systemof an embodiment includes a rotorhaving blades, an airflow generation deviceprovided in a leading edge of each of the bladesand having a first electrodeand a second electrodewhich are separated via a dielectric, a discharge power supplyapplying a voltage between the electrodes of the airflow generation device, and a control unitcontrolling the discharge power supply. The control unitcontrols the voltage to perform pulse modulation so that the value of a relational expression fC/U is 0.1 or larger and 9 or smaller where f is a pulse modulation frequency of the voltage, C is a chord length of the blades, and U is a relative velocity combining a peripheral velocity of the bladesand a wind velocity, so as to generate plasma induced flow.

In one embodiment, a wind-power generating systemincludes: a lightning protecting device including a receptorprovided on a blade surface and a lightning conductorgrounding the receptor; an airflow generating deviceprovided on the blade surface and including first and second electrodesseparated via a dielectric; a discharge power sourceincluding switchesable to connect the first and second electrodesto output terminalsrespectively and a switchable to connect the first or second electrodeto a grounding conductor; and a thundercloud detecting device detecting information regarding thundercloud approach. When the information regarding the thundercloud approach is detected, the second electrodeis connected to the grounding conductorand the first and second electrodesare disconnected from the output terminals

Wind power generation system

This invention provides an optimum value search apparatus, method, recording medium, and computer program product used in designing, analyzing, or testing a device having a plurality of factors that have effects on a characteristic. In this method, an orthogonal array is generated by setting level values obtained from the initial values of the factors to the coordinates of a two-dimensional table including a matrix of the characteristics and the factors. From the characteristics on the orthogonal array, characteristic values obtained on the basis of combinations of the level values of the factors of a single characteristic are grasped. A combination having a most excellent characteristic value is selected. The level values of the factors in the characteristic corresponding to the selected combination are reset in the orthogonal array. After resetting, processes are repeatedly executed to search for an optimum value as a most excellent one of the characteristic values.

Optimum value search apparatus and method, recording medium, and computer program product

A row of moving blades for a steam turbine has moving blades elongated radially which are arranged peripherally around and secured to a turbine rotor. The row also has an intermediate support structure for holding the blades to each other at a radially intermediate position. The support structure has a shape of a streamline cross section. The support structure may include a tie wire secured to the blades, or lugs protruding from the blades and combined to each other. The support structure may include lugs protruding from the blades to each other, and a sleeve combining the lugs. The shape of a streamline cross section may have an obtuse-angle or acute-angle upstream part.

Steam turbine, and intermediate support structure for holding row of long moving blades therein

A turbine blade cascade structure includes a plurality of blades arranged in series in a circumferential direction on a wall surface, in which a corner portion defined by the wall surface and a front edge portion of each of blade bodies supported by the wall surface, to which a working fluid flows, includes a cover portion (fillet) that extends toward an upstream side of a flow of the working fluid. The turbine blade cascade structure is capable of reducing the secondary flow loss of the secondary flow in spite of the fluctuation of an incident angle of the working fluid flowing to the front edge portion of the blade body.

Turbine cascade structure

A steam valve in accordance with the present invention is the steam valve that houses a first valve devicecomposed of a valve seat, a valve body, a valve rod, and a driving device, and a second valve devicecomposed of the valve seat, the valve body, the valve rod, and the driving device, combined with each other in the valve casing, and a closing portionto block a part of a main steam flow flowing from outside to inside of a strainer is formed in the strainerthat is housed in the valve casingand that surrounds the valve bodyof the first valve device. According to the above described configuration, the steam valve that is aimed to further decrease a pressure loss can be provided by effectively controlling the steam flow in the strainer housed in the valve casing.

Steam valve

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Tokyo, Japan

Hisashi Matsuda