GEOSTATIONARY HIGH ALTITUDE PLATFORM
    1.
    发明公开

    公开(公告)号:EP3359445A1

    公开(公告)日:2018-08-15

    申请号:EP16852948.5

    申请日:2016-10-07

    摘要: A geostationary platform is held afloat by a superpressure balloon. A suitable altitude is 25 km. The craft carries electrohydrodynamic thrusters, to overcome winds, held within a scaffold. Sensors determine position, velocity, acceleration and vector. A CPU performs instructions for station-keeping or navigation. A communication system is included to, inter alia, receive instructions from the ground. The craft carries a payload for observation and transmission, cradled in a temperature-controlled chamber. Power to the platform is transmitted in the form of electromagnetic waves (with suitable frequencies including microwaves of 2.45 GHz or 5.8 GHz) from a ground-based transmitter to a receiving antenna on, or affixed to, the balloon which converts the electromagnetic energy to direct current. A step-up voltage converter increases the voltage as required. A ground station monitors craft position and operational efficiency by radar to help ensure safe takeoff, operation, and landing of the craft.

    HONEYCOMB SANDWICH STRUCTURE, AND PRODUCTION METHOD THEREFOR
    2.
    发明公开
    HONEYCOMB SANDWICH STRUCTURE, AND PRODUCTION METHOD THEREFOR 审中-公开
    蜂窝夹心结构及其制造方法

    公开(公告)号:EP3188265A1

    公开(公告)日:2017-07-05

    申请号:EP15835030.6

    申请日:2015-08-20

    摘要: A honeycomb sandwich structure comprises a main body portion having a first skin material (1), a second skin material (2), and a honeycomb core (5) sandwiched between the first skin material (1) and the second skin material (2), and a thermoelectric conversion module (3) that generates power using a temperature difference between a high temperature side module front surface (3a) and a low temperature side module rear surface (3b). The thermoelectric conversion module (3) is embedded in a main body portion such that at least one of the module front surface (3a) and the module rear surface (3b) is in a state being exposed from the main body portion, and as a result, a temperature difference is generated between the module front surface and the module rear surface.

    摘要翻译: 蜂窝夹层结构包括具有第一表皮材料(1),第二表皮材料(2)和夹在第一表皮材料(1)和第二表皮材料(2)之间的蜂窝芯(5)的主体部分, 以及利用高温侧模块前表面(3a)和低温侧模块后表面(3b)之间的温度差产生功率的热电转换模块(3)。 热电转换模块(3)嵌入主体部分中,使得模块前表面(3a)和模块后表面(3b)中的至少一个处于从主体部分暴露的状态,并且作为 结果,模块前表面和模块后表面之间产生温差。

    System and method for reducing mechanical disturbances from energy storage flywheels
    5.
    发明公开
    System and method for reducing mechanical disturbances from energy storage flywheels 失效
    Verfahren und System zur Verringerung von mechanischen Energiespeicher-Schwungrädern

    公开(公告)号:EP1391384A1

    公开(公告)日:2004-02-25

    申请号:EP03022224.4

    申请日:1997-11-27

    IPC分类号: B64G1/28 B64G1/42

    摘要: A method and a system for reducing mechanical disturbances from energy storage flywheels (32) in an electrically-powered vehicle are provided. The system includes at least two counter-rotating energy storage flywheels (32) arranged on the vehicle; vehicle dynamics, control, and sensors for sensing a disturbance to the vehicle and providing an output indicative of the disturbance. The system also provides for adjustably controlling an attitude of the vehicle in response to the output of the sensors and to counteract disturbances resulting from the at least two counter-rotating energy storage flywheels (32). A method for reducing mechanical disturbances from energy storage flywheels arranged in an electrically powered vehicle is also provided. The method has the steps of: sensing a torque on the vehicle to provide a torque measurement; processing the torque measurement to produce a control signal based upon the sensed torque; and modifying a relative speed or orientation of the energy storage flywheels by using the control signal to reduce a net torque produced by the flywheels. A flywheel-powered electric vehicle system is also provided. The system includes an electrical power subsystem arranged on a vehicle structure; a pair of counter-rotating energy storage flywheels (32) mounted to a flywheel mounting plate, the pair of flywheels connected to the electrical power subsystem. Torque sensors are arranged between the flywheel mounting plate and the vehicle structure for sensing a net torque on the vehicle resulting from the pair of flywheels and generating a torque signal indicative thereof. A vehicle attitude sensor is arranged on the vehicle structure to produce an attitude signal. A vehicle attitude actuator and electronic processing equipment are arranged on the vehicle structure and connected to the pair of counter-rotating energy storage flywheels (32), the torque sensors, the vehicle attitude sensor, the vehicle attitude actuator, and the electrical power subsystem. The electronic processing equipment processes the attitude signal and the torque signal to provide a control signal to the vehicle attitude actuator for reducing the net torque on the vehicle.

    摘要翻译: 提供了一种用于减少电动车辆中的储能飞轮(32)的机械扰动的方法和系统。 该系统包括布置在车辆上的至少两个反向旋转储能飞轮(32); 车辆动力学,控制和传感器,用于感测对车辆的干扰并提供指示干扰的输出。 该系统还提供响应于传感器的输出可调节地控制车辆的姿态并且抵消由至少两个反向旋转储能飞轮(32)产生的干扰。 还提供了一种用于减少布置在电动车辆中的储能飞轮的机械扰动的方法。 该方法具有以下步骤:感测车辆上的扭矩以提供扭矩测量; 处理扭矩测量以基于感测的扭矩产生控制信号; 以及通过使用所述控制信号来修改所述储能飞轮的相对速度或取向以减小由所述飞轮产生的净转矩。 还提供飞轮动力电动车系统。 该系统包括布置在车辆结构上的电力子系统; 安装在飞轮安装板上的一对反向旋转储能飞轮(32),该对飞轮连接到电力子系统。 扭矩传感器布置在飞轮安装板和车辆结构之间,用于感测由一对飞轮产生的车辆上的净扭矩并产生指示其的扭矩信号。 车辆姿态传感器布置在车辆结构上以产生姿态信号。 车辆姿态执行器和电子处理设备布置在车辆结构上并连接到一对反向旋转储能飞轮(32),扭矩传感器,车辆姿态传感器,车辆姿态致动器和电力子系统。 电子处理设备处理姿态信号和转矩信号,以向车辆姿态致动器提供控制信号,以减少车辆上的净转矩。

    A MICROWAVE ELECTROTHERMAL THRUSTER ADAPTED FOR IN-SPACE ELECTROTHERMAL PROPULSION

    公开(公告)号:EP3377407A1

    公开(公告)日:2018-09-26

    申请号:EP16865900.1

    申请日:2016-11-17

    申请人: JSW Steel Limited

    IPC分类号: B64G1/40 B64G1/42 F03H1/00

    摘要: The present invention relates to a Microwave Electrothermal Thruster(MET) adapted for in-space electrothermal propulsion comprising a tunable frequency Microwave Electrothermal Thruster propulsion module enabling primary propulsion and altitude control of a satellite/spacecraft wherein RF Semiconductors is introduced for the first time as microwave generator inside cavity body to increase its efficiency and respond time and to make the thruster capable of operating in two frequencies by mechanically tuning its cavity making such thruster compact and light weight. The free-floating plasma within the resonant cavity couples the incident electrical power directly to the tangentially injected propellant gas. The plasma forms by focusing the microwave energy into the first transverse magnetic mode and operates independent of the type of propellant gas used. Also, for the first time, Shape Memory Alloy is introduced into the thruster cavity to enable faster and effective tuning of the resonant cavity diameter, when switching between two operational frequencies.