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103 条记录 (耗时 0.013 秒)

    FORMULATIONS AND METHOD OF USE OF PRESSURE SENSITIVE PAINT
    51.
    发明公开
    FORMULATIONS AND METHOD OF USE OF PRESSURE SENSITIVE PAINT 失效
    公式，使用方法压敏COLOR

    公开(公告)号：EP0830579A4

    公开(公告)日：1999-03-24

    申请号：EP96921361

    申请日：1996-06-06

    申请人： MC DONNELL DOUGLAS CORP

    发明人： SCHWAB SCOTT D ,  LEVY RAM L

    IPC分类号： G01L11/02 ,  G01M9/06 ,  G01M9/00 ,  G01L9/00

    CPC分类号： G01L11/02 ,  G01M9/06

    摘要： A pressure sensitive paint (24) is coated onto the surface (20) over which a pressure distribution is to be measured. A pressure sensitive paint is a mixture of a silanol-terminated polydimethylsiloxane and methyltriacetoxysilane, and a photoluminescent activeagent such as tris(4,7-diphenyl-1,10-phenanthroline) ruthenium (II) chloride pentahydrate. The binder and active agent are placed into an appropriate amount of a solvent for the binder and the active agent, such as dichloromethane, and applied to a surface (20). In testing of the surface, such as wind tunnel (22) testing, the active agent quantitatively luminesces responsive to the localexternal pressure at the surface.

    VERFAHREN UND WINDKANALWAAGE BEI AERODYNAMISCHEN MESSUNGEN AN FAHRZEUGEN
    52.
    发明公开
    VERFAHREN UND WINDKANALWAAGE BEI AERODYNAMISCHEN MESSUNGEN AN FAHRZEUGEN 失效
    方法与风洞秤气动测量操作车辆

    公开(公告)号：EP0842407A1

    公开(公告)日：1998-05-20

    申请号：EP96924818.0

    申请日：1996-06-29

    申请人： AUDI AG

    发明人： WIEDEMANN, Jochen

    IPC分类号： G01M9 ,  G01M17

    CPC分类号： G01M9/06

    摘要： The feature of the process of the invention for finding the forces and moments affecting a vehicle on its passage through a fluid (relative wind) is that the fan moment Mlü or the fan power Plü derived therefrom and to be included which is generated by the fan effect of a wheel rim (17) is also detected. It is thus possible to reach close correspondence between wind-tunnel tests and actual road tests. The process of the invention is preferably applied with 24-components scales and 'bridges' or 6-component scales.

    REMOTELY CONTROLLED METHODS AND SYSTEMS FOR ACTUATING BOUNDARY LAYER TRANSITION DEVICES IN A WIND TUNNEL MODEL
    56.
    发明公开
    REMOTELY CONTROLLED METHODS AND SYSTEMS FOR ACTUATING BOUNDARY LAYER TRANSITION DEVICES IN A WIND TUNNEL MODEL 审中-公开

    公开(公告)号：EP3382363A1

    公开(公告)日：2018-10-03

    申请号：EP18162867.8

    申请日：2018-03-20

    申请人： The Boeing Company

    发明人： CALKINS, Frederick T. ,  CLINGMAN, Dan J. ,  GRIFFITHS, Robert

    IPC分类号： G01M9/04

    CPC分类号： G01M9/02 ,  G01M9/04 ,  G01M9/06 ,  H02N2/02

    摘要： A system reproduces aerodynamic boundary layer transition conditions in a wind tunnel test environment under ambient to cryogenic temperature conditions. The system includes a test component disposed in the test environment that defines an exterior surface. A trip dot is mounted on the test component and has a first state, in which a distal surface of the trip dot is at a first elevation relative to the exterior surface of the test component, and a second state, in which the distal surface of the trip dot is at a second elevation relative to the exterior surface of the test component. An actuator is operably coupled to the trip dot and configured to transition the trip dot between first and second states. A controller remotely causes the actuator to transition the trip dot between the first and second states.

    FLUTTER DETECTION SENSOR
    60.
    发明公开
    FLUTTER DETECTION SENSOR 审中-公开
    FLUTTER检测传感器

    公开(公告)号：EP3228835A2

    公开(公告)日：2017-10-11

    申请号：EP17158485.7

    申请日：2017-02-28

    申请人： United Technologies Corporation

    发明人： PRINCE, Troy Shannon

    IPC分类号： F01D25/04

    CPC分类号： G01M9/06 ,  F01D17/08 ,  F01D25/04 ,  F04D29/665 ,  F05D2220/36 ,  F05D2260/96 ,  F05D2270/10 ,  F05D2270/3013 ,  F05D2270/334 ,  F05D2270/336 ,  G01M15/14

    摘要： Systems and methods for monitoring aerostructures are provided. In various embodiments, a method for monitoring an aerostructure may include: receiving a signal from a pressure sensor, the pressure sensor located downstream from the aerostructure; performing a time frequency analysis on the signal to calculate a power level over a range of frequencies; monitoring the power level over the range of frequencies; and determining a susceptibility to a flutter condition based on the monitoring the power level.

    摘要翻译： 提供了用于监测飞行结构的系统和方法。 在各种实施例中，用于监测航空结构的方法可以包括：从压力传感器接收信号，所述压力传感器位于航空结构的下游; 对该信号执行时间频率分析以计算一定频率范围内的功率电平; 监测整个频率范围内的功率水平; 以及基于监测功率水平来确定颤动条件的易感性。