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51.发明授权公开(公告)号：US11454566B2
公开(公告)日：2022-09-27
申请号：US16647432
申请日：2019-03-21
发明人： Dechuan Sun , Ming Lu
摘要： A parameter similarity method for test simulation conditions of an aerodynamic heating environment is disclosed. With respect to the requirement that the adiabatic wall enthalpy and the cold-wall heat flux are equal in the simulation test of the aerodynamic heating environment, a method that can ensure the similarity of ground test parameters and flight parameters without the equal adiabatic wall enthalpy is proposed, and solves the problems of relying on the equal adiabatic wall enthalpy and making it difficult to accurately simulate the real aerodynamic heating environment in the current test simulation method, and provides guarantee for heat transfer and ablation test research of thermal protection/insulation material under the high temperature aerodynamic heating environment. The test conditions are not affected by the value of the adiabatic wall enthalpy. According to the method, most test devices can simulate the aerodynamic heating environment with high enthalpy.
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公开(公告)号：US10890508B2
公开(公告)日：2021-01-12
申请号：US16338356
申请日：2017-08-28
发明人： Fuyou Xu , Donglei Zeng , Jing Yang
摘要： The invention provides a large-amplitude vertical-torsional coupled free vibration device, which belongs to the technical field of vertical-torsional coupled free vibration device for wind tunnel test. The gear blocks are consolidated at both ends of the beam. The screws, beam, and the gear blocks are fixed on the model, and they can fulfil the vertical-torsional coupled free vibration. The toothed plate is attached to the sliding block that iteratively moving along the vertical guide rail which is fixed to the ground. The vertical springs attached to the sliding blocks provide both vertical and torsional linear stiffness for the suspension vibration system. The springs only have vertical linear tensile deformations without any lateral tilt, which ensures the linear vertical and torsional stiffness of the model, and the lateral freedom is effectively restrained. This device can achieve the large-amplitude vertical-torsional coupled free vibration of the model, and the deficiency of the traditional device where springs are apparently tilted and the inefficacy of linear stiffness can be avoided. The lateral vibration is restrained, and it is applicable to large-amplitude vertical-torsional coupled free vibrations.
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公开(公告)号：US10825322B2
公开(公告)日：2020-11-03
申请号：US16654841
申请日：2019-10-16
申请人： THE BOEING COMPANY
摘要： A system for monitoring a model in a wind tunnel is provided. The system includes a plurality of sensors attached to a model in a wind tunnel. Each sensor of the plurality of sensors is configured to measure an attribute of the model. The system also includes a computing device in communication with the plurality of sensors. The computing device is programmed to receive a plurality of signals from the plurality of sensors, store a first threshold and a second threshold based on normalized alarm limits associated with at least one of the plurality of sensors, analyze the plurality of signals based, at least in part, on the first threshold and the second threshold, determine that a potentially negative condition is occurring based on the analysis, and alert a user to the potentially negative condition.
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公开(公告)号：US10591373B2
公开(公告)日：2020-03-17
申请号：US15449644
申请日：2017-03-03
发明人： Richard A. Meyer , Robert L. Josephson , Jason A. Christopherson , Todd Robert Osmundson , Nicholas Devon LaMoore , Riley August Rogotzke
摘要： In one aspect, a transducer body, includes a support including a pair of clevis halves; and a sensor body coupled to each of the clevis halves. The sensor body is disposed between the clevis halves and includes a generally rigid peripheral member disposed about a spaced-apart central hub, the central hub being joined to each of the clevis halves with the peripheral member spaced apart from each clevis half, where at least three flexure components couple the peripheral member to the central hub, and where the flexure components are spaced-apart from each other at generally equal angle intervals about the central hub. A biasing assembly connected between the support and the sensor body is configured to provide a bias force between the sensor body and the support.
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公开(公告)号：US20200051417A1
公开(公告)日：2020-02-13
申请号：US16654841
申请日：2019-10-16
申请人： THE BOEING COMPANY
摘要： A system for monitoring a model in a wind tunnel is provided. The system includes a plurality of sensors attached to a model in a wind tunnel. Each sensor of the plurality of sensors is configured to measure an attribute of the model. The system also includes a computing device in communication with the plurality of sensors. The computing device is programmed to receive a plurality of signals from the plurality of sensors, store a first threshold and a second threshold based on normalized alarm limits associated with at least one of the plurality of sensors, analyze the plurality of signals based, at least in part, on the first threshold and the second threshold, determine that a potentially negative condition is occurring based on the analysis, and alert a user to the potentially negative condition.
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公开(公告)号：US10429270B2
公开(公告)日：2019-10-01
申请号：US15433292
申请日：2017-02-15
申请人： Inclined Labs AB
发明人： Anton Westman , Peter Georen , Johan Stromberg
摘要： A wind tunnel for stable sustained human flight for research or recreation, including a tunnel including first and second portions having first and second central axes, respectively, and a fan to create an air flow in the test section. The second portion is a test section. The first and second central axes are arranged at a first angle with respect to each other. The second central axis is at a second angle of 5°-85° with respect to a horizontal plane. A safety system for an inclined wind tunnel for stable sustained human flight is provided, including an inclined test section of the wind tunnel that is arranged at an angle of 5°-85° with respect to a horizontal plane, a fan to create an air flow in the test section directed from an upstream end towards a downstream end thereof, and a delimiting arrangement arranged at the test section for preventing a person using the test section from leaving it.
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公开(公告)号：US20190184297A1
公开(公告)日：2019-06-20
申请号：US16284044
申请日：2019-02-25
发明人： Ruslan ROMANENKO , Alexandr PARMANIN , Aleksandr IVONINSKII , Svjatoslav LISIN , Ivan SAVCHENKO , Eugeny SHAROV
CPC分类号： A63G31/00 , A63G2031/005 , B64D23/00 , G01M9/02 , G01M9/04
摘要： A vertical wind tunnel skydiving simulator including a flight chamber entrance that has a curved air deflector that extends into a waiting chamber, in which a convex surface of the curved air deflector faces across or towards the flight chamber entrance or into the flight chamber, and extends into the waiting chamber a sufficient distance to substantially reduce the flow of turbulent air into the waiting chamber. The curved surface is at the top of the entrance and can also be at the sides. The shape the curved surface takes is sufficient to minimize the flow of turbulent air into the waiting chamber; the effect is to make it more comfortable and less noisy for people in the waiting area. This also helps to preserves the laminar, non-turbulent flow of air in the flying chamber, even across the flight chamber entrance. This makes flying more comfortable and predictable.
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58.发明申请公开(公告)号：US20180283983A1
公开(公告)日：2018-10-04
申请号：US15474714
申请日：2017-03-30
申请人： The Boeing Company
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.
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公开(公告)号：US09778135B1
公开(公告)日：2017-10-03
申请号：US14656531
申请日：2015-03-12
发明人： Brian C. Beckman , Gershon Parent
摘要： Mobile tunnels may be provided on trailers or in association with one or more other vehicles. A mobile tunnel may be towed or otherwise accelerated to a sufficient velocity, thereby causing a fluid such as air or seawater to travel above, below and around the tunnel. The fluid may be diverted into the tunnel and caused to pass over a test object such as an unmanned aerial vehicle or unmanned undersea vehicle within the tunnel, thereby enabling aerodynamic testing or hydrodynamic testing of the test object to be performed. Additionally, one or more materials may be injected into the fluid, thereby enabling destructive testing of the test object to be performed.
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公开(公告)号：US20110185803A1
公开(公告)日：2011-08-04
申请号：US13017495
申请日：2011-01-31
申请人： Robert Demajistre , Michael Grimm , Kevin Danahy
发明人： Robert Demajistre , Michael Grimm , Kevin Danahy
IPC分类号： G01M9/02
CPC分类号： B62J99/00
摘要： A bicycle fitting system includes a wind tunnel, a platform, a load cell, a bicycle rig, a plurality of actuators, and a processor. The platform is disposed within the wind tunnel and includes a rear roller, a front strut, and a rear strut. The load cell is coupled to the platform. The bicycle rig is coupled to the front and rear struts and includes a plurality of adjustment points, a rear wheel, a handle bar, and a seat, with the rear wheel friction coupled to the rear roller. Each adjustment point is associated with one of the actuators, and each actuator is operable to alter a configuration of the bicycle rig. The processor receives an output from the load cell and operates the actuators while a rider is riding the bicycle rig.
摘要翻译： 自行车配件系统包括风洞，平台，称重传感器，自行车架，多个致动器和处理器。 平台设置在风洞内，包括一个后轮，一个前支柱和一个后支柱。 称重传感器耦合到平台。 自行车装置联接到前支柱和后支柱，并且包括多个调节点，后轮，把手杆和座椅，后轮摩擦联接到后辊。 每个调节点与致动器中的一个相关联，并且每个致动器可操作以改变自行车钻机的构造。 处理器接收来自称重传感器的输出，并且在骑手骑自行车钻机时操作致动器。
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