-
公开(公告)号：US07925392B2
公开(公告)日：2011-04-12
申请号：US12099461
申请日：2008-04-08
申请人： Russell E. Altieri , James F. Kuhn , Mark R. Jolly , Steve C. Southward , Askari Badre-Alam , Leslie P. Fowler , Matthew Ferguson
发明人： Russell E. Altieri , James F. Kuhn , Mark R. Jolly , Steve C. Southward , Askari Badre-Alam , Leslie P. Fowler , Matthew Ferguson
CPC分类号： B64C29/005 , B64F5/60 , G01B7/31
摘要： Methods and systems for monitoring rotating shaft shafts and couplings in an aircraft propulsion system is described. The measurement system/method provides for accurate and precise monitoring of a rotating shaft flexible coupling in a fixed wing aircraft vehicle propulsion system. The measuring system/method provides for a high reliability short take off vertical landing fixed wing aircraft in which the vertical propulsion dynamically rotating drive shaft system and couplings are monitored in real time. The vehicular shaft coupling misalignment measuring system utilizes multiple positional sensors to provide highly reliable and precise determination of the dynamic characteristics of the rotating sensor target components of the propulsion system drive shaft. The relative position of the sensors is rigidly fixed externally from the rotating targets with a structural frame. The collar misalignment measuring system of the invention provide a misalignment measurement of the propulsion system drive shaft flexible coupling which relates to a critical performance of rotating shaft coupling in the operation of an aircraft vehicle. The method/system provides for monitoring a rotating drive shaft system and dynamically measuring a rotating drive shaft coupling in a fixed wing aircraft propulsion system.
摘要翻译： 描述了用于监测飞行器推进系统中的旋转轴轴和联轴器的方法和系统。 测量系统/方法可以精确和精确地监测固定翼飞机车辆推进系统中的旋转轴柔性联轴器。 测量系统/方法提供了一种高可靠性的短距离垂直着陆固定翼飞机，其中垂直推进动态旋转驱动轴系统和联轴器被实时监控。 车轴联轴器未对准测量系统利用多个位置传感器来提供对推进系统驱动轴的旋转传感器目标部件的动态特性的高度可靠和精确的确定。 传感器的相对位置通过结构框架从旋转目标的外部刚性固定。 本发明的套环未对准测量系统提供了推进系统驱动轴柔性联轴器的不对准测量，其涉及在飞行器车辆的操作中的旋转轴联轴器的关键性能。 该方法/系统提供用于监视旋转驱动轴系统并动态地测量固定翼飞机推进系统中的旋转驱动轴联轴器。
-
公开(公告)号：US06954685B2
公开(公告)日：2005-10-11
申请号：US10421325
申请日：2003-04-23
申请人： Russell E. Altieri , James F. Kuhn , Mark R. Jolly , Steve C. Southward , Askari Badre-Alam , Leslie P. Fowler
发明人： Russell E. Altieri , James F. Kuhn , Mark R. Jolly , Steve C. Southward , Askari Badre-Alam , Leslie P. Fowler
CPC分类号： G01B7/31 , B64C29/005 , B64F5/60
摘要： Methods and systems for monitoring rotating shaft shafts and couplings in an aircraft propulsion system is described. The measurement system/method provides for accurate and precise monitoring of a rotating shaft flexible coupling in a fixed wing aircraft vehicle propulsion system. The measuring system/method provides for a high reliability short take off vertical landing fixed wing aircraft in which the vertical propulsion dynamically rotating drive shaft system and couplings are monitored in real time. The vehicular shaft coupling misalignment measuring system utilizes multiple positional sensors to provide highly reliable and precise determination of the dynamic characteristics of the rotating sensor target components of the propulsion system drive shaft. The relative position of the sensors is rigidly fixed externally from the rotating targets with a structural frame. The collar misalignment measuring system of the invention provide a misalignment measurement of the propulsion system drive shaft flexible coupling which relates to a critical performance of rotating shaft coupling in the operation of an aircraft vehicle. The method/system provides for monitoring a rotating drive shaft system and dynamically measuring a rotating drive shaft coupling in a fixed wing aircraft propulsion system.
摘要翻译： 描述了用于监测飞行器推进系统中的旋转轴轴和联轴器的方法和系统。 测量系统/方法可以精确和精确地监测固定翼飞机车辆推进系统中的旋转轴柔性联轴器。 测量系统/方法提供了一种高可靠性的短距离垂直着陆固定翼飞机，其中垂直推进动态旋转驱动轴系统和联轴器被实时监控。 车轴联轴器未对准测量系统利用多个位置传感器来提供对推进系统驱动轴的旋转传感器目标部件的动态特性的高度可靠和精确的确定。 传感器的相对位置通过结构框架从旋转目标的外部刚性固定。 本发明的套环未对准测量系统提供了推进系统驱动轴柔性联轴器的不对准测量，其涉及在飞行器车辆的操作中的旋转轴联轴器的关键性能。 该方法/系统提供用于监视旋转驱动轴系统并动态地测量固定翼飞机推进系统中的旋转驱动轴联轴器。
-
公开(公告)号：US5619581A
公开(公告)日：1997-04-08
申请号：US245717
申请日：1994-05-18
IPC分类号： G10K11/178 , A61F11/06 , H03B29/00
CPC分类号： G10K11/1786 , G10K2210/3031 , G10K2210/3032 , G10K2210/3033 , G10K2210/3042 , G10K2210/3043 , G10K2210/3046 , G10K2210/3214
摘要： An active noise and vibration control system (20) for cancellation of noise or vibration. The system (20) provides a system whereby the adaptation path and feedforward path are implemented in separate hardware. As a result, the computational burden on the digital signal processor (DSP) (28) is reduced allowing the DSP (28) to handle multiple inputs (22), error sensors (34), and transducers (32). In one embodiment, the processing of the input signal from sensor (22) takes place in a waveform generator (24) comprising a phase-locked loop, a frequency divider, a shift register, and at least one switched capacitor filter. In another embodiment the input signal processing takes place in separate feedforward circuitry including a field programmable gate array (64).
摘要翻译： 一种主动噪声和振动控制系统（20），用于消除噪音或振动。 系统（20）提供了一种系统，其中适应路径和前馈路径在单独的硬件中实现。 结果，数字信号处理器（DSP）（28）的计算负担被减小，允许DSP（28）处理多个输入（22），误差传感器（34）和换能器（32）。 在一个实施例中，来自传感器（22）的输入信号的处理发生在包括锁相环，分频器，移位寄存器和至少一个开关电容滤波器的波形发生器（24）中。 在另一个实施例中，输入信号处理发生在包括现场可编程门阵列（64）的单独的前馈电路中。
-
公开(公告)号：US20110204882A1
公开(公告)日：2011-08-25
申请号：US13083647
申请日：2011-04-11
申请人： Russell E. Altieri , James F. Kuhn , Mark R. Jolly , Steve C. Southward , Askari Badre-Alam , Leslie P. Fowler , Matthew Ferguson
发明人： Russell E. Altieri , James F. Kuhn , Mark R. Jolly , Steve C. Southward , Askari Badre-Alam , Leslie P. Fowler , Matthew Ferguson
IPC分类号： G01R33/06
CPC分类号： B64C29/005 , B64F5/60 , G01B7/31
摘要： Methods/systems for monitoring an aircraft propulsion system is described. The measurement system/method provides for accurate and precise monitoring of rotating members in an aircraft vehicle propulsion system. The measuring system/method provides for a high reliability aircraft in which the propulsion dynamically rotating drive shaft system and couplings are monitored in real time. The vehicular measuring system utilizes multiple positional sensors to provide highly reliable and precise determination of the dynamic characteristics of the rotating sensor target components of the aircraft system. The relative position of the sensors is rigidly fixed externally from the rotating targets with a structural frame. The measuring system provides a misalignment measurement of the propulsion system drive shaft flexible coupling which relates to a critical performance of rotating shaft coupling in the operation of an aircraft vehicle. The method/system provides for monitoring a rotating drive shaft system and dynamically measuring a rotating drive shaft coupling in an aircraft.
摘要翻译： 描述了用于监视飞行器推进系统的方法/系统。 测量系统/方法提供对飞行器车辆推进系统中的旋转构件的准确和精确的监测。 测量系统/方法提供了一种高可靠性飞机，其中推进动态旋转驱动轴系统和联轴器被实时监控。 车辆测量系统利用多个位置传感器来提供对航空器系统的旋转传感器目标部件的动态特性的高度可靠和精确的确定。 传感器的相对位置通过结构框架从旋转目标的外部刚性固定。 测量系统提供推进系统驱动轴柔性联轴器的不对中测量，其涉及在飞行器车辆的操作中旋转轴联轴器的关键性能。 该方法/系统提供用于监测旋转驱动轴系统并动态地测量飞行器中的旋转驱动轴联轴器。
-
公开(公告)号：US07093504B2
公开(公告)日：2006-08-22
申请号：US10928340
申请日：2004-08-27
申请人： Steve C. Southward
发明人： Steve C. Southward
IPC分类号： G01L3/00
摘要： The invention provides a method/system for measuring torque. The method/system includes providing a first rotating disk having a target pattern and providing a second rotating disk having a target pattern. The method/system includes providing a first set of at least three sensors, comprised of a first disk first sensor, a first disk second sensor, and a first disk third sensor, the first set of at least three sensors for sensing the first rotating disk target pattern with the first set of at least three sensors fixed around and encompassing the first rotating disk. The method/system includes providing a second set of at least three sensors, comprised of a second disk first sensor, a second disk second sensor, and a second disk third sensor, the second set of at least three sensors for sensing the second rotating disk target pattern, with the second set of at least three sensors fixed around and encompassing the second rotating disk. The method/system includes measuring an apparent twist of the first rotating disk relative to the second rotating disk with the first set of at least three sensors and the second set of at least three sensors, and determining an actual twist angle from the measured apparent twist.
摘要翻译： 本发明提供了一种用于测量扭矩的方法/系统。 该方法/系统包括提供具有目标图案的第一旋转盘并提供具有目标图案的第二旋转盘。 该方法/系统包括提供包括第一盘第一传感器，第一盘第二传感器和第一盘第三传感器的至少三个传感器的第一组，第一组至少三个传感器，用于感测第一旋转盘 目标图案，其中第一组至少三个传感器固定在第一旋转盘周围并且包围第一旋转盘。 所述方法/系统包括提供由第二盘第一传感器，第二盘第二传感器和第二盘第三传感器组成的至少三个传感器的第二组，所述第二组至少三个传感器用于感测第二旋转盘 目标图案，其中第二组至少三个传感器固定在第二旋转盘周围并且包围第二旋转盘。 该方法/系统包括利用第一组至少三个传感器和第二组至少三个传感器来测量第一旋转盘相对于第二旋转盘的表观扭曲，并且从测量的表观扭曲确定实际扭转角 。
-
公开(公告)号：US5710822A
公开(公告)日：1998-01-20
申请号：US553186
申请日：1995-11-07
IPC分类号： G10K11/178 , G10K11/16
CPC分类号： G10K11/1784 , G10K2210/117 , G10K2210/3028 , G10K2210/3039 , G10K2210/3049
摘要： An active adaptive control system and method has frequency dependent filtering with a transfer characteristic which is a function of a frequency dependent shaped power limitation characteristic maximizing usage of available output transducer authority. Band separation is provided for different tones. Power limit partitioning is provided for effectively distributing power between correction tones to maximize model performance.
摘要翻译： 主动自适应控制系统和方法具有频率相关滤波，其具有传递特性，其是频率依赖的形状功率限制特性的函数，其最大化可用输出传感器权威的使用。 为不同的音调提供频带分离。 提供功率限制分区，用于在校正音之间有效分配功率，以最大限度地提高模型性能。
-
公开(公告)号：US6049746A
公开(公告)日：2000-04-11
申请号：US53441
申请日：1998-04-01
IPC分类号： B60G17/018 , F16F9/48 , F16F9/56 , F16F9/58 , B60G17/00
CPC分类号： B60G17/018 , F16F9/48 , F16F9/56 , F16F9/58 , B60G2202/413 , B60G2204/45 , B60G2400/202 , B60G2400/252 , B60G2600/02 , F16F2230/007
摘要： A method for controlling end stop collisions in electro-mechanical systems including dampers or actuators. In a first aspect, a velocity-squared control method determines an end stop control signal (V.sub.end stop) based, at least in part, upon a square of the relative velocity (V.sub.inst). Preferably, the displacement (.delta..sub.end) to the end stop is also used to derive the end stop control signal (V.sub.end stop). In another aspect, a snubber control method is employed which produces a snubber control signal (V.sub.snub) based, at least in part, upon a continuous function of a snubber incursion distance (.delta..sub.z) within a snubber zone (Z). Preferably, the velocity-squared end stop and the snubber control methods operate together. When used in conjunction with an end stop control method, the snubber control method prevents end stop collisions for cases where the end stop control algorithm alone would not. Either of the end stop methods (the velocity-squared end stop control method or the snubber control method) may be used alone, in combination with each other, or in combination with a primary control method.
摘要翻译： 一种用于控制机电系统中的止挡碰撞的方法，包括阻尼器或致动器。 在第一方面，速度平方控制方法至少部分地基于相对速度（Vinst）的平方来确定终止停止控制信号（Vend Stop）。 优选地，到端部止动器的位移（δ端）也用于导出终止停止控制信号（Vend Stop）。 在另一方面，采用缓冲器控制方法，其至少部分地基于缓冲区（Z）内的缓冲器入侵距离（δz）的连续函数产生缓冲控制信号（Vsnub）。 优选地，速度平方终止点和缓冲器控制方法一起工作。 当与终止控制方法结合使用时，缓冲器控制方法在单独停止结束控制算法的情况下可以防止终止停止冲突。 可以单独使用终止方法（速度平方终止控制方法或缓冲控制方法）中的任一种，或者与主要控制方法组合使用。
-
8.发明授权Active structural control system and method including active vibration absorbers (AVAS) 失效主动结构控制系统和方法包括主动减振器（AVAS）
公开(公告)号：US6002778A
公开(公告)日：1999-12-14
申请号：US693742
申请日：1996-08-07
IPC分类号： G10K11/178 , A61F11/06
CPC分类号： G10K11/1786 , G10K2210/121 , G10K2210/1281 , G10K2210/129 , G10K2210/3026 , G10K2210/3027 , G10K2210/3051 , G10K2210/3211 , G10K2210/501
摘要： An Active Structural Control (ASC) system (10) and method which includes a plurality of Active Vibration Absorbers (AVAs) (40) attached to a yoke (32) included within a pylon structure (28) preferably comprising a spar (38) and a yoke (32) which is located intermediate between an aircraft fuselage (20) and an aircraft engine (18) for controlling acoustic noise and/or vibration generated within the aircraft's cabin (44) due to unbalances in the aircraft engine (18). The ASC system (10) includes a plurality of error sensors (42) for providing error signals, and at least one reference sensor (49 or 50) for providing reference signals indicative of the N1 and/or N2 engine rotations and/or vibrations, and a preferably digital electronic controller (46) for processing the error and reference signal information to provide output signals to drive the plurality of AVAs (40) attached to the yoke (32). The AVAs (40) preferably act in a radial, tangential, or fore and aft directions and may be preferably located at the terminal end and/or at the base portion of the yoke (32). Further, the AVAs (40) may be Single Degree Of Freedom (SDOF) or Multiple Degree Of Freedom (MDOF) and may be tuned to have a passive resonance which substantially coincides with the N1 and/or N2 engine rotation and/or vibrations. In another aspect, reference signal processing is described which includes a modulo counter, a lookup table, and a digital IO.
摘要翻译： 一种主动结构控制（ASC）系统（10）和方法，其包括附接到包括在塔架结构（28）内的轭架（32）的多个主动减振器（AVAs）（40），优选地包括翼梁（38）和 位于飞行器机身（20）和飞机发动机（18）之间的轭架（32），用于控制由于飞行器发动机（18）中的不平衡而在飞机机舱（44）内产生的声音噪声和/或振动。 ASC系统（10）包括用于提供误差信号的多个误差传感器（42）和用于提供指示N1和/或N2发动机转动和/或振动的参考信号的至少一个参考传感器（49或50） 以及用于处理误差和参考信号信息以提供输出信号以驱动附接到磁轭（32）的多个AVA（40）的优选数字电子控制器（46）。 AVA（40）优选地以径向，切向或前后方向作用，并且可以优选地位于轭架（32）的终端和/或基座部分处。 此外，AVA（40）可以是单自由度（SDOF）或多自由度（MDOF），并且可以被调谐为具有与N1和/或N2发动机旋转和/或振动基本一致的无源共振。 在另一方面，描述了包括模计数器，查找表和数字IO的参考信号处理。
-
9.发明授权
公开(公告)号：US5754662A
公开(公告)日：1998-05-19
申请号：US347521
申请日：1994-11-30
IPC分类号： G10K11/178 , H03B29/00 , A61F11/06
CPC分类号： G10K11/1786 , G10K2210/128 , G10K2210/3027 , G10K2210/3028 , G10K2210/3046 , G10K2210/509 , G10K2210/51 , G10K2210/512
摘要： Actuators for active vibrational energy control systems which are frequency focused. The high-frequency cancellation function is decoupled from the low-frequency cancellation function to enable the size, force, number and placement of the actuators to be optimized. A hybrid system employing structural actuators to cancel low-frequency vibrations and speakers to cancel higher-frequency vibrations is also taught.
摘要翻译： 主动振动能量控制系统的执行器是频率集中的。 高频消除功能与低频消除功能解耦，使得执行器的尺寸，力，数量和布局得以优化。 还教授了采用结构致动器来消除低频振动和扬声器以消除更高频率振动的混合系统。
-
公开(公告)号：US5627896A
公开(公告)日：1997-05-06
申请号：US260660
申请日：1994-06-18
IPC分类号： G05D19/02 , G10K11/178 , G10K11/16
CPC分类号： G10K11/178 , G05D19/02 , G10K2210/3012 , G10K2210/3039 , G10K2210/503
摘要： An active system for controlling vibration or sound. The system includes a method for limiting the output gain G from a gradient descent algorithm, such as an LMS algorithm, according to the relationship ##EQU1## and reducing one of first and second filter weights W.sub.1 and W.sub.0 such that G.ltoreq.G.sub.max ensuring the output canceling signal is never saturated. This eliminates the square wave shape which may impart unwanted harmonics or resonances to the dynamic system. In another aspect, the system eliminates drift of the output devices toward saturation when situations are encountered such as singularities in the quadratic performance surface. This is accomplished by applying leakage factor r(k) to a function f(k) at or near a predetermined limit to avoid saturation of the output device. The function f(k) can be the gain G or the weights W(k). Another aspect is to provide a constant, optimum, and stable adaptation rate in an LMS system by providing an optimum adaptation coefficient .mu..sub.opt that provides a constant, uniform, and optimum adaptation rate on a per period basis for all frequencies. Various combinations of the above are described and are useful in active control systems.
摘要翻译： 用于控制振动或声音的主动系统。 该系统包括根据关系的梯度下降算法（例如LMS算法）来限制输出增益G的方法！ 并且减少第一和第二滤波器权重W1和W0中的一个，使得确保输出消除信号的G max绝对不会饱和。 这消除了可能给动态系统带来不需要的谐波或谐振的方波形状。 在另一方面，当遇到诸如二次性能表面中的奇异点的情况时，系统消除输出装置朝向饱和的漂移。 这是通过在等于或接近预定极限的函数f（k）应用泄漏因子r（k）来实现的，以避免输出装置的饱和。 函数f（k）可以是增益G或权重W（k）。 另一方面是通过提供在每个周期基础上为所有频率提供恒定，均匀和最佳适应速率的最佳适配系数mu opt，在LMS系统中提供恒定的，最佳的和稳定的适应速率。 描述上述各种组合，并且在主动控制系统中是有用的。
-
-
-
-
-
-
-
-
-
搜索结果
17 条记录 (耗时 0.017 秒)
