公开(公告)号：US20140271201A1

公开(公告)日：2014-09-18

申请号：US14038154

申请日：2013-09-26

Applicant: BELL HELICOPTER TEXTRON INC.

Inventor： Charles Eric Covington ,  Carlos A. Fenny

IPC: B64C27/32

CPC classification number: B64C27/64 ,  B64C27/605 ,  H01F7/066 ,  H01F7/122 ,  H02K7/003

Abstract: According to one embodiment, a linear control motor includes a first permanent magnet, a coil, a first magnetic material, a shaft, and a first non-magnetic material. The first non-magnetic material is disposed between at least one of the movable components and at least one of the static components and operable to prevent physical contact between at least one of the movable components and at least one of the static components.

Abstract translation: 根据一个实施例，线性控制电动机包括第一永磁体，线圈，第一磁性材料，轴和第一非磁性材料。 第一非磁性材料设置在至少一个可移动部件和至少一个静态部件之间，并可操作以防止至少一个可移动部件与至少一个静态部件之间的物理接触。

公开(公告)号：US20130221153A1

公开(公告)日：2013-08-29

申请号：US13767188

申请日：2013-02-14

Applicant: BELL HELICOPTER TEXTRON INC.

Inventor： Robert Earl Worsham, II ,  John Joseph Schillings ,  Charles Eric Covington

IPC: B64C27/00

CPC classification number: B64C27/57 ,  B64C27/006 ,  B64C27/04 ,  B64C27/32 ,  B64C27/605 ,  G05D1/0858 ,  G05D1/105

Abstract: The system is configured for automation of rotorcraft entry into autorotation. The system can provide a means to assist the flight crew of a rotorcraft in maintaining rotor speed following loss of engine power. The system can automatically adjust control positions, actuator positions or both to prevent excessive loss of rotor speed upon initial loss of engine power before the flight crew is able to react. The system uses model matching to provide axis decoupling and yaw anticipation; it includes pitch control initially to assist in preventing rotor deceleration; and it makes use of collective, pitch, roll and yaw trim functions to provide tactile cueing to the pilot to assist when the pilot is in the loop. The system can reduce workload by assisting the crew with controlling rotor speed and forward speed during stabilized autorotation.

Abstract translation: 该系统被配置为使旋翼飞机进入自动调节的自动化。 该系统可以提供一种手段来帮助旋翼航空器的飞行机组在发动机功率损失后维持转子速度。 系统可以自动调整控制位置，执行器位置或两者，以防止在飞行机组人员能够作出反应之前最初发动机功率损失时转子转速过大。 该系统使用模型匹配来提供轴解耦和偏航预测; 它首先包括俯仰控制，以帮助防止转子减速; 并且它使用集体，俯仰，滚动和偏航调整功能来向飞行员提供触觉提示，以在飞行员处于循环中时进行协助。 该系统可以通过协助船员控制转子转速和稳定自转过程中的前进速度来减少工作量。

公开(公告)号：US20130184959A1

公开(公告)日：2013-07-18

申请号：US13722005

申请日：2012-12-20

Applicant: BELL HELICOPTER TEXTRON INC.

Inventor： Joseph W. Wendelsdorf ,  Keith Hale ,  Walter West Riley ,  Charles Eric Covington ,  Brian E. Tucker

IPC: G06F17/00

CPC classification number: G06F17/00 ,  B64C27/04 ,  G01M5/0016 ,  G01M13/02

Abstract: A method of optimizing an operation of a rotorcraft includes measuring actual usage of the tail rotor drive shaft during operation of the rotorcraft, the actual usage including at least a torque measurement. The method further includes a step of adjusting a life of the tail rotor drive shaft based upon the measuring of the actual usage. Another method of the present disclosure includes determining a main rotor mast torque by measuring a tail rotor drive shaft torque and deriving a main rotor mast torque by considering the measured tail rotor drive shaft torque and a total torque output of an engine. A system of the present disclosure is configured for determining the main rotor mast torque in part by measuring the tail rotor torque.

Abstract translation: 一种优化旋翼航空器操作的方法包括测量旋翼航空器操作期间尾部转子驱动轴的实际使用，实际使用至少包括扭矩测量。 该方法还包括基于实际使用量的测量来调整尾部转子驱动轴的寿命的步骤。 本公开的另一种方法包括通过考虑尾部转子驱动轴扭矩和发动机的总扭矩输出来测量尾部转子驱动轴转矩并导出主转子桅杆扭矩来确定主转子桅杆扭矩。 本公开的系统被配置为部分地通过测量尾转子扭矩来确定主转子桅杆扭矩。