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公开(公告)号:EP0663337A1
公开(公告)日:1995-07-19
申请号:EP95200109.7
申请日:1995-01-17
申请人: FOKKER AIRCRAFT B.V.
发明人: Kaptein, Dick
IPC分类号: B64C11/50
CPC分类号: G10K11/175 , B64C11/50
摘要: System (1) for reducing vibrations in the cabin of an air-craft driven by two or more propellers each having n blades, where n is an integer equal or larger than 2, of which the relative phase angle can be adjusted, said system comprising synchrophase means (2) for adjusting said relative phase angle such that a predetermined relative phase angle is maintained. The system furthermore comprises means (3) supplying information about the vibration level at one or more positions within the cabin or information related thereto and for generating a corresponding vibration level signal, and a control unit (4) which in response to said vibration level signal supplies an error signal to the synchrophase means (2) causing the synchrophase means to adjust the blades of the various propellers such that a new relative phase angle is maintained which differs m.(2π/n) radians, where m is an integer, from the previous relative phase angle. Each propeller comprises at least one recognising means (60, 61) attached to one of its propeller blades, the recognising means (60, 61) being detectable by a sensor (35, 36) in order to establish the absolute position of the various propeller blades.
摘要翻译: 一种用于减少由两个或更多个具有n个叶片的螺旋桨驱动的飞行器的机舱中的振动的系统(1),其中n是等于或大于2的整数,其中可以调节相对相位角,所述系统包括 同步酶装置(2)用于调节所述相对相位角,使得保持预定的相对相位角。 该系统还包括提供关于机舱内的一个或多个位置处的振动水平的信息或与其相关的信息的装置(3),以及用于产生相应的振动水平信号的装置(3),以及响应于所述振动水平信号 向同步酶装置(2)提供误差信号,使得同步酶装置调节各种螺旋桨的叶片,使得保持新的相对相位角,其不同于m(2π/ n)弧度,其中m是整数, 从前一个相对相位角。 每个螺旋桨包括至少一个附接到其螺旋桨叶片之一的识别装置(60,61),识别装置(60,61)可由传感器(35,36)检测,以便确定各种螺旋桨的绝对位置 刀片。
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公开(公告)号:EP0423902A1
公开(公告)日:1991-04-24
申请号:EP90202820.8
申请日:1990-10-19
申请人: Fokker Aircraft B.V.
发明人: Kaptein, Dick
CPC分类号: B64C11/50 , G10K11/175
摘要: System for reducing vibrations in the cabin of an aircraft driven by two or more propellers (12, 22) each having n blades (n being an integer equal or larger than 2) of which the relative phase angle can be adjusted, said system comprising synchrophase means (2) for adjusting said relative phase angle such that a predetermined relative phase angle is maintained. The system furthermore comprises means supplying information about the vibration level (3) at one or more positions within the cabin or thereto related information and for generating a thereto corresponding level signal, and a control unit (4) which in response to said level signal supplies an error signal to the synchrophase means causing the synchrophase means to adjust the blades of the various propellers such that a new relative phase angle is maintained which differs m.(2π/n) radians (m being an integer) from the previous relative phase angle.
摘要翻译: 用于减少由两个或更多个螺旋桨(12,22)驱动的飞机的驾驶舱中的振动的系统,每个螺旋桨(12,22)具有可以调节相对相位角的n个叶片(n等于或大于2的整数),所述系统包括同步酶 用于调节所述相对相位角以使得保持预定相对相位角的装置(2)。 该系统还包括在驾驶舱内的一个或多个位置或相关信息处提供关于振动水平(3)的信息并用于产生相应的电平信号的装置,以及响应于所述电平信号供给的控制单元(4) 对同步酶的误差信号意味着导致同步酶装置调节各种螺旋桨的叶片,使得保持新的相对相位角,其不同于前一相位相位的m(2π/ n)弧度(m为整数) 角度。
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公开(公告)号:EP0423902B1
公开(公告)日:1994-01-05
申请号:EP90202820.8
申请日:1990-10-19
申请人: Fokker Aircraft B.V.
发明人: Kaptein, Dick
CPC分类号: B64C11/50 , G10K11/175
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