CN103448902A - 一种下单翼飞机的应急断离结构的内襟翼支臂梁及应用 - Google Patents

一种下单翼飞机的应急断离结构的内襟翼支臂梁及应用 Download PDF

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CN103448902A
CN103448902A CN201210170328.9A CN201210170328A CN103448902A CN 103448902 A CN103448902 A CN 103448902A CN 201210170328 A CN201210170328 A CN 201210170328A CN 103448902 A CN103448902 A CN 103448902A
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wing
low
support arm
arm beam
emergent
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崔金玲
姚雄华
李东
周晓春
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Xian Aircraft Design and Research Institute of AVIC
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Xian Aircraft Design and Research Institute of AVIC
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Abstract

一种下单翼飞机的应急断离结构的内襟翼支臂梁及应用,涉及下单翼飞机的应急断离结构的梁技术领域,本发明通过披露一种分体式的下单翼飞机内襟翼支臂梁,解决了下单翼飞机应急着陆时,内襟翼遇冲击载荷作用时,内襟翼能够与机翼翼盒尽快分离,并且避免内襟翼与机翼翼盒连接的支臂梁对机翼翼盒产生的穿透或撕裂的安全隐患,拓展了内襟翼支臂梁应急断离的应用范围。

Description

一种下单翼飞机的应急断离结构的内襟翼支臂梁及应用
技术领域
本发明涉及下单翼飞机的应急断离结构的梁技术领域。
背景技术
按飞机机翼相对于机身的上下不同的位置,将飞机为中单翼飞机、上单翼飞机和下单翼飞机。因此,下单翼飞机的机翼距离地面最近。下单翼飞机的内襟翼位于机翼后缘,通过支臂梁与作储油用的机翼翼盒连接,当下单翼飞机在起落架未能顺利打开而作应急着陆时,内襟翼会首先与地面的凸出物体发生撞击,此时要求内襟翼必须尽快与机翼翼盒完全分离,否则与机翼翼盒相连的支臂梁易穿透或撕裂机翼翼盒,导致翼盒内所储燃油泄漏从而引发火灾。在现有的下单翼飞机中,其内襟翼支臂梁结构如图1所示,为两端窄、中间宽的带有加强筋的梁结构,该梁的一端上侧面1与机翼翼盒后梁连接,另一端设置耳片2,由耳片2通过摇臂与内襟翼相连。该结构形式很难使内襟翼与机翼翼盒在飞机应急着陆,内襟翼遇冲击载荷作用时,内襟翼能够与机翼翼盒尽快分离;并且即使在耳片2处断开导致内襟翼与机翼翼盒的分离,由于支臂梁下端耳片2处仍离地面很近,无法避免支臂梁对机翼翼盒的穿透或撕裂。
发明内容
本发明的目的是:为了满足下单翼飞机应急着陆时,内襟翼遇冲击载荷作用时,内襟翼能够与机翼翼盒尽快分离,并且避免内襟翼与机翼翼盒连接的支臂梁对机翼翼盒产生的穿透或撕裂的安全隐患,特披露一种应急断离结构的内襟翼支臂梁。
本发明的技术方案是:本发明的应急断离结构的内襟翼支臂梁,如图2所示,将现有技术方案中的支臂梁自与机翼翼盒后梁连接的底部开始截为支臂梁的上部3和支臂梁的下部4,且支臂梁的上部3和支臂梁的下部4通过安全螺栓5和螺母6连接。本发明的内襟翼支臂梁不仅可用于剪切的应急断离领域,还可应用于拉伸的应急断离领域以及拉伸与剪切复合的应急断离领域。
本发明具有以下优点:通过上述技术方案的实施,解决了下单翼飞机应急着陆时,内襟翼遇冲击载荷作用时,内襟翼能够与机翼翼盒尽快分离,并且避免内襟翼与机翼翼盒连接的支臂梁对机翼翼盒产生的穿透或撕裂的安全隐患,拓展了内襟翼支臂梁的应用范围。
附图说明
图1是现有技术中下单翼飞机的内襟翼支臂梁的结构示意图;
图2是本发明的下单翼飞机内襟翼支臂梁的结构示意图。
具体实施方式
下面通过附图和具体实施方式对本发明作进一步详细描述:
某型下单翼飞机内襟翼支臂梁采用2024-T351铝合金厚板机加而成,剖面采用“工”字型,上下缘条厚度为12mm,腹板厚度为8mm,腹板上设计一些厚度为6mm的加强筋以提高梁的承载能力。如图2所示,支臂梁在侧面1上通过8个直径为12mm的高锁螺栓和螺母与机翼翼盒连接,支臂梁上部3与下部4通过4个螺栓5及配套螺母6相连,耳片2内装轴承和螺栓与摇臂相连;在应急断离时,内襟翼受到的冲击载荷传递到螺栓5上,使螺栓5的承载超出设计范围而发生断裂失效,从而使支臂梁上部3与下部4分离,带动内襟翼快速脱离机翼翼盒,从而避免内襟翼与机翼翼盒连接的支臂梁对机翼翼盒产生的穿透或撕裂的安全隐患。
飞机在应急着陆时内襟翼有可能受到的各种形式的冲击载荷,包括剪切载荷、拉伸载荷以及拉剪复合载荷等。如飞机侧滑着陆时,内襟翼传递到耳片2的载荷垂直于耳片,这种情况下,在现有的技术方案中,如图1所示,内襟翼支臂梁会在耳片2处断裂或在侧面1的高锁螺栓处撕裂或穿透机翼翼盒,达不到保护翼盒内燃油不泄露的目的;而本发明的技术方案不仅在剪切的应急情形,还在拉伸的应急情形以及拉伸与剪切复合的应急情形均可以实现内襟翼的快速应急断离,特别是飞机侧滑着陆时,支臂梁的上部和下部的结合面均优先于耳片2及侧面1的高锁螺栓断裂分离,实现最佳的应急断离效果。

Claims (2)

1.一种下单翼飞机的应急断离结构的内襟翼支臂梁,其特征在于:其是由支臂梁的上部(3)和支臂梁的下部(4)所构成,且支臂梁的上部(3)和支臂梁的下部(4)通过安全螺栓(5)和螺母(6)连接。
2.一种下单翼飞机的应急断离结构的内襟翼支臂梁的应用,其特征在于:权利要求1所述的下单翼飞机的应急断离结构的内襟翼支臂梁不仅可用于剪切的应急断离领域,还可应用于拉伸的应急断离领域以及拉伸与剪切复合的应急断离领域。
CN201210170328.9A 2012-05-29 2012-05-29 一种下单翼飞机的应急断离结构的内襟翼支臂梁及应用 Pending CN103448902A (zh)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1130140A (zh) * 1994-12-26 1996-09-04 国家航空工业公司 用于飞行器机翼的可变缝隙空气制动器
CN1164213A (zh) * 1994-11-18 1997-11-05 联合工艺公司 用于飞行器的防撞起落架
US5839698A (en) * 1997-10-23 1998-11-24 Northrop Grumman Corporation Control surface continuous seal
CN102378719A (zh) * 2009-04-06 2012-03-14 空中客车运营有限公司 包括可动飘动体的飞机或航天器机翼
US20120091282A1 (en) * 2009-04-16 2012-04-19 Airbus Operations Gmbh High lift system for an aircraft and method for detecting faults in a high lift system for an aircraft

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1164213A (zh) * 1994-11-18 1997-11-05 联合工艺公司 用于飞行器的防撞起落架
CN1130140A (zh) * 1994-12-26 1996-09-04 国家航空工业公司 用于飞行器机翼的可变缝隙空气制动器
US5839698A (en) * 1997-10-23 1998-11-24 Northrop Grumman Corporation Control surface continuous seal
CN102378719A (zh) * 2009-04-06 2012-03-14 空中客车运营有限公司 包括可动飘动体的飞机或航天器机翼
US20120091282A1 (en) * 2009-04-16 2012-04-19 Airbus Operations Gmbh High lift system for an aircraft and method for detecting faults in a high lift system for an aircraft

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Application publication date: 20131218