求助320飞机起落架

家小村 · 发表于 2010-6-15 00:02:29

请教：熟悉320飞机起落架收放程序的高手帮忙讲解一下收放过程和原理。

yaohoo · 发表于 2010-6-15 23:51:18

EXTENSION
Description of the normal extension phase of the L/G.
DOOR OPENING
When DOWN is selected, the Landing Gear Control and Interface
Unit (LGCIU) takes control of the extension sequence. The LGCIU
signals the doors to open via selector valves and the door proximity
detectors signal the "doors fully open position" back to the LGCIU
in order to continue the sequence
GEAR DOWN
When all doors are fully open, the LGCIU commands a gear extension
while maintaining the "doors open" signal. The gear proximity
detectors signal to the LGCIU that the gears are downlockedDOOR CLOSING
When all the gear are down and locked, the LGCIU signals the doors
to close and lock stay actuators to pressurize, while maintaining the
"gear extended" signal. Door closing hydraulic pressure is fed to the
lock stay actuators to back up the downlock springs. Door uplock
proximity detectors signal to the LGCIU that the doors are uplocked
DOOR CLOSING
As the doors begin to close, the LGCIU cancels the "gear extended"
signal while maintaining the "door close" signal.
The extension sequence is completed.

RETRACTION
Setting the L/G control lever to UP causes systems 1 and 2 changeover.
This allows the system which was previously in standby to control the
next retraction and extension sequence. Each LGCIU controls one
complete gear cycle: one UP selection and one DOWN selection.
DOOR OPENING
The LGCIU must detect all three shock absorbers extended before
allowing the selection of the L/G control lever to UP. The LGCIU
signals the doors to open via selector valves and the door proximity
detectors signal the doors fully open position back to the LGCIU in
order to continue the sequence
GEAR UP
When all doors are fully open, the LGCIU signals the L/G to raise
while maintaining the "doors open" signal to keep the doors "open"
line pressurized. The gear uplock proximity detectors signal the
LGCIU that the gear is uplocked
DOOR CLOSING
When all the L/G is up and locked, the LGCIU signals the doors to
close while maintaining L/G UP signal to keep the "raise" line
pressurized. Door uplock proximity detectors signal the LGCIU that
the doors are uplocked. As soon as the last door closes and locks, the
LGCIU cancels the "L/G raise" signal and maintains the "door close"
signal as long as the safety valve is open.
HYDRAULIC SHUTOFF
Air Data Inertial Reference Units (ADIRUs) 1 and 3 send a signal to
the safety valve to shut off the hydraulic pressure to the L/G system.
HYDRAULIC SHUTOFF
When the airspeed is greater than 260 ±5 kts the hydraulic circuit to
the L/G is depressurized.
The retraction sequence is completed

netwang · 发表于 2010-6-17 14:27:48

要是有中文的就好了

漂流 · 发表于 2010-6-18 00:37:19

不错支持楼主了不过加上中文更好

stsg666 · 发表于 2010-6-18 10:56:17

空客的也是在32章吗？

longwei · 发表于 2010-6-20 00:48:44

是的，就是32章 LANDING GEAR

lixiaoqing · 发表于 2010-6-20 14:24:15

是的，就是32章 LANDING GEAR

chen19860313 · 发表于 2010-6-20 14:26:47

A320的起落架正常情况放下顺序：舱门锁液压打开，舱门作动筒坐动，舱门打开。起落架上位锁液压作动打开，起落架收放作动筒作动放下，下位锁靠弹簧锁好。舱门作动筒作动使舱门关上，舱门锁锁上。
收上时，门的锁打开，门开，起落架下位锁靠液压打开，起落架收上，上位锁液压锁上，门关上，门锁锁好。

冰山冷玉 · 发表于 2010-6-25 19:44:43

强烈要强中文的

山东小伙 · 发表于 2010-6-26 23:04:38

在起飞时,主起落架载荷减少。当飞机升空时,减震柱伸出会影响增加的支架
的长度。起飞时,这让飞机移动经过大的角度。
当操作L/G UP,液动操作的舱门打开。在下位锁作动筒下的液压压力使锁上
支撑的过中心锁松开。主起落架作动筒将MLG收入舱中。收回时,BSCU短时间
地自动地刹住刹车。进入轮舱前,这会阻止机轮的旋转。主起落架锁住进入
舱后,舱门液动关闭。
当选择L/G DOWN时,液动操作的舱门打开。作动筒的收缩将支柱放出。侧支
柱和锁住支撑移动到过中央位置将起落架锁在伸长位置。起落架伸出后,舱
门关闭。当起落架伸出时,减震柱缓减着陆载荷。

c011406219 · 发表于 2010-7-14 20:52:40

速求中文版

lcao_03 · 发表于 2010-7-14 21:23:41

这些话是针对大学毕业的人说的，有求别人给出中文的时间，还不如自己动手用金山翻译！再说对于一个新时代的机务工作者，这些英文应该还是很ＥＡＳＹ的吧！

yaohoo · 发表于 2010-7-14 22:25:39

对，就是这个道理，时代要求进步，操作变得简单，所以我复制了书上的内容

qiali · 发表于 2010-12-24 22:06:48

没维护过320

knavy · 发表于 2010-12-24 22:07:58

没有维护过

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