avionics systems integration 讨论# Aviation - 航空航天
b*i
1 楼
是自动用applet viewer，如何自动把这个窗口移动到屏幕中间？每次手动移很麻烦。
似乎applet假定就是嵌入在浏览器中的，所以做不到？
似乎applet假定就是嵌入在浏览器中的，所以做不到？
j*d
2 楼
一直做固定翼飞机的systems integration，现在公司接了不少直升机的项目。个人观
点是
avionics系统在不同类型的飞机上大同小异，除了environmental qualifications不同
之外，
不知道还没有什么需要特别注意的地方？没有FAR29的经验，欢迎同行来讨论！飞行操
纵系统暂不在考
虑之列。
难得找到一个航空业的讨论区，但是貌似这里人气不旺啊！难道是这个行业的兄弟的太
少了？
点是
avionics系统在不同类型的飞机上大同小异，除了environmental qualifications不同
之外，
不知道还没有什么需要特别注意的地方？没有FAR29的经验，欢迎同行来讨论！飞行操
纵系统暂不在考
虑之列。
难得找到一个航空业的讨论区，但是貌似这里人气不旺啊！难道是这个行业的兄弟的太
少了？
t*5
3 楼
是啊，进这行挺难的。可惜，我跟你的具体专业不一样。
加点人气
加点人气
j*d
4 楼
谢谢啊，这位兄弟是什么专业的？structural？
【在 t******5 的大作中提到】
: 是啊，进这行挺难的。可惜，我跟你的具体专业不一样。
: 加点人气
【在 t******5 的大作中提到】
: 是啊，进这行挺难的。可惜，我跟你的具体专业不一样。
: 加点人气
e*n
5 楼
what do you mean?
什么专业进这行容易?
【在 t******5 的大作中提到】
: 是啊，进这行挺难的。可惜，我跟你的具体专业不一样。
: 加点人气
什么专业进这行容易?
【在 t******5 的大作中提到】
: 是啊，进这行挺难的。可惜，我跟你的具体专业不一样。
: 加点人气
j*d
6 楼
已经做了一段时间的helicopter的certification了，avionics systems基本上和固定
翼飞机
一样。有一点不同是直升机的pilot是在右座的，正好和固定翼相反。
还有一点不同是在安装天线时要尽量远离rotor hub，还要考虑旋翼对天线的遮挡造成
的影响，有一篇
空客的研究报告是关于旋翼对gps天线的影响的。
翼飞机
一样。有一点不同是直升机的pilot是在右座的，正好和固定翼相反。
还有一点不同是在安装天线时要尽量远离rotor hub，还要考虑旋翼对天线的遮挡造成
的影响，有一篇
空客的研究报告是关于旋翼对gps天线的影响的。
d*e
7 楼
The basic functionality of the most avionics units are rather similar
between fixed and rotary. But there are more and more systems are becoming
very aircraft dependent as part of the integrated electronics trend.
In general a large number of ata 23, 31, and 34 parts are not too different,
but if you get into systems like eicas, efis, ifis, fms, or anything in ata
22, 27, 73, 76, 77, it will be a different story.
What do you refer as ENVIRONMENTAL? I don’t think it differentiates between
fixed a
between fixed and rotary. But there are more and more systems are becoming
very aircraft dependent as part of the integrated electronics trend.
In general a large number of ata 23, 31, and 34 parts are not too different,
but if you get into systems like eicas, efis, ifis, fms, or anything in ata
22, 27, 73, 76, 77, it will be a different story.
What do you refer as ENVIRONMENTAL? I don’t think it differentiates between
fixed a
j*d
8 楼
Some category has different testing standard for fixed wing and
helicopter, such as vibration.
becoming
different,
ata
between
【在 d*********e 的大作中提到】
: The basic functionality of the most avionics units are rather similar
: between fixed and rotary. But there are more and more systems are becoming
: very aircraft dependent as part of the integrated electronics trend.
: In general a large number of ata 23, 31, and 34 parts are not too different,
: but if you get into systems like eicas, efis, ifis, fms, or anything in ata
: 22, 27, 73, 76, 77, it will be a different story.
: What do you refer as ENVIRONMENTAL? I don’t think it differentiates between
: fixed a
helicopter, such as vibration.
becoming
different,
ata
between
【在 d*********e 的大作中提到】
: The basic functionality of the most avionics units are rather similar
: between fixed and rotary. But there are more and more systems are becoming
: very aircraft dependent as part of the integrated electronics trend.
: In general a large number of ata 23, 31, and 34 parts are not too different,
: but if you get into systems like eicas, efis, ifis, fms, or anything in ata
: 22, 27, 73, 76, 77, it will be a different story.
: What do you refer as ENVIRONMENTAL? I don’t think it differentiates between
: fixed a
d*e
9 楼
for LRU? that is something I didn't know about, want to give me more insight
on that?
thx
on that?
thx
j*d
10 楼
When you make findings of compliance, you must consider the component's
working environment. In the helicopter case, the vibration is one factor
which is different from fixed wing aircraft. Similar examples are turbo
jets and turbine aircraft.
Another example is altitude testing standard. Some LRU's are tested below
30000ft, but the aircraft would fly at 50000ft and the LRU would be
mounted in unpressurized location. Then the subject LRU is not qualified
for this aircraft.
Selecting qualified LRU's is only part of the avionics systems
integration.
insight
【在 d*********e 的大作中提到】
: for LRU? that is something I didn't know about, want to give me more insight
: on that?
: thx
working environment. In the helicopter case, the vibration is one factor
which is different from fixed wing aircraft. Similar examples are turbo
jets and turbine aircraft.
Another example is altitude testing standard. Some LRU's are tested below
30000ft, but the aircraft would fly at 50000ft and the LRU would be
mounted in unpressurized location. Then the subject LRU is not qualified
for this aircraft.
Selecting qualified LRU's is only part of the avionics systems
integration.
insight
【在 d*********e 的大作中提到】
: for LRU? that is something I didn't know about, want to give me more insight
: on that?
: thx
d*e
11 楼
but the requirements always state so and so, just that how you comply to it
would be different, I still don't see how the vibration requirement would be
different
would be different, I still don't see how the vibration requirement would be
different
j*d
12 楼
You must review the environmental specifications of the LRU, sometimes you
have to decode the vendor's environmental table against DO-160. To
understand what I mentioned about vibration, you have to study the section
8.2.2 of DO-160. If you don't have the working knowledge, it's difficult
to explain in a few sentences here.
it
would be
【在 d*********e 的大作中提到】
: but the requirements always state so and so, just that how you comply to it
: would be different, I still don't see how the vibration requirement would be
: different
have to decode the vendor's environmental table against DO-160. To
understand what I mentioned about vibration, you have to study the section
8.2.2 of DO-160. If you don't have the working knowledge, it's difficult
to explain in a few sentences here.
it
would be
【在 d*********e 的大作中提到】
: but the requirements always state so and so, just that how you comply to it
: would be different, I still don't see how the vibration requirement would be
: different
d*e
13 楼
I thought we were talking about avionics integration, which wouldn't get
into too much technical details sections 8.7 and on specify. Maybe we are
looking at different levels of integration. To me that is all done at the
supplier level. Anyway ...
into too much technical details sections 8.7 and on specify. Maybe we are
looking at different levels of integration. To me that is all done at the
supplier level. Anyway ...
q*3
14 楼
能进航空界很难，最难的就是第一步，公司少的可怜，如果人家不要你基本就没机会了。
而且系统工程师，机械工程师都可以入行，但是航空工程师确无法到别的行业去，一看
就饱了。
我非常熟悉C/C++, Java, Ada, J2EE,SQL，RTCA-DO-178B，人家一看我研究生的学航空
的理都不理
而且系统工程师，机械工程师都可以入行，但是航空工程师确无法到别的行业去，一看
就饱了。
我非常熟悉C/C++, Java, Ada, J2EE,SQL，RTCA-DO-178B，人家一看我研究生的学航空
的理都不理
c*o
15 楼
只知道一跟旋翼相关就会贵啊,自动驾驶仪肯定是这样的.
理论上说旋翼确实更容易受震动影响啊,姿态估计之类的,从俺学术界的经验来说.
【在 j*****d 的大作中提到】
: 一直做固定翼飞机的systems integration，现在公司接了不少直升机的项目。个人观
: 点是
: avionics系统在不同类型的飞机上大同小异，除了environmental qualifications不同
: 之外，
: 不知道还没有什么需要特别注意的地方？没有FAR29的经验，欢迎同行来讨论！飞行操
: 纵系统暂不在考
: 虑之列。
: 难得找到一个航空业的讨论区，但是貌似这里人气不旺啊！难道是这个行业的兄弟的太
: 少了？
理论上说旋翼确实更容易受震动影响啊,姿态估计之类的,从俺学术界的经验来说.
【在 j*****d 的大作中提到】
: 一直做固定翼飞机的systems integration，现在公司接了不少直升机的项目。个人观
: 点是
: avionics系统在不同类型的飞机上大同小异，除了environmental qualifications不同
: 之外，
: 不知道还没有什么需要特别注意的地方？没有FAR29的经验，欢迎同行来讨论！飞行操
: 纵系统暂不在考
: 虑之列。
: 难得找到一个航空业的讨论区，但是貌似这里人气不旺啊！难道是这个行业的兄弟的太
: 少了？
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