第八百一十四章 舱门的问题(2 / 2)

大国航空 华东之雄 1026 字 2022-04-26

那么,问题在哪里?

“这次,我是俯冲下来的时候发现的,俯冲进入低空,虽然还没有到达超音速,但是,空气稠密,所以,我觉得,问题一定出在气动破坏上。”秦风说道:“虽然在歼七歼八上我们没有遇到,但是那些飞机,进气方式和我们的不同,所以,不能类比。”

歼七是机头进气,歼八是机头或者两侧进气,对机腹是没有影响的,但是呢,歼十不同了,歼十是机腹进气,进气道的前面,就是起落架的位置,也就是说,进气的气流,可能也会影响到这里的舱门!

要知道,类似于F-16这样的战斗机,已经利用前面的机头下方的位置,对进气进行预压缩了!

“秦风同志分析的有道理,我们不能按照以前的经验主义来办事,遇到问题,我们就要认真地思考和分析,解决问题。”宋老说道:“不过,我们要如何来确定是气动力矩的作用?”

要知道是气动力矩问题,那就要在该位置,增加气压传感器?但是在那个位置,气压传感器可不好固定,因为那个舱门是要转动的。

“我建议,在舱门增加一个位移传感器,检测舱门口在不同速度下的位移情况。”秦风说道。

位移传感器,可以在舱门口,固定在那里,不用跟着转动,比气压传感器要容易得多。

“好,我们试试吧。”宋老说道:“修复舱门,增加传感器。”

“可是,我们的时间不多了,还有一些科目没试飞呢!”

“现在这个问题,是试飞中发现的,既然发现了,那就要解决掉。”宋老的态度是很坚定的:“如果在表演的时候,出现了这种问题,我们是接着表演,还是返航降落?”

搞飞机,不能有半点的侥幸心理,发现了问题,那就要解决掉,现在,就动手吧!

第二天的时候,一切都安装到位了,当和飞控系统联系起来之后,数据可以在试飞中就直接发送回来了。

地面上,技术人员看着实时传送回来的数据,都惊呆了。

果然,舱门在移动!

速度小的时候,移动不明显,随着速度的增加,移动越来越快,当速度达到800千米每小时的时候,形变量已经达到了3.8厘米!

舱门,就是这样被破坏的,上次当秦风飞超音速的时候,舱门终于承受不住了,开始变形!

问题找到了,果然是他们认为最不可能出现的气动力矩,因为这个数字,是随着速度的增加在增加的,速度增大,那空气的相对速度就增加,也就意味着表面的气压增大,谁能想到,竟然会增加到让舱门变形的程度!

“必须要提高舱门的强度,立刻改进我们的设计!”宋老说道。

现在舱门发生的这些,都是因为舱门的强度不够造成的,所以,就要增加舱门的强度,这样就能解决问题了,哪里不够补哪里,苏27也是这么干的。

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