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第三十章 曙光

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李远玲在斯贝航空发动机上搞的这个改型风扇,如果按此时共和国的科研水准衡量算作成功也没什么不妥。龙腾小说ltxsba.com

李远玲改前的原版斯贝性能,军用推力为54.5KN,加力推力91.1KN,航空发动机整体质量1850KG。

被李远玲换装了新风扇之后,新斯贝的军用推力变成了61.58KN,加力推力98.18KN,航空发动机整体质量1660KG,推比从原来的5.05提升到6.03

如果把这款新斯贝丢给眼下咬牙研发歼轰七海军来说,绝对属于可以交差的项目。

“小顾,华晨又没有项目节点催着,再说眼前这款改型仅仅改了风扇,结构、材料一点都没动可算不上新款。”

“据我估算,更换掠形叶片之后,进气气流的壁面损失应该得到极大改善,进气效率和总压都会提升很多才对,军用推力提升13%这个数据有些小了。”

“李姐可真厉害,能有13%我都觉得不可思议了。”

“等超算吧,简单的能做的东西我们都做完了,更进一步的要求越来越高了。”

李远玲有些感慨的叹了口气。

此时的李远玲自然不知道,自己正在走在正确的道路之上。

根据新世纪之后美国普惠对掠形叶片的研究表明,在同款航空发动机上其他因素不变,仅把包括风扇和压气机在内的所有叶片全部掠形化之后,航空发动机推力最多可以提高23%。

当然,能否达到这个效果,就看技术人员的设计功底了,在新世纪之后,共和国科学院院士著名航空专家刘聚声曾一语道破共和国航空发动机落后的根源。

刘院士直截了当的指出,共和国航空发动机落后,压根就不是材料不行,缺少顶尖的设计人员才是共和国制造不出先进航空发动机最主要的因素。

比如斯贝航空发动机在美国的一系列改型,艾利逊和罗罗联合在没采用新材料的情况下,从设计角度通过扩大航发直径,调整风扇和压气机将代号TF美版斯贝的最大推力推高至110KN。

当然,限于时代罗罗和艾利逊提升TF系列航空发动机所采用的手段很是简单粗暴,直接采用扩大航空发动机直径的方式提高进气量,管子粗了进的气也就多了,前边进气多相当于后边排气多推力自然就大了。

相对李远玲不动外部尺寸的高难度掠形风扇,改管子口径这种至少差了一代,如果李远玲拿扩大了航发直径的TF系列做风扇改版试验的底子,能把110KN的推力提高到124KN。

“李姐,那二十八个标准循环测试通过了之后,这款发动机要怎么办啊?”

“小顾你这心眼可真实诚,当然是接着继续改了,钢制的机匣换成树脂的,压气机的前端叶片可以换成铝合金,镍基的涡轮盘可以换成单晶合金的,超算下线后掠形叶片在优化优化,这样几样改完估摸推比差不多就该够7了,如果新叶片没问题材料替换这种事最多两年足够完成,那会华晨就能拿着新发去海军那边换点零花钱了。”

“天上掉下来个推比的7航空发动机,搞歼轰七的那帮人还不得乐晕了。”

这次华晨动力大动干戈进行标准循环试车,李远玲除了完善华晨在航空发动机领域的设计和测试标准之外,验证掠形叶片的长期性能和进一步掌握斯贝核心机的循环参数都是主要的目的。

“如果标准循环测试顺利通过,小顾记得用一千所的名头给西飞下个邀请函,把推比7斯贝改型的事情和西飞打个招呼,发动机好了飞机的数据自然会漂亮,总比西飞用库房里的那些旧货强。”

顾海云闻言点了点头。

两人说话间李远玲看完了文件上的数据,随着天色越来越晚,去河对岸园区吃饭的华晨员工陆陆续续的回到了测试车间,时间不长台架测试的巨大金属盒子附近就聚拢了不少人。

“李总,浪潮那边的超算从上个月就说快送来了快送来了,现在还没个动静到底要等到什么时候啊。”

在华晨一半称呼李远玲李总的都是远嘉收购了怡和之后才入职的新员工。

“小王你们组今天在哪里吃的饭?”

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