请选择 进入手机版 | 继续访问电脑版
设为首页收藏本站

航空发动机&燃气轮机之家

 找回密码
 立即注册

QQ登录

只需一步,快速开始

扫一扫,访问微社区

搜索
热搜: 活动 交友 discuz

东北大学:智能化设计提升航空发动机

2017-5-19 10:03| 发布者: admin| 查看: 3744| 评论: 1583

摘要: 航空发动机代表一个国家制造业的发展水平。近日,中国青年报·中青在线记者获悉,东北大学孔祥伟团队与沈阳黎明发动机有限公司合作,在航空发动机领域取得了重大突破。

他们开发的具有自主知识产权的“航空发动机铸锻件数字化设计平台”,获得了多项专利,近期获得辽宁省科技进步三等奖。在该软件平台,实现了参数驱动和并行设计,大大提高了发动机叶片设计的效率。


据了解,此项研究成果近期已成功应用于“太行”“昆仑”“大运”以及预研机等叶片的工艺设计过程中,为我国装备现代化作出贡献。这项研究成果也开创了国内叶片智能化设计的先河,起到了信息化建设的引领作用。经鉴定,这项智能化设计的新技术达到了国内领先、国际先进水平,实现了航空发动机模锻叶片计算机辅助设计的自主创新。


航空发动机是飞机的心脏。叶片则是“心脏”中一种特殊的零件,发动机就是依靠众多的叶片来完成对气体的压缩和膨胀,并以最高的效率产生强大的动力来推动飞机前进。


发动机叶片的数量多、形状复杂、质量要求高、加工难度大,而且是故障多发的零件,一直以来都是发动机的生产关键。目前,国外大部分锻造企业已经将计算机辅助设计制造技术应用于实际生产,国内部分企业也已经开始了锻造过程的计算机辅助制造设计以及成形模拟软件的应用开发,但是叶片锻件的设计、生产仍处于初级阶段,特别是叶片模锻工艺的设计仍然依靠技术人员的经验和大量烦琐的计算来完成,需要很长的设计和模具制造周期,严重制约着公司航发研制所需的快速反应能力。


为了改变传统的模锻叶片及模具的设计方法,提升模具设计质量,提高叶片使用性能,加快型号研制和生产效率,东北大学以孔祥伟教授为首的团队从2003 年开始对航空发动机模锻叶片计算机辅助智能设计平台开发进行研究。目前已形成了具有自主知识产权的航空发动机模锻叶片计算机辅助智能设计平台,实现了叶片零件、锻件、毛坯、模具等的三维数字化、高精度、快速设计,显著提高了叶片设计效率和模具的设计精度,设计时间由原来的两至三个月缩短为两周,为批产赢得了宝贵的时间。


针对叶片锻造过程中工艺路线、锻造过程耗时长、资源消耗较大等问题,项目组开创性地将专家系统、参数化建模及克隆等技术综合应用于模锻叶片设计中,成功完成了叶片锻造程序化、模块化、智能化设计,实现了模型集成及数据共享。叶片零件图、锻件图、毛坯图、模具图等工艺文件能够快速设计和输出,设计人员还可以根据设计需要,在设计过程中对工艺路线进行修改,使产业化生产效率得到了大幅提高。


叶片在锻造的过程中会出现边缘裂纹等问题,为了改善叶片设计制造质量,团队基于现代最优化设计方法及数值分析理论,建立了叶身零件、锻件及工装型面设计数学模型。所开发的模锻叶片零件三维建模模块有效省去了重复建模的工作,解决了回弹与工艺条件、叶片形状尺寸、叶片材料之间的数值联系,提高了制造效率和精度,同时又保证了叶身及模具的光顺性,模具的返修率明显降低,从根本上改善了叶片设计制造质量。


此外,团队还以叶片模锻工艺过程为基础,基于虚拟装配技术,完成了零件、锻件及模具的协同设计,并对模锻工艺叶片的型面进一步优化,使模具设计质量好,避免重复修模,实现了设计与制造部门的无缝链接,为航空发动机无纸化制造奠定了基础。经鉴定,项目成果技术水平达到了国内领先、国际先进水平,实现了航空发动机模锻叶片计算机辅助设计的自主创新。


据介绍,该平台的应用不仅节约了大量的人力,还大大缩短了产品的研发周期,满足了新机快速研制的需要,扭转了传统叶片设计效率低下的被动局面。


鲜花

握手

雷人

路过

鸡蛋
发表评论

最新评论

引用 游客 2018-5-27 04:36
cutting viagra pills
<a href="http://viagranbdnr.com/#">viagra without a doctors prescription</a>
get insurance pay viagra
[url=http://viagranbdnr.com/#]viagra without doctor prescription[/url]
buy viagra and cialis online
<a href="http://canadamdonlineget.com/#">canadian pharmacies online</a>
qual melhor generico viagra
[url=http://canadamdonlineget.com/#]best canadian mail order pharmacies[/url]
lowest prices on viagra
引用 游客 2018-5-27 04:09
quanto costa il viagra da 100 mg in farmacia
<a href="http://viagranbdnr.com/#">viagra without a doctor prescription</a>
what does a viagra pill do to a woman
[url=http://viagranbdnr.com/#]viagra without a prior doctor prescription[/url]
viagra for sale no prescription uk
<a href="http://canadamdonlineget.com/#">list of reputable canadian pharmacies</a>
sale viagra tescos
[url=http://canadamdonlineget.com/#]canada pharmacies[/url]
female viagra pink pill ...
引用 游客 2018-5-27 03:42
viagra generico online spedizione rapida
<a href="http://viagranbdnr.com/#">viagra without a doctors prescription</a>
buy viagra online forums
[url=http://viagranbdnr.com/#]viagra without a prior doctor prescription[/url]
viagra pill costs
<a href="http://canadamdonlineget.com/#">canadian pharmacies shipping to usa</a>
viagra 1000mg
[url=http://canadamdonlineget.com/#]legitimate canadian mail order pharmacies[/url]
buy viagra online from uk ...
引用 游客 2018-5-27 02:35
citrato de sildenafil 50 mg
<a href="http://canadamdonlineget.com/#">canadian pharmacies online prescriptions</a>
why am i getting viagra spam
[url=http://canadamdonlineget.com/#]top rated online canadian pharmacies[/url]
buying viagra in philippines
<a href="http://viagradcvy.com/#">viagra without a doctor prescription usa</a>
generic viagra pill identifier
[url=http://viagradcvy.com/#]viagra without doctor prescription[/url]
new price of viagra in canada ...
引用 游客 2018-5-27 02:31
cheap cialis and viagra
<a href="http://canadamdonlineget.com/#">top rated online canadian pharmacies</a>
generic viagra from india
[url=http://canadamdonlineget.com/#]canada pharmacies online prescriptions[/url]
pfizer annual viagra sales
<a href="http://viagradcvy.com/#">viagra without a prior doctor prescription</a>
50mg viagra dosage
[url=http://viagradcvy.com/#]viagra without a doctor prescription usa[/url]
can you buy real viagra online ...
引用 游客 2018-5-26 08:20
is it safe to order viagra over the internet
<a href="http://canadamdonlineget.com/#">canadian pharmacies online</a>
can i buy viagra over the counter in mexico
[url=http://canadamdonlineget.com/#]canada pharmacies[/url]
do keep getting viagra emails
<a href="http://viagradcvy.com/#">viagra without doctor</a>
using cialis with viagra together
[url=http://viagradcvy.com/#]viagra without a doctor prescription[/url]
viagra price in ireland
引用 游客 2018-5-26 07:54
where do buy viagra
<a href="http://canadamdonlineget.com/#">list of reputable canadian pharmacies</a>
best online source viagra
[url=http://canadamdonlineget.com/#]canadian online pharmacies[/url]
viagra sale pharmacy
<a href="http://viagradcvy.com/#">viagra without doctor</a>
cheap viagra tablets sale
[url=http://viagradcvy.com/#]viagra without a prior doctor prescription[/url]
viagra generico en chile
引用 游客 2018-5-26 04:17
where to purchase generic viagra
<a href="http://viagranbdnr.com/#">viagra without a doctor prescription usa</a>
medicamentos genericos viagra
[url=http://viagranbdnr.com/#]generic viagra without a doctor prescription[/url]
para que serve sildenafil 50mg
<a href="http://canadamdonlineget.com/#">best canadian mail order pharmacies</a>
viagra for sale
[url=http://canadamdonlineget.com/#]canadian pharmacies online prescriptions[/url]
generico viagra now ...
引用 游客 2018-5-26 04:07
viagra de 25 mg funciona
<a href="http://canadamdonlineget.com/#">canada pharmacies online prescriptions</a>
erfahrungen mit viagra online bestellen
[url=http://canadamdonlineget.com/#]canadian pharmacies that ship to the us[/url]
is 50mg of viagra enough
<a href="http://viagradcvy.com/#">viagra without a doctor prescription</a>
can take viagra pills
[url=http://viagradcvy.com/#]viagra without a doctor prescription[/url]
buy viagra in australia ...
引用 游客 2018-5-26 04:04
comprar viagra generico mastercard
<a href="http://canadamdonlineget.com/#">canadian pharmacies online prescriptions</a>
20mg generic viagra
[url=http://canadamdonlineget.com/#]top rated online canadian pharmacies[/url]
viagra sale in sydney
<a href="http://viagradcvy.com/#">viagra without a doctors prescription</a>
sildenafil 50 mg northia
[url=http://viagradcvy.com/#]viagra without a doctor prescription usa[/url]
getting viagra costa rica ...
引用 游客 2018-5-25 19:24
viagra buy greece
<a href="http://viagranbdnr.com/#">viagra without doctor</a>
safe order viagra
[url=http://viagranbdnr.com/#]viagra without a doctor prescription usa[/url]
mg sildenafil
<a href="http://canadamdonlineget.com/#">online canadian pharmacies</a>
compra de viagra generica
[url=http://canadamdonlineget.com/#]canadian online pharmacies[/url]
took 200 mg viagra
引用 游客 2018-5-25 19:00
sildenafil generico venezuela
<a href="http://canadamdonlineget.com/#">list of reputable canadian pharmacies</a>
buy viagra online next day delivery uk
[url=http://canadamdonlineget.com/#]legitimate canadian mail order pharmacies[/url]
color of viagra pill
<a href="http://viagradcvy.com/#">viagra without a doctor prescription</a>
viagra online overnight shipping
[url=http://viagradcvy.com/#]viagra without a doctors prescription[/url]
get best results using ...
引用 游客 2018-5-25 18:03
trust pharmacy canada
[url=http://nicholson-hall.com/]canada pharmacies online prescriptions[/url]
pharmacy canada
<a href="http://canadianpharmaciesnnm.com/">canadian viagra</a>
引用 游客 2018-5-25 17:29
online canadian pharmacy
[url=http://exceleste.com/]global pharmacy canada[/url]
canadian pharmacy viagra brand
<a href="http://globalpartnerstv.com/">canadian online pharmacy</a>
引用 游客 2018-5-25 17:28
can i cut a viagra pill in half
<a href="http://viagranbdnr.com/#">viagra without a prior doctor prescription</a>
where buy viagra
[url=http://viagranbdnr.com/#]viagra without a doctors prescription[/url]
get free trial viagra
<a href="http://canadamdonlineget.com/#">canadian pharmacies shipping to usa</a>
can you take half a viagra pill
[url=http://canadamdonlineget.com/#]canadian online pharmacies[/url]
where to buy sildenafil citrate in canada ...
引用 游客 2018-5-25 17:24
buy prescription drugs without doctor
[url=http://maddenbattles.com/]canadian pharmacy[/url]
rx price comparison
<a href="http://vianbcusaship.com/">canada pharmacies online prescriptions</a>
引用 游客 2018-5-25 16:11
canadian pharmacy no prescription needed
[url=http://dartechportal.com/]canadian online pharmacies[/url]
drug stores near me
<a href="http://visitwaushara.com/">northwestpharmacy</a>
引用 游客 2018-5-25 10:06
p http://cialisxtl.com cialis generic date <a href= http://cialisxtl.com/over-the-counter-cialis >cialis</a> ah [url=http://cialisxtl.com/liquid-cialis]cialis[/url] what doe cialis look like
引用 游客 2018-5-25 06:54
can you get viagra over the counter in ireland
<a href="http://viagranbdnr.com/#">viagra without prescription</a>
viagra 50 100 mg unterschied
[url=http://viagranbdnr.com/#]viagra without a doctors prescription[/url]
buy viagra creme
<a href="http://canadamdonlineget.com/#">aarp recommended canadian pharmacies</a>
what is the cost of 100 mg viagra
[url=http://canadamdonlineget.com/#]canadian pharmacies online[/url]
when will generic viagra be released ...
引用 游客 2018-5-23 11:45
how to get dr to prescribe viagra
<a href="http://viagramakay.com/#">viagra without doctor prescription</a>
cipla sildenafil citrate 100mg
[url=http://viagramakay.com/#]viagra without a doctors prescription[/url]
price of viagra medicine
<a href="http://canadamypharmacykee.com/#">top rated online canadian pharmacies</a>
buying viagra online illegal australia
[url=http://canadamypharmacykee.com/#]legitimate canadian mail order pharmacies[/url]
sildenafil ci ...

查看全部评论(1583)

QQ|Archiver|手机版|小黑屋|航空发动机&燃气轮机之家 ( 沪ICP备16010109号  

GMT+8, 2018-5-27 17:46 , Processed in 0.082344 second(s), 19 queries .

Powered by Discuz! X3.2

© 2001-2013 Comsenz Inc.

返回顶部