注册地址 登录
数学建模社区-数学中国 返回首页

付广洋的个人空间 http://www.madio.net/?323553 [收藏] [复制] [分享] [RSS]

留言板

facelist doodle涂鸦板

您需要登录后才可以留言 登录 | 注册地址


厚积薄发 2011-8-29 22:13
付广洋: 啥时候受到咱内蒙的网络赛的证书
请联系数学中国站长
厚积薄发 2011-6-30 13:17
付广洋: 二师兄,啥时候第二阶段出成绩
今天已经出来了!
ximogg 2011-5-15 21:48
你知道厚积薄发是哪个山洞里的神仙了??麻烦也请告知下哈,我是他的忠实崇拜者~~~~
zhaodonghui3939 2011-4-25 13:19
The large passenger aircraft has a considerable risk for forced landing without power suddenly. As for these problems, the ** has made a research related to the airliner landing on the calm water and has got the water-entry parameters estimation.
First, the authors analyze the moment of aircraft into the water for the highly nonlinear dynamics of fluid-structure interaction. With MSC.Dytransimulation software to get the original data set, we have established parameters  to  from the attitude of the BP neural network model to simulation of passenger flow into the coupling power system .Then our prediction of the model and error analysis tell BP neural network control of  -average error 4.7%, 5.4% and 3.1%, it can accurately describe the movement of aircraft into the water during an instant.
Secondly, we research the plane into the water during exercise to meet the laws of Newtonian dynamics. With equation of Morison, we establish the corresponding dynamic model to describe the process of aircraft taxiing  classical dynamical systems. Based on the numerical Calculateeon algorithm, the discrete model, we get the result of the correspondence of and .
Finally, we consider the aircraft to withstand the maximum level of impact load  and sliding time . Based on  and  , the minimum weight function   optimization model have been established. With the search algorithms, we get the entry-water attitude and velocity. The results show we get the smallest Z when the safest Entering water attitude is , , .
qq
收缩
  • 电话咨询

  • 04714969085

关于我们| 联系我们| 诚征英才| 对外合作| 产品服务| QQ

手机版|Archiver| |繁體中文 手机客户端  

蒙公网安备 15010502000194号

Powered by Discuz! X2.5   © 2001-2013 数学建模网-数学中国 ( 蒙ICP备14002410号-3 蒙BBS备-0002号 )     论坛法律顾问:王兆丰

GMT+8, 2020-5-30 18:17 , Processed in 0.335014 second(s), 21 queries .

回顶部