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发表于 2008-3-7 09:17:08
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来自: 中国山东泰安
目录
目录9 p$ c7 J/ b% n6 P4 ]: @0 q4 S$ Q
第一章绪论....................................................................1- P8 J. o2 s3 L
1.1本课题研究背景.....................................................................................................1
9 ^2 z6 ]& w5 N: q1.2国内外研究技术现状............................................................................................. 2. m1 a! g2 m7 S8 [( s* x0 U# R
1.3本课题研究内容........................................................................................................ 2+ p3 F( x/ s$ q/ L+ [- Q, G
第.章基本概念与基本原理............................................................................................... 5- r% r4 f) w) \) s/ v/ K& h7 q
2.1翼型结构基本概念............................................................................................57 [' Y7 Y; g7 t
2.1.1翼型几何参数....................................................................................................5- Q5 T, O ~1 D* C( h c* R4 z
2.1.2翼型介绍................................................................................................79 ~! \ }: U! ? s6 Z( `! z4 @
2.2翼型空气动力学相关概念......................................................................:....................... 73 s3 b2 w6 M8 n
2.2.1作用在翼型上的空气动力........................................................................................ 7, `: }% q) j1 a% }, q0 V
2.2.2空气动力的影响因素................................................................................................ 9
3 V# W- L* f) x5 B) {2.3叶片基本气动理论..............................................................................................11
3 z! s( G# N, }2 C9 v! h! _ 2.3.1贝兹理论...................................................................................................................11& s" S* |3 G( S
2.3.2涡流理论..........................................................................................13" o4 @2 j9 Q/ f% r
2.3.3叶素理论.................................................................................................14
# W) n; C* O- C/ k+ m 2.3.4动量理论.........................................................................................................16
9 m |& J; m3 j/ f5 B2.4本章小结................ ................................................................................17
" b/ D7 z" L( j第三章叶片设计.......................:...............................................18
4 Q0 s" m: x% X1 ^5 s/ r3.1前言.......................................................................................................18
+ \1 M& Y; O% y& a8 t! Q/ @3.2风力机特征风速的确定............................................................................................18
$ ]! @' x7 X3 S9 f( B$ z* R# Y 3.2.1风速的数学表达式..............................................................................................18
2 d% m d. Q9 x( W 3.2.2风力机特征风速的推导计算.................................................................................. 20# [5 \1 V: [% t7 l% k* q" v
3.3叶片基本设计方法....................................................................................................21
% n( h/ p) s4 z& S: _: ^' ^ p 3.3.1计算风轮直径模型..........................................................................................21
4 l b R+ i0 N+ y3 }0 j& L7 \/ o9 H9 Y 3.3.2叶片重要参数的选取.............................................................................................. 238 l2 A V- r( Z/ U" X! A
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* P. j8 r% j; l5 F风办发电机叶t卜iR计研究! h4 k/ l Y$ n- H4 l- t- Z$ @
3.3.3叶展形状设计模型..............................................................................................256 O+ @, K& N/ a5 Z6 F O E% N
3.4叶片设计实例.................................................................................................29
# A5 V" y8 v2 | 3.4.1风力机特征风速的确定.......................................................................................... 29, M: t# ]/ f) u3 Z) f7 z
3.4.2叶片重要参数选取..............................................................................................30
! h% C1 n2 h W. V% D+ k5 y 3.4.3叶展形状设计...................:..........................................................................32# _. |" u: [0 A: n* \& D
3.5设计结果形象化................................................................................................41$ ^1 v! ?4 ?7 P1 j3 i* O
3.5.1叶片截面空间坐标的求解...................................................................................... 41
9 H8 v2 D$ |& j" E 3.5.2叶片计算机3D绘图............................................................................................... 44
( u# O7 ^2 _7 M+ d; v 3.5.3该3D建模方法的优点........................................................................................... 45
5 i& _: U/ [' P7 N, w7 w* ?5 v3.6叶片模型图......................................................................................................... 46
" z5 D. X3 W7 f8 g3.7本章小结................................................................................................................470 m: |- ?1 i- J8 m( g/ N0 L
第四章静态气动性能模拟计算........................:.............................. 48
! a8 V! @" V4 l+ R1 C4.1前言.......................................................................................................48; i* R, J8 O$ v2 d
4.1.1有量纲性能指标...................................................................................................... 48
( R3 \* @; T% n) @- R; N 4.1.2无量纲性能指标、..................................................................................................... 48- m! p2 b/ [5 I, L- M# L
4.1.3有量纲指标和无量纲指标关系......................................................................48! y& _, c: x4 Q: h
4.2叶片气动性能计算...............................................................................................49; x* \ H+ E! i# u. s
4.2.1贝茨模型..........................................................................................................498 E0 a; x3 A% Q! T% w
4.2.2涡流模型—Glauert模型和Wilson模型.................................................49- O( v/ i. W) _# ~7 k* X$ g: k
4.3各种修正系数..............................................................................................54
3 A! a! P' c% w& p 4.3.1叶片数修正...................................................................................54( J. ~( Q6 _$ A' g3 s
4.3.2翼型修正....................................................................................................55
?% M* B) K/ ^3 h) V, f. E 4.3.3叶尖修正..........................................................................................................55 \' M0 }( Q1 k( o5 L
4.3.4轮毅修正..............................................................................................................56
4 C7 ~ u3 D% M- G1 N( V" @1 X4.4模型修正结果................................................................................................56% y1 b5 E A7 [" g1 g$ \
4.4.1性能修正表..........................................................................................................57
$ Q% D" g3 `4 v6 ~ 4.4.2结果分析..........................................................................................................60$ `8 e1 x& d4 A5 C7 x1 \
4.5本章小结........................................................................................................................ 61
: y; f7 Y% D5 q' O# ` 第五章叶片动力学分析........................................................... 62
, x$ x( f" J; Z( p2 y/ Z" w广西大学祠盯士学位金仑.弋
1 d) N6 g" u \6 {7 H风办发电机叶少卜宝又计笼开乡t
' \: X. z8 N) u1 j* K; H5 N9 t9 ~5.1前言............................................................................................................623 [% W9 B& r- ~" b" l" a
5.2动力学分析方法............................................................................................................ 62
2 j: E6 d3 J4 s8 M K' L+ @5.3计算模型................................................................................................................63& G K4 I: ^/ _3 a' G
5.4分析工具................................................................................................................63
) {( j" o/ R/ h0 q/ ?5.5分析步骤.............................、.............................................................................65% ~' Y2 R2 b! S* Z* z
5.5.1有限元建模.............................................................................................................. 656 f7 O( S) Q9 G+ p
5.5.2施加约束..........................................................................................................67
8 @* W: B- F# w9 Z5.6计算结果........................................................................................................678 N5 K) W; V4 N) c; `, D( V
5.6.1模态计算结果..................................................................................................67
2 T/ B: n0 P8 @8 B" {3 S 5.6.2结果分析..............................................................................................................689 a# U* }/ X1 E. v( [
5.6.3对比计算.................................................................................................................. 72
& |$ s7 S3 T8 c z0 L7 w 5.6.4计算模型的改进...................................................................................................... 743 z6 E ]# T& ?( ~- r3 s
5.6.5结论..................................................................................................................74
/ M; q: n5 D" ?% }; {4 y$ b8 t& }5.7本章小结................................................................................................................742 d% Y: ], _; Y
备第六章结论及展望................................................................................ 76+ ~: g6 _0 y1 C7 C7 H) a2 g: L# j+ F
6.1结论....................................................................................................................765 a$ x5 s( o! b* j
6.2论文堕待解决的问题.................................................................................................... 77
% v7 c8 p6 m' m$ F0 d6.3展望..................................................................................................................776 o2 u! A' l* i3 q% y$ B
参考文献.......................................................................:..785 \4 R5 D3 ^: [) F4 ?
附录1翼型NACA4412数据.....................................................82
9 L1 w2 r: L5 v& L8 K$ ?+ l0 {附录2翼型NACA4412气动性能表(RE=500000) ............................................................ 83
* _. |' q6 p0 U- s7 P$ A附录3翼型NACA4412气动性能图(RE=500000) ................................................. 84! N9 u+ n! h1 Y7 N; x- S
致谢.......................................................................................................... 85, [+ l+ I! }& K m
攻读学位期间发表的学术论文目录................................................................................... 86 |
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