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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
x/ Y3 g8 y$ D0 |; z( E7 x! [3 I6 q第一章绪论....................................................................1
! U) G; u% G7 M1.1本课题研究背景.....................................................................................................1
4 A, U- |+ q" v, L, @5 }1.2国内外研究技术现状............................................................................................. 2( D! U8 k, J$ i7 h6 B3 X/ a
1.3本课题研究内容........................................................................................................ 2
# n f- `3 x6 ]/ j第.章基本概念与基本原理............................................................................................... 5# p+ m x( z/ C; C# z8 A3 u
2.1翼型结构基本概念............................................................................................5
+ q5 W$ v9 S: @; ~+ | 2.1.1翼型几何参数....................................................................................................5# U7 ~' e" x' d0 n
2.1.2翼型介绍................................................................................................7$ w g: H. d/ k) X% H4 T7 q
2.2翼型空气动力学相关概念......................................................................:....................... 7
( U- N+ a0 t$ c# q s 2.2.1作用在翼型上的空气动力........................................................................................ 7
1 U8 i7 w8 C2 _( g; a 2.2.2空气动力的影响因素................................................................................................ 93 y- o0 v/ c# }% Q. y) Q
2.3叶片基本气动理论..............................................................................................11- O' d: ^) U w8 Z
2.3.1贝兹理论...................................................................................................................11: w; Z$ `- O- J+ z$ B9 A% H
2.3.2涡流理论..........................................................................................13* t9 p' Z5 F& L9 S
2.3.3叶素理论.................................................................................................14- u) x$ A7 z v) o' x4 c* W
2.3.4动量理论.........................................................................................................164 K. a8 m/ j+ s, y
2.4本章小结................ ................................................................................17
6 b5 `- N# S5 w: U& _第三章叶片设计.......................:...............................................18
" P' j; U+ [# X* d5 q/ w3.1前言.......................................................................................................184 t& B* } h) `8 R
3.2风力机特征风速的确定............................................................................................182 U' s" V) z; \ \3 l/ V% Z7 D( T* z
3.2.1风速的数学表达式..............................................................................................18+ ~4 k* ?2 V7 A4 X* H& s
3.2.2风力机特征风速的推导计算.................................................................................. 201 W! Q& G* N, \* Q% S
3.3叶片基本设计方法....................................................................................................21/ i8 o% X- |7 d! c4 O/ Q- g
3.3.1计算风轮直径模型..........................................................................................21
* ~9 ]0 R) z v+ L3 ?5 A 3.3.2叶片重要参数的选取.............................................................................................. 23
2 l2 W6 T8 G) A d3 i广西大学ZXt学位论文: K" J, W9 b1 j' t, B' w3 z
风办发电机叶t卜iR计研究
4 h8 w+ F" e# \; ^. p 3.3.3叶展形状设计模型..............................................................................................257 K2 b5 S c. Z5 b/ b; D
3.4叶片设计实例.................................................................................................29
+ X0 @8 \. V7 s* \8 X2 T; C 3.4.1风力机特征风速的确定.......................................................................................... 29
% {9 i. M/ C1 V ^2 N1 | 3.4.2叶片重要参数选取..............................................................................................30- L1 r0 c' L$ I$ U
3.4.3叶展形状设计...................:..........................................................................32" ]3 H% V9 ~7 B+ C R$ x
3.5设计结果形象化................................................................................................41- t# V: t; L' ^" x5 z' o. x
3.5.1叶片截面空间坐标的求解...................................................................................... 415 }: V: j) ` j, M, u5 ^
3.5.2叶片计算机3D绘图............................................................................................... 446 D2 b% R2 ?- X; _8 ~# L
3.5.3该3D建模方法的优点........................................................................................... 45
: `' x' L( d+ d5 h- w3.6叶片模型图......................................................................................................... 46& ]$ D" c5 Y& q y
3.7本章小结................................................................................................................47
& Z$ @5 l* u, b3 q1 Z第四章静态气动性能模拟计算........................:.............................. 48
) h7 N) v2 o* a4.1前言.......................................................................................................484 R$ \9 T) G9 u" M3 L5 n
4.1.1有量纲性能指标...................................................................................................... 48
) ]0 [) o1 J# }, I( Q 4.1.2无量纲性能指标、..................................................................................................... 48
7 k# C9 @ ]3 i. z 4.1.3有量纲指标和无量纲指标关系......................................................................48
6 U' S% [$ b$ b4.2叶片气动性能计算...............................................................................................49" t+ f$ L* d* r# p; j t
4.2.1贝茨模型..........................................................................................................49
+ n' l' O2 U1 E) ?2 Z 4.2.2涡流模型—Glauert模型和Wilson模型.................................................49+ w: {# p# m, d2 e/ j6 r a
4.3各种修正系数..............................................................................................54
" E$ @% x4 T' G2 ~ 4.3.1叶片数修正...................................................................................54
- a- j) U/ r* V3 H5 {0 |$ Q 4.3.2翼型修正....................................................................................................55
& }* q. O8 R! Y! @. q& X 4.3.3叶尖修正..........................................................................................................55% ]+ d6 A9 e( E7 |/ T0 k
4.3.4轮毅修正..............................................................................................................56
3 Z! t. V6 h- `3 d4.4模型修正结果................................................................................................56
* P2 L* D' ~' m) e 4.4.1性能修正表..........................................................................................................57" E% \) M8 r$ t8 d/ k. t
4.4.2结果分析..........................................................................................................60
7 Y: H& V2 x; w& I7 |& y2 q4.5本章小结........................................................................................................................ 61, Z" V/ [0 B8 T4 h. V& t
第五章叶片动力学分析........................................................... 62- F' t2 k; c) ^6 y
广西大学祠盯士学位金仑.弋
7 C$ p3 R1 ~0 r. D# c+ O风办发电机叶少卜宝又计笼开乡t3 z2 b4 N. \& e- x2 c' c8 r+ R
5.1前言............................................................................................................62
2 c: p" P7 r4 A7 L' d5.2动力学分析方法............................................................................................................ 62
& X: `1 I. Q6 R+ w3 j% b5.3计算模型................................................................................................................63
: Z9 {: `; x* {; d5.4分析工具................................................................................................................63
1 ]! d' K5 t6 b( K, F5.5分析步骤.............................、.............................................................................65
x3 N2 F# w5 O' ? 5.5.1有限元建模.............................................................................................................. 65. C, m7 ]6 }" `; v( Z2 [) \" O9 S
5.5.2施加约束..........................................................................................................675 Q1 L' w5 [2 T
5.6计算结果........................................................................................................67
- A' Q" O/ o7 K6 R 5.6.1模态计算结果..................................................................................................676 _( v; x! B, @" q- N1 g
5.6.2结果分析..............................................................................................................68/ f% K! I4 d/ r' S8 \
5.6.3对比计算.................................................................................................................. 72
4 b( o6 y; N3 H( I" g 5.6.4计算模型的改进...................................................................................................... 74
. L; l! u, X+ z1 r* l) l 5.6.5结论..................................................................................................................740 s V. j3 c' P ]4 _
5.7本章小结................................................................................................................74
- p- P0 [0 k2 t8 X- R备第六章结论及展望................................................................................ 76
" _. l/ [: o' |6 k8 [7 _6.1结论....................................................................................................................768 }, L. m$ p6 t8 S
6.2论文堕待解决的问题.................................................................................................... 777 J* J1 x. D. f2 Y) b0 T
6.3展望..................................................................................................................77
8 l+ h, } h1 H: j& l ?, |) g参考文献.......................................................................:..78
2 W7 Z/ M& \; B# T7 D# \附录1翼型NACA4412数据.....................................................82
! d1 Y1 A# y$ E- S( U附录2翼型NACA4412气动性能表(RE=500000) ............................................................ 83
7 A, d. F Z' E- I! u附录3翼型NACA4412气动性能图(RE=500000) ................................................. 84
9 [! B6 v0 N+ F4 l致谢.......................................................................................................... 85
: P! \, K1 {. L! h/ Q, j% n- x攻读学位期间发表的学术论文目录................................................................................... 86 |
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