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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 b- C' l5 u' y% h# v1 d9 a2 e第一章绪论....................................................................1
7 h, _' K: j3 R/ e: Z' ~5 s; j1.1本课题研究背景.....................................................................................................10 U; `0 A/ o; u" t0 p: O
1.2国内外研究技术现状............................................................................................. 2% h% r, H3 E3 O: e( d. A% I0 z/ t
1.3本课题研究内容........................................................................................................ 2
* Q) N. F: w/ | l# J第.章基本概念与基本原理............................................................................................... 5$ C* K5 P5 u0 ]3 D9 H
2.1翼型结构基本概念............................................................................................5
( {# @4 b5 w7 f/ g: V 2.1.1翼型几何参数....................................................................................................5
0 N" F$ [2 M# q. R 2.1.2翼型介绍................................................................................................77 |" ~0 W4 }( `, P
2.2翼型空气动力学相关概念......................................................................:....................... 71 Y( ]5 d! E& ^
2.2.1作用在翼型上的空气动力........................................................................................ 7
3 c: x( x, M- ? 2.2.2空气动力的影响因素................................................................................................ 9) G I$ j4 K7 s( U7 j0 h7 ?
2.3叶片基本气动理论..............................................................................................11
# ^" [% K- B7 T- J0 x& a 2.3.1贝兹理论...................................................................................................................11
- H1 c; r4 J9 n7 ]' r/ T 2.3.2涡流理论..........................................................................................13
4 w7 Y0 E6 F& D9 w' U% g4 N' { 2.3.3叶素理论.................................................................................................141 t$ k% U: A2 o$ ^9 [. @
2.3.4动量理论.........................................................................................................16
m$ ]& [5 n3 k7 y5 |. V* i2.4本章小结................ ................................................................................17
1 n+ j6 i/ @ O$ e$ b& j. i第三章叶片设计.......................:...............................................18- p3 T- A( \: e: R, M; Q
3.1前言.......................................................................................................183 H: [0 V6 ~6 B7 J
3.2风力机特征风速的确定............................................................................................18" ]$ c1 I7 R' H G
3.2.1风速的数学表达式..............................................................................................187 K. J4 r% }7 J# Q" o s. \
3.2.2风力机特征风速的推导计算.................................................................................. 20& W2 T G# R% c) a/ }
3.3叶片基本设计方法....................................................................................................21
0 I* D: I9 K5 y8 D* F 3.3.1计算风轮直径模型..........................................................................................219 @" ]! R6 ^- E; p J; n
3.3.2叶片重要参数的选取.............................................................................................. 23- P+ @9 P% m5 n+ l! D2 Y
广西大学ZXt学位论文1 t& J5 J4 F4 o+ m% W( \+ k
风办发电机叶t卜iR计研究
# a* d6 | R8 ? 3.3.3叶展形状设计模型..............................................................................................25
6 i8 T* f" r$ q3 H3.4叶片设计实例.................................................................................................294 Y7 z' h2 Y; X6 A& i9 t' U
3.4.1风力机特征风速的确定.......................................................................................... 296 O7 k5 }, }# d+ _0 a9 b
3.4.2叶片重要参数选取..............................................................................................30& R- C5 ^) i0 L
3.4.3叶展形状设计...................:..........................................................................32* N2 }) V e7 t, v/ l- S
3.5设计结果形象化................................................................................................41
/ X* t6 C$ d: }, q 3.5.1叶片截面空间坐标的求解...................................................................................... 41
, ~% a! |% f" D 3.5.2叶片计算机3D绘图............................................................................................... 44
- |1 p v6 \; ?& j# o! `4 \) ^ 3.5.3该3D建模方法的优点........................................................................................... 45
9 {2 f3 v8 @: U% J) O7 l' Q: l1 p( J3.6叶片模型图......................................................................................................... 46& D5 R% p0 i0 e, D( y
3.7本章小结................................................................................................................47$ f! Y6 P7 _- B l/ h' V: s" [
第四章静态气动性能模拟计算........................:.............................. 48
; s% k }- \% R6 m0 @4.1前言.......................................................................................................48! o- D R" ^, K
4.1.1有量纲性能指标...................................................................................................... 48
) b" {3 P; L! H% A3 L) A2 Y. R 4.1.2无量纲性能指标、..................................................................................................... 48/ i6 |& ]7 ^. S
4.1.3有量纲指标和无量纲指标关系......................................................................48
% ?6 B4 e o( ]5 N4.2叶片气动性能计算...............................................................................................49
3 V& C4 I5 \) E0 C v 4.2.1贝茨模型..........................................................................................................49$ |3 m! R; n6 {+ D
4.2.2涡流模型—Glauert模型和Wilson模型.................................................490 M% v. M, s- ?8 }9 d: v" |
4.3各种修正系数..............................................................................................546 _0 ]1 P4 z2 d( j1 Z% K! X
4.3.1叶片数修正...................................................................................54$ C: R8 v2 A2 N9 }5 ^4 X/ s
4.3.2翼型修正....................................................................................................55
, {3 W+ Z# j7 r5 w/ | 4.3.3叶尖修正..........................................................................................................55' M, [, K9 e/ t# u
4.3.4轮毅修正..............................................................................................................56& w% s# T* b, S# R
4.4模型修正结果................................................................................................56
0 m8 E) f8 w# L1 j) x 4.4.1性能修正表..........................................................................................................57
0 Y# t9 ?8 E" g. T+ Y9 r0 d$ x 4.4.2结果分析..........................................................................................................60+ W! G- R: @5 H
4.5本章小结........................................................................................................................ 617 T3 M% ~1 X7 J t
第五章叶片动力学分析........................................................... 62
1 n$ @, P ], I% C* a, Y' A- A广西大学祠盯士学位金仑.弋
9 m7 B9 p: ?1 o" n6 B; J风办发电机叶少卜宝又计笼开乡t% M* _. m; Z" n K, h6 K7 q/ f. J/ ^
5.1前言............................................................................................................62% ^' J/ w0 Y! W6 n7 t
5.2动力学分析方法............................................................................................................ 622 ^1 b8 x* a& W; M
5.3计算模型................................................................................................................63
* k J7 A! F( `* `" G5.4分析工具................................................................................................................632 X. i7 s3 i" h0 e5 Z3 C1 n" d3 l0 l
5.5分析步骤.............................、.............................................................................65) [4 t1 T6 ~% A4 E
5.5.1有限元建模.............................................................................................................. 65
" C- D1 f6 U- L* J7 M 5.5.2施加约束..........................................................................................................67% P- t9 s3 p% q+ {" N u
5.6计算结果........................................................................................................67
; E9 s0 u5 |8 p 5.6.1模态计算结果..................................................................................................67' r5 t- _* m/ O4 A# k. w
5.6.2结果分析..............................................................................................................68
) \! Z U# t) {2 G 5.6.3对比计算.................................................................................................................. 72+ E N1 Z& L( ?' m3 C, g
5.6.4计算模型的改进...................................................................................................... 74* y9 b; M4 ]5 g; h; v V0 {
5.6.5结论..................................................................................................................744 F9 Y1 ^# o6 U. O
5.7本章小结................................................................................................................74
0 \* x5 }. y" G! f* u备第六章结论及展望................................................................................ 763 }8 e2 M8 g+ g; \7 r N: ?
6.1结论....................................................................................................................76+ b! A2 O# ~( w
6.2论文堕待解决的问题.................................................................................................... 77
& R3 k) }' y2 k* ?( C! H7 v6.3展望..................................................................................................................77* w3 P9 Q) h) M$ N5 \8 e7 ?) f
参考文献.......................................................................:..78
7 ^' X' J% d7 e) Z附录1翼型NACA4412数据.....................................................82
/ B8 v& A/ n: b4 q' |. L, l附录2翼型NACA4412气动性能表(RE=500000) ............................................................ 839 {* Y( R* ?# s$ y2 r4 P6 @' `
附录3翼型NACA4412气动性能图(RE=500000) ................................................. 84$ ]& {9 U2 Z" Q: F( x% p0 N
致谢.......................................................................................................... 85
0 V9 U+ ]& _# h/ D, ~! t2 ], D" P# D攻读学位期间发表的学术论文目录................................................................................... 86 |
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