ࡱ> QSP'` RD4bjbjS@rr P((((xxx!!!8!<",6@"@"(h"h"h"###$6&6&6&6&6&6&6$Q9h;NJ6-x&##&&J6((h"h"<w6],],],&(8h"xh"$6],&$6],],V4@`x4h"4" P0|!)@4 5T606L4T<5+<4"4&<x4#h$J],Z$<${###J6J6+^###6&&&&(((((( 'Y/_^W9hVFh_ޏcSRyr'`Rg u (WSN*zz*)Y'Yf[ *zz[*f[b WSN -NV ?ex210016) Xd : [N:g9hǑ(uVFh_ޏcv~g 9hN,Ǒ(uh~N:gvޏ 1uNY N[~g-N}w cR^RM vQޏchbSv}wO~gR^SS [N/_^'YvW ُy}wSSRf:Nf>f0:NRgdk{|ޏc~gvSRyr'` ,ge(WPATRAN/NASTRANsX N[geW0WHeޘ:g(W9hDяv;N~gۏLN gPCQ^!j0;NxvzNV:gVRbb_r[9hTYR^ NN ۏ [h}wRM bvq_T TekN-N.Y&^AhagN N&^Ahag$Ny`Q NhSRyr'`v:S+R0Ǐ@\!jWv gPCQRg ;`~QNNh}wvSSĉ_ [N{|f ۏ q_Tޏch Nv}wR^0vMR[NُyYޏc~g}RMvxvz]\O]~ g_Ybg0e.s[1]0[2]\ON㉐gelvvsQxvz vQ~hf}RMSޏcNPgeg^vq_T'Y NǏNNv{O-NޏcNb_rkĉR l gS fQ[E] z~g-N~gvR^[}RMvq_T0_N g_Yxvz\OǏ gPCQRg[3-8] [^!jelۏLN FO{vW,g/fޏcb__v[{USv~g [[E] z~gޏcMOv:N\0,ge~TgeW0WHeޘ:gv:g:_^!h8h]\O (WPATRAN/NASTRANsX N[`я9hMOv;NSRgNۏLN gPCQ^!j @w͑[N9hޏchv}wR^`Q0;`~QNNh}w~gR^SSvĉ_0 2 gPCQ^!j ޘ:g'YϑǑ(uN YTPge v00XI{N9YB\~gg:N;N (WZP~gRge N,/f\vQ{S:NXCQAhagNShagI{R(uhCQbTMOǑ(uqQpvޏ0FOYg͑p[[cMOޏcNvSR`QY9hMOn Nel1uN NS fQh0ƔI{ޏcNvSRyr'` N_Qnav{~g0Vdk,ge-N[:g0:gThR+R^!j (W:g NZPQ:g[cS `h!jW\:gN:gޏcweg :g Nv}wǏh O~:g N SNS fQhvSRr`0 2.1 :gN:gv^!j :gv;NNGW1ust~~bgTz9YB\~g~b0vQ:g:NUSWW_~g 1uQ0Y0QYǏ!nkNS-N.Yvkgb (W:g9h QceQ-N.Yv[cS-N (Wv NǑ(uScbjRhN-N.Yޏc0 ,geSNhQ:g!jW-N*bSN`я]vNR ZPQ9hDяv~~g (Wy9h܏vMO\ON{S weuN:gMRT0v0X0I{~gǑ(uVpI{SgCQQUAD4!jb vQMOnS[E~gNQUO-NbvMOn0:g NvFhNS:g-NvAhagNǑ(uhUSCQ^!j0 Se.s cs^ _LYޏcN O}w{vN*N㉐gel[J]. *zzf[b 1994 15(3)310-317 _s _/cHQYޏc YTPgeg O}wv{[J]. qq\'Yf[f[b 2005 29(2)178-181 C.Yorgun, S.Dalci, G.A.Altay. Finite element modeling of bolted steel connections[J]. Computers and Structures, 2004, 822563-2571 Jeong Kim, Joo-Cheol Yoon, Beom-Soo Kang. Finite element analysis and modeling of structure with bolted joints[J]. Applied Mathematical Modelling, 2007, 31 895-911 K.Schiffner, C.Droste gen.Helling. SIMULATION OF PRESTRESSED SCREW JOINTS IN COMPLEX STRUCTURES[J]. Computers & Structures, 1997, 64(5) 995-1003 ߏ ZW "#]N YTPgeYc:ghޏc gPCQRgelxvz[J]. *zzf[b 1998 19(4)499-502 u Vo ~NxI{ YTPgeB\gޏc}wRM{elxvz[J]*zz{b/g 2006 36(3) 97-101 s u N\ gYޏcRY4xOW:_^v] zelxvz[J]. *zz{b/g 2006 36(2)120-123 -NV*zzxvzb YTPgeޏcKbQ[M]SN*zz]NQHr>y 199474-11$&*,.RVZxz|8 ϸoXC.C(h4vhnAB*CJOJQJaJo(ph(h4vhZkDB*CJOJQJaJo(ph,h4vhnA5CJKHOJQJ\]aJo(,h4vhm 5CJKHOJQJ\]aJo(h4vPJ]aJo(hs7h4vPJ]aJo(hs7h=PJ]aJo(h(SPJ]aJo(,h4vh=B*CJOJQJ^JaJo(ph333(h4vh=B*CJOJQJaJo(ph333hEhm 5CJ$aJ$o(hEhZkD5CJ$aJ$o(&,| FV{f;d4$@&WD`gdE@&WDXD2YD2`gdE WD`gdE@&WDXD2YD2`gdd VDWD^`gdE5$dVD]^a$gdE $YD2a$gd=$a$gd=$XD2YD2a$gdE 3>4B48 B V  v x vfvfT@&hEhm 5CJKHOJQJaJo("hdhm CJOJPJQJ]o(h4vhJJ<OJPJQJaJo(h4vhfOJPJQJaJo(h4vhm OJPJQJaJo(/h4vhm 5KHOJPJQJ\]aJho($hdhZkDB*CJOJQJo(ph(h4vhZkDB*CJOJQJaJo(ph(h4vhnAB*CJOJQJaJo(ph(h4vh=@HB*CJOJQJaJo(ph * :  FHJV.0ϷϷϫϝۋ}mbmTDh=hm CJOJQJaJo(hEhm 5KHQJaJhE5KHQJaJhEhm 5KHQJaJo(h=hm 5QJaJo(#hEhm 5CJKHOJQJaJhEhm CJH*aJo(hEhr0CJaJo(hEhBrCJaJo(hEh CJaJo(hEhm CJaJo(&hEhm 5CJKHOJQJaJo( hE5CJKHOJQJaJo(0d"F6(f(()+gdn$*$a$gdbW`gdd <d4$gdm WD`gdE;d4$@&XD2YD2gddrtt  (,8:HJZ\bdtvz|hTVhdhn$CJaJhdhbWCJaJo(hdhn$CJaJo("hbWhn$CJOJPJQJ\o("hbWhm CJOJPJQJ\o(h=hm CJOJQJaJhE5CJQJaJo(>:<BDJLnx((l(n(v(|((((()b)))))**Z+xlhdhdCJaJo(hdhd5CJ\aJhs7h=KH]aJo(hv-h=5CJPJaJo(hv-hv-5CJPJaJo(hv-5CJPJaJo(hv-hd5CJPJaJo(Uhdhn$CJaJhdhbWCJaJo(hbWCJaJo(hdhn$CJaJo((0 0ޘ:gKbQ 0;`YOޘ:gKbQ,{3Q N [M]SN*zz]NQHr>y 199729 _~9_'`Rf[,{ NHr NQ[M]SNؚI{YeQHr>y 199032 0ޘ:gKbQ 0;`YOޘ:gKbQ,{10Q[M]SN*zz]NQHr>y 20001006 The Mechanical Analysis of a Wing Root Surrounding Frame Connectoin Which Has a Large Camber Airfoil Zhao Qun (College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China) Abstract: The bolt group is usually used at the wing root structure if it's a surrounding frame connection structure. For load is destributed by the stiffnesses in a statically indeterminate structure, on the jointed-bolts at a wing root, loads are changed by the different stiffnesses, and the difference is more notable if its airfoil has a large camber. In this paper, the main structure near a new kind of ground effect aircraft s wing root is modeled using PATRAN/NASTRAN software to analyze the mechanical characteristic of this kind of connection structure. Because of the shape of airfoil, the stiffnesses at wing root are not uniform, this paper mainly investigates its effect on the load distribution of the bolts. Meanwhile, load situations of the bolts are also compared when using a central wing with stringers and without one. The regulation of bolts load distribution are given out by the finite element analysis of the local model, which is valuable for wing root connection design of similar light aircrafts. Key words: Structural analysis; Load distribution; Finite element; Camber; bolt; Airfoil; Stiffness      PAGE 6  PAGE 1 *zz[*f[b,{kQJ\xvzuf[/gOe eQ\O!jHr )))*233333333333'gd~ + & FT^Tgdn$+ & F^`gdn$ 8tVD^tgdv-7$tVD]^ta$gdv- $YD2a$gd=6 $]^gd?6 $XD2YD2]^gdv-Z+f++,J,--,...//00f1z111222:3X3Z3p3r3333333333333մ飏|tphdhdhdhdh3xjh3xUhm hn$hn$o($hdhdB*CJPJaJhph'hdhdB*CJPJaJho(ph!hv-B*CJPJaJho(phhdhd5CJ\aJ$hdhdB*CJKH]aJph'hdhdB*CJKH]aJo(phhdhdCJaJo(hdhdCJaJ$33333333333333333444444 4"4$4&464<4>4@4B4D4󪦢hm h~hdh3xh2lhF*CJaJo( hECJo(hvCJaJo(h2lCJaJo(h3CJaJo(h2lmHnHu hF*o(hdmHnHuhF*jhF*U 333333444444 4"4$4$& #$+D/4$a$h]h&`#$`gd2l$ & #$+D/]a$ $ xa$$ & #$+D/4$a$$ & #$+D/^a$$4&4(46484:4<4>4@4B4D4 + & FT^Tgdn$ hh]h`h  & #$+Dd2eJ &#$+D/ Q00&P 0p12PP/R :pE<0. A!n"_#$%nS BH@H cke$1$5$a$CJKH_HmH nHsH tH^@^ h 1/$$$ & F >9D@&H$a$ CJKHPJh@h h 2=$$$ & F 7$8$9D@&H$XDYDa$KHPJB@B h 3 $$$ & F 1@&a$F@F h 4$$$ & F@&a$ OJPJQJJ@J h 5 $$ & Fdx"@&5CJF@F h 6 $$$ & F@@&a$CJJ@J h 7 $$ & Fd@@@&5CJR@R h 8 $$ & Fd@@@&CJOJPJQJN @N h 9 $$ & Fd@@@& OJPJQJ$A@$ ؞k=W[SOFiF nfh\l_(uH*FOF Reference*$@&G$a$5PJjOj Text of Reference+$ & Fda$CJ_HmH nHsH tH$Oa$ f,PJnOn Text of Reference 1-$ & Fda$CJ_HmH nHsH tH0O0 -NeSe.s.5DOaD "/ edWDXDd`PJ\\O\ Text of -NeSe.s%0 & F ZWD^`HOH Text of -NeSe.s1 ZN('!( ybl_(uCJaJ*2* ybleW[3$a$8YB8 ZkDech~gV4-D M TORT ZkD\OUSMOe Ty&5$5$9DH$]^a$CJPObP feh&6$<5$9DH$]^a$5CJNOrN JJ<eXd(7$d5$9DH$]^a$CJTOT JJ<esQ.͋,8$d5$9DH$]^a$CJLOL m ecke9$d4$7$8$9DH$a$ CJOJQJ TOT m \h1&:$d4$7$8$9DH$a$ CJOJQJ ,O, m \h2;5CJ.O. m h4Y<$a$5CJ.O. m Vvf=$a$CJZ^@Z m nf(Qz)>$dd1$5$[$\$a$CJKHOJQJ^JaJff m QT[]H$Tf^`Wa$CJ>O> Qbab_cptermstyle15\""@>Vuz#+ x2i#\3Xf i     #05 u;;+  <0 <0 <0 <0 0 *0 +0 +0 +0 +0 +0 +0 +0 +0 +0 +0  +0  +0 66078+0+0@'0ȑ00@'0ȑ00@'0ȑ00@'0ȑ00@0 @0 @0 @0 @0@0@0 @0 @0 @0 @0@0@0 @0 @0 @0 @0 @0 @0 @0 ȑ00P00ȑ0 >Vuz#+ x2i#\3Xf #00050 0 00u 0 ;0;0+0 0 <0 <0 <0 <0 0  *0 +0 +0 +0 +0 +0 +0 +0 +0 +0 +0  +0  +0 j00 0%0OZ00lZ00O? 0$0O <?BMOR8 VZ+3D4 )3$4D4 B4 $&R!!H(@H 0(   0(  B S  ?"\#]#^#_l#`#a,#bl#  " N _ _ # ! , U d d #8*urn:schemas-microsoft-com:office:smarttagsCity9*urn:schemas-microsoft-com:office:smarttagsplace=*urn:schemas-microsoft-com:office:smarttags PlaceType=*urn:schemas-microsoft-com:office:smarttags PlaceNameB*urn:schemas-microsoft-com:office:smarttagscountry-region hv!')+-/56>?@ACVY[twyz!$%("%*+ wx#$)*OUZ[`aiqsz|t}#$DHST+/0STs  x  #=>x"+z1w1:hT[_"#+i  #33333#+ _# # #,KS l+a+ZczTh^`56CJOJQJo( h^`56CJOJQJo(. ^`56CJOJQJo(.. ^`56CJOJQJo( ...  ^`o( .... ^`o( ..... ^`o( ...... `^``o(....... 00^0`o(........^`56CJOJPJQJo([] H\H^H`\)\^`\.\^`\.4\4^4`\) \ ^ `\.| \| ^| `\. \ ^ `\)\^`\.^`56CJOJPJQJo([] H\H^H`\)\^`\.\^`\.4\4^4`\) \ ^ `\.| \| ^| `\. \ ^ `\)\^`\.,Kl+aZc@î        Ym         @@ @r3rc43?ABCDEFGIJKLMNORRoot Entry F@0|T1Table!<WordDocumentS@SummaryInformation(@DocumentSummaryInformation8HCompObjm  FMicrosoft Office Word ĵ MSWordDocWord.Document.89q