弹簧与传送带专题

ÐÏࡱáþÿ½¿þÿÿÿ»¼ß
°
ðuÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿì¥Á9øR¿5bjbjýÏýÏvd
Ÿ¥Ÿ¥xÿÿÿÿÿÿld
d
d
d
äääÀ***8bœþ„À!¥$
ŽÆ
Tdd.ê‰ê‰ê‰X¤Z¤Z¤Z¤Z¤Z¤Z¤$E¦e¨H~¤]äê‰4‡¶ê‰ê‰ê‰~¤&žd
d
d.gÛ¤&ž&ž&žê‰‚d
0dÊä.X¤&žê‰X¤&žº&žàž:У,”PäX¤.‚‡{$JÉ
Àj*lœü£X¤ñ¤0!¥¤R­¨lœº
­¨X¤&žøtlTd
d
d
d
Ù9_'|NO
&^N˜˜…Q¹[Ðc‰ÿN09_'|˜ÿ109_'|„v¬wöe˜9_'|„v$Nïzý�gvQÖNirSOb›R„v¦~_göeÿOvQÑSub_ØSöeÿ9_›RNý€1uÐgNP�zØS:Nö–b1uö–�zØS:NÐgNP0209_'|„vs^aˆî•˜˜Ù{|˜˜8^åNUSN„v˜úQ°sÿ‰mÊS0R„våwÆ‹/fá€KQš[‹_ÿN,‚(uf=kxb³%f=k³%xegBlã‰0309_'|„v^—s^aˆî•˜˜Ù{|˜˜;N‰c9_'|(Wøvù[MOnÑSuØSSöeÿ@b_w„v›R0R�¦^
0�¦^0ŸRý€ŒTTY›RI{vQƒ[irtÏ‘ÑSuØSS„vÅ`µQ04
09_›RZPŸRN¨RÏ‘0ý€Ï‘„vü~T˜(W9_›RZPŸR„vÇ�z-N9_›R/f*NØS›Rÿv^N¨RÏ‘0ý€Ï‘T€û|ÿN,‚åNü~T˜˜úQ°s0ƒ[g:g0W\¨RÏ‘ˆ[R`0:g°hý€ˆ[R`0ŸRý€sQû|ŒTý€Ï‘l�SÓ~T(WNw�ÿåN€ß[f[u„vü~T”^(uý€›R0Rg㉳QÙ{|˜öeÿ‰Æ~ôRg9_'|„v¨R`Çzÿ)R(u¨Rý€š[tŒTŸRý€sQû|I{åwƋ㉘˜0ŒN0O&^˜ÿO
&^{|R4ls^0Pœe$NÍyÿclTRz˜öeˆ”0öeˆ”l$NÍy0ÿ1ÿ×S›RŒTÐ�¨RR�gÿ×S›RR�g-N„vidæd›R�zØSÿ'Y\
0¹eTÿÑSu(WVirNVOøvT„vöe;RÿÐ�¨RR�g-N„v�¦^ØSSøvù[ШR¹eTŒTù[0W�¦^ØSS0RgsQ.•/fÿN/fVir
0V&^„v'Y\N¹eTÿŒN/fmgsin¸Nf„v'Y\N¹eT0(2)O
&^˜-N„vŸRý€R�g`$ŸRý€sQû|ÿWF=³%EK+³%EP+Qa$ù[WF
0Q„vcknxtã‰ÿaÿO
&^ZP„vŸRÿWF=F·S&^ŸR‡sP=F×V&^ÿF1uO
&^×S›Rs^aˆBl—_ÿÿbÿ§Nu„v…Qý€ÿQ=f·Søvù[ÿcÿ‚YirSOàeR�ÿe(W4ls^O
�&^NÿR(Wte*NR�Ç�z-NirSO·ƒ—_„v¨Rý€EKÿàV:Nidæd€§Nu„vípÏ‘Qg‚YNsQû|ÿEK=Q=EMBEDEquation.3
xQ‹W‹O˜˜ÿ‹O1ÿ(WŸSP[irt-Nÿxvz8hP[N8hP[sQT€„vggHeÏ~/fÌS5uwƒ¤NbcÍS”^0Ù{|ÍS”^„vMRJSèRÇzŒTNb—›Rf[!j‹W{|O0$N*N\tAŒTB(u{�(�9_'|øvÞ�ÿ(WIQÑn„v4ls^ôvh�S�NYŽNY—bk¶r`0(Wƒ[ìNæ]¹�gN‚WôvhS„vúVš[chgPÿóS¹�gN\tC¿lh�S�åN�¦^v0\TBtÿ‚YþV7@b:yÿCNBÑSu°xždv^ËzsSÓ~bN*NteSOD0(Wƒ[ìNç~í~Tæ]ШR„vÇz-NÿS_9_'|•¦^ØS0Rgíwöeÿ•¦^z6q«ˆ•š[ÿN�Q9eØS06qTÿAtNchgPÑSu°xždÿ°xTA
0DY—bkN¨RÿANP¥c所N˜|Þ�0Ç�Nµköeô•ÿz6qã‰d–•š[ÿ•š[ÊSã‰d–•š[GWàe:g°hý€_c1Yÿÿò]åwA
0B
0CNt„v(Ï‘GW:Nm0ÿ1ÿBl9_'|•¦^R«ˆ•š[TAt„v�¦^0ÿ2ÿBl(WAt»y_chgPKNT„vÐ�¨RÇ�z-Nÿ9_'|„vg'Y9_'`¿Rý€0ã‰ÿte*NÇ�zïSR:NÛV*N6–µkegYtÿ00ÿ1ÿ¾‹#ÿtNÿt˜|Ó~b$ÿöeÿD„v�¦^:NVÿÿÿ1u¨RÏ‘ˆ[R`š[‹_ÿ—_00MÿVÿÿÿ2MÿVÿÿÿ0`$00S_9_'|‹Só�gíwöeÿ$ÿN!ÿ„v�¦^øvI{ÿ¾‹dk�¦^:NVÿÿÿ1u¨RÏ‘ˆ[R`š[‹_ÿ—_002MÿVÿÿÿ3MÿVÿÿÿ0a$T€Ëz`$0a$_—_00Vÿÿÿÿ1ÿ3ÿVÿÿÿ0b$00dkî•_NïSôv¥c(u¨RÏ‘ˆ[R`N!kBlúQÿÎN¥cæ‰0Røvù[Y—bkÿMÿVÿÿÿ3MÿVÿÿÿVÿÿÿÿ1ÿ3ÿVÿÿÿ00ÿ2ÿ¾‹9_'|•¦^«ˆ•š[Tÿ.�X[(W9_'|-N„v¿Rý€:N%ÿPÿÿ1uý€Ï‘ˆ[R`š[‹_ÿ—_00EMBEDEquation.3
ÿ2MÿÿVÿÿÿÿEMBEDEquation.3
ÿ3MÿÿVÿÿÿÿ%ÿPÿÿ0c$00ždûQ0ÿTÿ!ÿN$ÿ„v¨Rý€ý�:Nö–ÿã‰d–•š[TÿS_9_'|Rb`Y0Rê�6q•¦^öeÿ9_'`¿Rý€hQèlØSb$ÿ„v¨Rý€ÿ¾‹$ÿ„v�¦^:NVÿÿÿg00%ÿPÿÿEMBEDEquation.3
ÿ2MÿÿVÿÿÿÿ0d$00åNT9_'|8O•ÿ!ÿt»y_!cg0ÿÿv^·ƒ—_�¦^ÿ¾‹dköe„v�¦^:NVÿÿÿ1u¨RÏ‘ˆ[R`š[‹_ÿ—_002MÿVÿÿÿ3MÿVÿÿÿ0e$00S_9_'|8O0Rg•öeÿvQ9_'`¿Rý€g'Yÿ¾‹dk¿Rý€:N%ÿPÿ2ÿ1uý€Ï‘ˆ[R`š[‹_ÿ—_00EMBEDEquation.3
ÿ2MÿÿVÿÿÿÿEMBEDEquation.3
ÿ3MÿÿVÿÿÿÿ%ÿPÿ2ÿ0f$T€Ëzb$^ÿf$_—_00%ÿPÿ2ÿEMBEDEquation.3
MÿVÿÿÿÿ0g$00Ä‹�g0ÊNt^„vØš€‹St˜˜N'a:NNS}Y„virtÕ‹˜˜ÿ}T˜˜ºN—f¾‹:gsQÿç]^r^pbÿêSgS_€uhQb—û‹Âa0†˜O˜˜aÿv^(W4Y�-Nú^Ëzw�^—8^npf„virtþVofŒTÇ�zÿEQRÐ(u$N*Nˆ[R`š[‹_ÿS¾–:NfÿØSA~:N€{ÿMbý€fß[ËyëkÿˆNåNÆ‹4xÿ‹O2ÿÿ2005t^hQýVtü~IIwSÿ‚YþVÿ(Ï‘:NEMBEDEquation.3
„virSOAÏ~N{�(�9_'|NN¹e0Wb—N„v(Ï‘:NEMBEDEquation.3
„virSOBøvÞ�ÿ9_'|„v²R¦^û|pe:NkÿA
0BýYŽNY—bk¶r
`0NagNïS8O•„v{ó~Õ~Ç{ÑnnÿNïzÞ�irSOAÿæSNïzÞ�N{c©”0_ËYöeTµkó~ýYŽN8Oôv¶r`ÿAN¹e„vNµkó~¿lÖzôv¹eT0°s(Wc©”NGSN(Ï‘:NEMBEDEquation.3
„virSOCv^ÎNY—bk¶r`Ê‘eÿò]åwƒ[p`}Yý€OB»y_0Wb—FONç~í~NGS0å‚\CbcbæSN*N(Ï‘:NEMBEDEquation.3
„virSODÿÍNÎNNð�RËYMOn1uY—bk¶r`Ê‘eÿRÙ�!kBR»y0WöeD„v�¦^„v'Y\/fY\ÿò]åwÍ‘›RR�¦^:Ng0ã‰ÿ_ËYöeÿA
0BY—bkÿ¾‹9_'|‹S)Ï‘:Nx1ÿgkx1=m1g`$cCv^Ê‘eTÿCTNÐ�¨RÿATNÐ�¨Rÿ¾‹BR‰»y0Wöe9_'|8O•Ï‘:Nx2ÿgkx2=m2ga$BN�QNGSÿhˆ:ydköeAŒTC„v�¦^:Nö–ÿCò]M–0RvQgNO¹p01u:g°hý€ˆ[R`ÿNRËY¶r
`øvÔkÿ9_'|'`¿Rý€„vžXRÏ‘:N³%E=m3g(x1+x2)ÿm1g(x1+x2)b$CbcbDTÿS_BR»y0Wöe9_'|¿Rý€„vžXÏ‘NMRN!køvTÿ1uý€Ï‘sQû|—_EMBEDEquation.3
c$1ub$c$_—_EMBEDEquation.3
d$1u`$a$d$_—_EMBEDEquation.3
e$ü~NN‹OÿÎN-NwúQ9_'|Õ‹˜˜„vnx/fùW{Q0­‹Ã~f[uirt`ô~ŒTÍSf0_ÑSf[u„vf[`N\oý€„vOÀyÕ‹˜˜09_'|NøvÞirSO„gb„vû|ß~@bhˆ°súQeg„vШR¶r`„vØSSÿ/ff[-uEQRÐ(uirt‚iõ_ŒTĉ‹_ÿ[r˜,{ŒNš[‹_0¨Rý€š[t0:g°hý€ˆ[R`š[‹_0¨RÏ‘š[t0¨RÏ‘ˆ[R`š[‹_ÿç]™Y㉳Qirt˜0½eU\ê«ŽMbNS„v^–zzô•ÿS_6q_N/f:SRf[uý€›R:_1_0Éb'Yî]Ý�
0�ÔbºNMb„vNÍy8^ĉ˜˜‹W0àVdkÿ9_'|Õ‹˜˜_N1\b:NØš€irt„vNÍyÍ‘‰˜˜‹W0€Nÿ9_'|Õ‹˜˜_N1\b:NØš€irt˜˜-NN{|ìrwQyrr‚„v€˜˜‹O30‚YþV@b:yÿPÒ‰:N30°„v®v&^Г:g„v®v&^ËYÈ~÷~'}ÿNåNR`š[�¦^vÿ2.5m/sÐ�¨Rÿ$Nn�øvÝ�LABÿ5mÿ\(Ï‘mÿ1kg„virSOàeR�0W{�{�e(WAYÿå‚irSON®v&^ô•„v¨RidædàVpe¼ÿEMBEDEquation.3
ÿ(ÖSgÿ10m/s2ÿirSOÎNAÐ�¨R0Rÿ,®v&^ù[irSO@bZP„vŸR/fY\?a$irSOÎNA