理论力学全套解疑01

δ7001~5001AB=5m7005~5005=δ≤0.01mF1-3ab1-3cdAFCBC1-31-4aF1F2∆l21FF′′21FFFF′===′211-4bAF11FF−=′2F′2F1F′1F2F′21-4F1F21-8a1-81-8b1-8c1-9PTPTTT′1-91-10aF1F21-101-10cd1-10ab1-11F1F2ABCABBCBF1F2F1F2A1-12a1-12bfRF1F2F1F2R1-121-12bfRF1F2cF1F2RF1F2RRF1F2dF1RF2F2F1RF2=F1+RRF2F1R=F2F1(e)RF1F2R=F1F2R=F1+F2+F3=01-13ab1-13(c)(d)R=F1+F2+F301-13ABCF1F2F31-14a1-141-14aF1BF1F2R12bABCDR12F3F1F2F3R12F3R12F31-151-15aABABABbBCBCBCBCcABACABACF1F21-16aP1P2)1-16bQ1Q21-16c1-16[1-18(1)(6)]1-18(1)AB1-18(1)aABBBB1-18(1)b1-18(1)1-18(2)1-1831-1841-1851-1861-18(1)cACC1-18(1)dBACAC1-18(1)eAABAC1-18(1)f)1-1811-18(2)(a)(c)ABAAYAXAB1-18(2)(b)(d)1-1821-18(3)(a)AAXAYAmA1-18(3)(b)1-1831-18(4)(a)BCBCBCAXAYA1-18(4)(b)(c)1-1841-18(5)(a)AOOACPOAOAOA1-18(5)(b)1-1851-18(6)(b)A(c)A(c)(d)B(c)(d)(e)DE(d)1-18(6)1-1861-19aABCDABCCDbcd1-191-19(a)ABCDABCCD1-19efgheijfg1-19bcdCDABCQCDCDABC1-19cdCDCDABC1-20aPADDb1-20Dcd1-21ACEFP1-21aACCEACCEACCE1bACACFAXAYABFNBFCACXCYCCECECEPNDCCECCYX′′′′′′CCACCX′CY′CX′CY′CXCYCCECCCYX′′′′CCYX′′′′)CCYX′′′′′′2ACcACCCACbXCYCX′CY′CACCCECCCYX′′′′bCEb3CEdCECCECCYX′′′′CCYX′′′′′′CECACCX′CY′CbACbbcACACC(b)CXCYC(c)CECCCCYX′′′′CCCC,YYXX′′=′′=(b)CCCCCyCCCCxYYYYFXXXXF′=′′=′−′′=Σ′=′′=′−′′=Σ,00,00XCYCX′CY′CCCCCYYXX=′=′CCCCCCYYYXXX=′=′′=′=′′bcCCCXYX′′′′YCbdCECX′CCCCYYX′′′′′′′ACCEACCEC1-21aCQ1-21eACCEACCE1CACCEC1-21f1-21XCYCCACX′CY′CACC!XCYCX′CY′CCCYX′′′′CECCCECCYX′′′′′′CCYX′′′′CCYX′′′′′′2ACACCEgQCACC3CEACCEhQCCECfgACCXCYCCCYX′′′′(f)CAC(g)CECQ(f)C0sin,00cos,0=′−−′′==′−+′′=∑∑CCyCCxYQYFXQXFααXCYCX′CY′CCCCCYYXX′=′=,ααsincosQYYQXXCCCC+=′′−=′′11-22aCOAbOABCOOcOO1-2221-22aOAOCOCOA31-22aOAOCOCdOAeOAfdefXOYOOANBOAX′OY′OOAOOYX′′′′T′ON′BOAT′CND1-22