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《Reconstruction Design Methodology》由會員上傳分享，免費在線閱讀，更多相關(guān)內(nèi)容在教育資源-天天文庫。
1、Chapter4ReconstructionDesignMethodologyThischapterpresentsamethodologyforthesystematicreconstructionofdesignconceptsoflostmachines.Designspecificationsofthetargetsub-jectareaddressed.Variousatlasesofgeneralizedkinematicchainsarein-troducedandprovidedastheinclusivedatabanksforthegenerationoffeasibles
2、pecializedchains.Theconceptofspecializationisfurtherpre-sentedforidentifyingallpossiblereconstructiondesigns.Anexamplere-gardingtheconceptualdesignofplanetarygeartrainsforinfinitelyvarioustransmissions[1,2]isadoptedsimplyforthepurposeofillustratingeachstepofthedesignmethodologyindetail.4.1Introducti
3、onOneofthemostdifficulttasksinresearchoflostancientmachinesistoreconstructtheoriginaldesigns.InpastyearssomereconstructiondesignsoflostmachinesinancientChinawerebroughtintoexistencebasedonliteraturestudies,andwithorwithoutthehelpofmodernscienceandtechnology.However,thesede-signsweremainlybasedonpers
4、onalknowledgeandjudgment.Theproc-essreliedonindividualexperiences,andtheresultsmaynotbesolidlyfunctionalandproven.Sofar,noexistingmethodisavailabletodirectlyguideresearcherstoreinventlostdesigns.Thepurposeofthischapteristopresentastep-by-stepprocedureforthesystematicreconstructionofallpossibletopolo
5、gicalstructuresoflostmachines,subjecttodesignrequire-mentsandconstraints.Thisprocedureutilizestheideaofcreativemecha-nismdesignmethodologytoconvergethedivergentconceptionsobtainedfromliteraturestudiestoafocusedscope.Mechanicalevolutionandthevariationmethodarethenappliedtoobtainfeasiblereconstruction
6、designsthatmeetthescienceandtechnologystandardsofthesubject’stimeperiod.[2–4]Thismethodologydoesnotattempttoreconstructtheoriginaldesignforaspecificlostmachine.Itspurposeistosystematicallygenerateallpossibledesignconcepts,thatis,thetopologicalstructureofmechanisms9596Chapter4ReconstructionDesignMeth
7、odologyofthetargetlostmachine.Ifthedefinedand/orconcludeddesignspecifi-cations,topologicalcharacteristics,anddesignrequirementsandcon-straintsarefeasible,oneoftheresultingreconstructiondesignsshouldbe
