改善齿轮传动性能的计算设计方法

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1、ONTHECOMPUTATIONALDESIGNMETHODSFORIMPROVINGTHEGEARTRANSMISSIONPERFORMANCESFlaviaChira】，MihaiBanica1,DinuStoicovici1ubm.roIAssoc.Prof”PhD.Eng”NorthUniversityofBaiaMare，e-mail:Flavia.Chira^Abstract:Thecomputationaldesignpermittohavethepossibilityofchoosingthegeometricalg

2、earsparametersnotinrelationwiththestandardgearrackbutinrelationwiththerequestofthebeneficiary.Theparametricaldesignpermitalsotostudywhatarethebettervaluesofthedesigningparametersforobtaintheoptimalsolutionforthefunctionalparametersofthetransmission.Thepaperpresentsomea

3、spectsaboutthefacilitiesofferedbysomeoriginalcomputerapplication,resultsoftheauthor'sresearch,tooptimisethenonstandardgears，consideredasasolutionforimprovingthegearstransmissionquality.Itbecameveryeasytodesign，forthesameinitialdate,symmetricgears，directorinvertedasymm

4、etricgears，finalfindthebetterfortheobjectivefunction.Keywords:computational,direct，gear，design,asymmetric1.INTRODUCTIONInvolutesgearsarethemostfrequentbecauseofthealreadyknownadvantages.Asymmetricgearscharacterizedbyasymmetricinvolutesprofilesofthetoothareusedonlyinthe

5、lastfewyears.Becausethegreatnumbersofgeometricalparameters,inrelationwiththeclassicalgears，designingandmanufacturethosespecialgearsitismoredifficult.Byusingthecomputationalmethodthisinconvenientcanbesolvedwithoutsignificantsupplementarycosts[5]，[6].Asymmetricgears，form

6、edofgearwheelswithasymmetricinvolutesprofileteeth，addfurtheradvantageslikeanincreaseintheloadcapacity，adecreaseinweight，areductioninvibrations，anincreaseinefficiencyanddurability[4].Theratiobetweenthediameterofthebasecircleoftheinvolutesinactiveprofileandthediameteroft

7、hebasecircleoftheinvolutesactiveprofilerepresentsthe“asymmetrycoefficientofthetooth”[3].Inrelationwiththosemostimportantparametercanbedefined:thedirectasymmetricgear，forwhichthe“direct”profileistheactiveoneandtheasymmetrycoefficientishigherthan1;theinvertedasymmetricge

8、ar，forwhichthe“inverted”profileistheactiveoneandONTHECOMPUTATIONALDESIGNMETHODSFORIMPROVINGTHEGEARTRANSMISSIONPERFORM