資源描述：
《斜拉索耦合振動(dòng)模型及其參數(shù)分析.pdf》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在行業(yè)資料-天天文庫(kù)。
1、第32卷第3期深圳大學(xué)學(xué)報(bào)理工版VoI．32No．32015年5月JOURNALOFSHENZHENUNIVERSITYSCIENCEANDENGINEERINGMav2015【土木與建筑工程／ArchitectureandCivilEngineering】斜拉索耦合振動(dòng)模型及其參數(shù)分析劉海濤，魏明海，林坤，肖儀清1)哈爾濱工業(yè)大學(xué)深圳研究生院，深圳518055；2)沈陽建筑大學(xué)營(yíng)造與工程管理系，沈陽110168摘要：考慮支撐構(gòu)件對(duì)斜拉索參數(shù)振動(dòng)的影響，從整體振動(dòng)角度研究斜拉索的非線性參數(shù)振動(dòng)特性，提出一個(gè)耦合索支撐結(jié)
2、構(gòu)模型．該模型既考慮了斜拉索的幾何非線性，也考慮了支撐構(gòu)件的運(yùn)動(dòng)對(duì)斜拉索振動(dòng)的影響．應(yīng)用多尺度法對(duì)該模型進(jìn)行攝動(dòng)分析，得到該模型參數(shù)振動(dòng)時(shí)的激勵(lì)頻率及穩(wěn)定區(qū)域邊界，討論模型質(zhì)量比、剛度比和傾角等參數(shù)對(duì)幅頻響應(yīng)及穩(wěn)定性的影響．研究表明，索的非線性參數(shù)振動(dòng)特性并不隨質(zhì)量比和剛度比單調(diào)遞增，而是存在某一臨界值，使索的非線性參數(shù)振動(dòng)特性最大化；隨著傾斜角度的增加，索的非線性參數(shù)振動(dòng)特性是單調(diào)遞增．關(guān)鍵詞：結(jié)構(gòu)力學(xué)；索支撐結(jié)構(gòu)；斜拉索；耦合模型；幅頻響應(yīng)；參數(shù)振動(dòng)；非線性振動(dòng)中圖分類號(hào)：TU311．3文獻(xiàn)標(biāo)志碼：Adoi：10．
3、3724／SP．J．1249．2015．03231CoupledvibrationmodelofcablesanditsparameteranalysisLiuHaitao，WeiMinghai甜，LinKun，andXiaoYiqing1)HarbinInstituteofTechnologyShenzhenGraduateSchool，Shenzhen518055，P．R．China2)DepartmentofConstructionandEngineeringManagement，ShenyangJianzhuU
4、niversity，Shenyang110168，P．R．ChinaAbstract：Consideringtheeffectsofcable-supportedstructuresoncableparametricvibration，thispaperpresentsananalysisofnonlinearparametricvibrationandthechaoticdynamicsofacableusingacoupledcable-beammodelinwhichboththecoupledbehaviorb
5、etweenthebeamandthecableandthegeometricnonlinearitiesofthecablearetakenintoaccount．Byapplyingthemultiplescalemethodtothemodeldirectly，weobtainthefrequencyresponseofcablesandstabilityconditions．Theeffectsofthemassratio，stiffnessratio，andtheinclinedangleofthecoupl
6、edmodelarethenevaluated．Theresultsshowthatthepropertyofnonlinearparametricvibrationofcablesisnotincreasingmonotonouslywiththemassandstiffnessratios．Thereisacriticalvaluethatmaximizesthepropertyofnonlinearparametricvibrationofcables，andthepropertyofnonlinearparam
7、etricvibrationofcablesincreasesmonotonouslywiththeinclinedangle．Keywords：structuralmechanics；cable—supportedstructures；cable；coupledmodel；frequencyresponse；paramet-ricvibration；nonlinearvibrationReceived：2叭4O9．11；Accepted：2015．03．24Foundation：NationalNaturalScie
8、nceFoundationofChina(51078119)：FundofNationalEngineeringandResearchCenterforHighwaysinMountainArea(gsgzj一2013-03)；FundofKeyLaboratoryofBridgeEarthquakeResistanceTechn
