简介:从近年来教学过程中收集到的学生问题出发,对教材的编写现状进行探索和思考,指出现行教材中章节顺序安排上和课程的整体性安排上与当前的实际教学需要之间存在的瑕疵,以期今后在修订新版教材或开展教学实践时给予充分的改进;指出十八届四中全会提出的关于全面推进依法治国的相关要求也是大家需要给予充分考虑的因素.
简介:《思想道德修养与法律基础》课肩负着培养社会主义接班人和合格人才的重大责任,课程内容和要求有其基本的规定,专家学者也积极工作编写了精品教材,但今天已经不能适应实际的教学需要;本文从教学过程的实际情况出发,结合十八届四中全会提出的新要求,对课程的内在逻辑关系和整体性表达进行了探析,提出了“让理想成为本课程点睛之笔”的金字塔式的课程架构,使本课程的教学过程和教学目标更加清晰.
简介:文章通过分析马克思主义哲学中国化的历史必然性、现实可能性,阐释马克思主义哲学中国化的实践基础,提出马克思主义哲学中国化面临的问题等方面对马克思主义哲学中国化主题进行了宏观解读。
简介:Acomplianttowerismodeledasapartiallydry,partiallytapered,dampedTimoshenkobeamwiththesuperstructuremodeledasaneccentrictipmass,andanon-classicaldampedboundaryatthebase.Thefoundationismodeledasacombinationofalinearspringandatorsionalspring,alongwithparallellinearandtorsionaldampers(Kelvin-Voigtmodel).Thesuperstructureaddstothekineticenergyofthesystemwithoutaffectingthepotentialenergy,therebyreducingthenaturalfrequencies.Theweightofthesuperstructureactsasanaxialcompressiveloadonthebeam,reducingitsnaturalfrequenciesfurther.Theemptyspacefactorduetothetruss-typestructureofthetowerisincluded.Theeffectofsheardeformationandrotaryinertiaareincludedinthevibrationanalysis;withthenon-uniformbeammode-shapesbeingaweightedsumoftheuniformbeammode-shapessatisfyingtheendcondition.TheweightsareevaluatedbytheRayleigh-Ritz(RR)method,andverifiedusingfiniteelementmethod(FEM).Theweightofthesuperstructureactsasanaxialcompressiveloadonthebeam.Kelvin-Voigtmodelofstructuraldampingisincluded.Apartofthestructurebeingunderwater,thevirtualaddedinertiaisincludedtocalculatethewetnaturalfrequencies.Aparametricstudyisdoneforvariousmagnitudesoftipmassandvariouslevelsofsubmergence.ThecomputationalefficiencyandaccuracyoftheRayleigh-Ritzmethod,ascomparedtotheFEA,hasbeendemonstrated.Theadvantageofusingclosed-formtrialfunctionsisclearlyseenintheefficacyofcalculatingthevariousenergycomponentsintheRRmethod.