学科分类
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24 个结果
  • 简介:文章从法学社会学的角度对作为实践问题的离婚财产分割进行了分析。在比较两大法系相关领域的法制经验及其社会背景的基础上,指出离婚财产分割中规则和裁量应当互相平衡,同时它们之间具体的结构和地位则依据各国的具体情况具体对待。对于我国来说,基于我国的现状和国情既需要完善规则,又要完善、规范裁量权,使两者之间形成良性互动。

  • 标签: 离婚财产分割 规则 裁量
  • 简介:本刊特邀记者走访了有关部门的一些专家学者,仅就“R16导向”问题请们谈了自己的看法,他们从理论上和实践上详尽地阐述了R16A圆弧在机车走行中的重要作用,本刊认为:这些学术观点对研究轮轨关系有着深远意义,对解决减速顶磨机车轮缘问题也有着重要价值。因此,本刊编辑了特邀记者的采访,其基本内容是:轮缘顶部外侧R16圆弧在经过曲线时,R16圆弧超前与钢轨接触,从而迫使车轮转向,导致机车顺利通过曲线;内侧R16圆弧在经过道岔时,其与护轮轨接触,使车轮顺利通过辙岔心,故两个R16圆弧不是可有可无的,而是在机车走行中起着重要的安全作用。

  • 标签: 中国 机车车轮 轮缘顶部 R16圆弧 导向作用
  • 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.

  • 标签: Compliant TOWER TIMOSHENKO beam Rayleigh-Ritzmethod ECCENTRIC