简介:Tosolvethedimensionallimitationsofphysicalmodelsintests,anequivalentwaterdepthtruncateddesignforaclassicalSPARworkingin913mwaterwasinvestigated.Thewaterdepthwasreducedto736mandthento552m.Asthiswasdone,themooringlinelengths,EAvalue,andmasspermeterwereadjusted.Truncationrulesandformulasforparametersandtruncationfactorswereproposed.SPARstaticcharacteristicsweremadetobeconsistentwiththoseatfullwaterdepth.Thenfurthertime-domaincoupledanalysiswascarriedoutfortheSPARwhenthemooringsystemexperiencedwaves.Themooringlinesweresimulatedbyquasi-staticmethod.Globalresponsesandmooringlineforceswerefoundtoagreewellwithtestresultsforaprototypeatthatwaterdepth.Thetruncationmethodprovedtoberobustandreliable.
简介:构建了数据随机截断情形下的Weibull型参数模型,分别利用经典方法和Bayesian方法对其参数进行了估计。
简介:讨论Curto-Fialkow所给出的四阶截断复矩问题,即给一个复数序列γ≡γ~((4)):γ_(00),γ_(0)1,γ_(10),γ_(02),γ_(11),γ_(20),γ_(03),γ_(12),γ_(21),γ_(30),γ_(04),γ_(13),γ_(22),γ_(31),γ_(40),其中γ_(00)〉0,γ_(ij)=y_(ji),找到一个正的Borel测度使得γ_(ij)=∫-izz~jdμ(0≤i+j≤4)成立;得到了四阶非奇异截断复矩矩阵M(2)的平坦延拓存在的充分必要条件及在特殊情况下的解,并举例进行了验证.