基本信息
标准名称: | 可靠性设计评审 |
英文名称: | Reliability design reviews |
中标分类: |
综合 >>
基础标准 >>
综合技术 |
ICS分类: |
试验 >>
试验条件和规程综合
|
发布部门: | 国家标准局 |
发布日期: | 1987-06-03 |
实施日期: | 1988-01-01 |
首发日期: | 1987-06-03 |
作废日期: | 1900-01-01 |
主管部门: | 信息产业部(电子) |
提出单位: | 中华人民共和国电子工业部 |
归口单位: | 全国电工电子可靠性与维修性标准化技术委员会 |
起草单位: | 电子部标准化所 |
起草人: | 苏德清、朱明让 |
出版社: | 中国标准出版社 |
出版日期: | 1988-01-01 |
页数: | 11页 |
适用范围
本标准阐述了可靠性设计评审的目标和要求,规定了设计评审的程序和方法,对研制过程如何应用设计评审,提供了指导和必要的表格实例。本标准适用于新系统的研制或已有系统的改进设计。对于规范中包括有可靠性和维修要求的设计项目,必须实施严格的设计评审。评审工作的深度和广度,取决于系统的重要性和复杂性,以及受进度和费用的限制。对于电子、电气、机械和液压等不同类型的系统均可按本标准实施设计评审。
前言
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引用标准
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所属分类: 综合 基础标准 综合技术 试验 试验条件和规程综合
【英文标准名称】:StandardTestMethodsforStaticandDynamicCharacterizationofSpinalArtificialDiscs
【原文标准名称】:人造脊椎盘的静态和动态特性的标准试验方法
【标准号】:ASTMF2346-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:F04.25
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:特性记述;人工的;静态的;动态的;试验
【英文主题词】:artificialintervertebraldisc;dynamictestmethods;spinalimplants;statictestmethods
【摘要】:Artificialintervertebraldiscsareorthopaedicimplantsthatreplacedegeneratednaturalintervertebraldiscs.Theirfunctionistosupporttheanteriorcolumnofthespinewhileallowingmotionattheoperatedlevel.Thesetestmethodsoutlinematerialsandmethodsforthecharacterizationofthemechanicalperformanceofdifferentartificialintervertebraldiscssothatcomparisonscanbemadebetweendifferentdesigns.Thesetestmethodsaredesignedtoquantifythestaticanddynamiccharacteristicsofdifferentdesignsofartificialintervertebraldiscs.Thesetestsareconductedinvitroinordertoallowforanalysisofindividualdiscreplacementdevicesandcomparisonofthemechanicalperformanceofmultipleartificialintervertebraldiscdesignsinastandardmodel.Theloadsappliedtotheartificialintervertebraldiscsmaydifferfromthecomplexloadingseeninvivo,andtherefore,theresultsfromthesetestsmaynotdirectlypredictinvivoperformance.Theresults,however,canbeusedtocomparemechanicalperformanceofdifferentartificialintervertebraldiscs.Fatiguetestsshouldbeconductedina0.9%salineenvironmentalbathat37x00B0;Catarateof2Hzorless.Othertestenvironmentssuchasasimulatedbodyfluid,asalinedripormist,distilledwater,orothertypeoflubricationcouldalsobeusedwithadequatejustification.Likewise,alternativetestfrequenciesmaybeusedwithadequatejustification.Itiswellknownthatthefailureofmaterialsisdependentuponstress,testfrequency,surfacetreatments,andenvironmentalfactors.Therefore,whendeterminingtheeffectofchangingoneoftheseparameters(forexample,frequency,material,orenvironment),allothersshouldbekeptconstanttofacilitateinterpretationoftheresults.Inparticular,itmaybenecessarytoassesstheinfluenceoftestfrequencyondevicefracturewhileholdingthetestenvironment,implantmaterialsandprocessing,andimplantgeometryconstant.1.1Thesetestmethodsspecifythematerialsandmethodsforthestaticanddynamictestingofartificialintervertebraldiscs.1.2Thesetestmethodsareintendedtoprovideabasisforthemechanicalcomparisonamongpast,present,andfuturenon-biologicartificialintervertebraldiscs.Thesetestmethodsallowcomparisonofartificialintervertebraldiscswithdifferentintendedspinallocations(cervical,thoracic,andlumbar)andmethodsofapplicationtotheintervertebralspaces.Thesetestmethodsareintendedtoenabletheusertomechanicallycompareartificialintervertebraldiscsanddonotpurporttoprovideperformancestandardsforartificialintervertebraldiscs.1.3Thesetestmethodsdescribestaticanddynamictestsbyspecifyingloadtypesandspecificmethodsofapplyingtheseloads.Thesetestsaredesignedtoallowforthecomparativeevaluationofartificialintervertebraldiscs.1.4Thesetestmethodsdonotpurporttoaddressallclinicallyrelevantfailuremodesforartificialintervertebraldiscs,someofwhichwillbedevicespecific.Forexample,thesetestmethodsdonotaddresstheimplant''sresistancetoexpulsionorimplantwearresistanceunderexpectedinvivoloadsandmotions.Inaddition,thebiologicresponsetoweardebrisisnotaddressedinthesetestmethods.1.5Requirementsareestablishedformeasuringdisplacements,determiningtheyieldloadormoment,andevaluatingthestiffnessofartificialintervertebraldiscs.1.6Someartificialintervertebraldiscsmaynotbetestableinalltestconfigurations.1.7ThevaluesstatedinSIunitsaretoberegardedasthestandardwiththeexceptionofangularmeasurements,whichmayber......
【中国标准分类号】:C35
【国际标准分类号】:11_040_40
【页数】:10P.;A4
【正文语种】: