简介:摘 要:本文通过对抗侧滚扭杆功能原理的分析,建立了抗侧滚扭杆刚度数学模型,对抗侧滚扭杆的综合刚度进行了分析。并以车辆运行平稳性及稳定性为考核指标,优化抗侧滚扭杆的刚度参数,得到刚度最优解。最终对抗侧滚扭杆进行疲劳试验验证其强度满足运用要求。
简介:【摘要】目的:探究自拟田及伤科油剂治疗踝关节扭挫伤的应用效果。方法:选取我院收治临床上符合纳入标准的踝关节扭挫伤患者,选取40病例,随机分组为治疗组(20人,外用扶他林软膏的基础上使用自拟田及伤科油剂外敷治疗)和对照组(20人,采取扶他林软膏外擦治疗),对比两组的治疗效果。结果:治疗组的患者治疗效果明显优于对照组。结论: 对踝关节扭挫伤患者进行自拟田及伤科油剂治疗能够缓解患者的疼痛感,有效的提升治疗效果。
简介:Rigidblockingmassesarelocatedinthetypicalbasestructureofapowercabinbasedontheimpedancemismatchprinciple.Bycombiningtheacoustic-structuralcouplingmethodandstatisticalenergyanalysis,thefull-bandvibrationandsoundradiationreductioneffectofvibrationisolationmasseslocatedinabasestructurewasresearched.Theinfluenceoftheblockingmass’cross-sectionsizeandshapeparametersandthelayoutlocationofthebaseisolationperformancewasdiscussed.Furthermore,theeffectivenessofrigidvibrationisolationdesignofthebasestructurewasvalidated.Theresultsshowthatthemediumandhighfrequencyvibrationandsoundradiationofapowercabinareeffectivelyreducedbyablockingmass.Concerningweightincrementandsectionrequirement,suitablyincreasingtheblockingmasssizeandsectionheightandreducingsectionwidthcanresultinanefficiency-costratio.