基于虚拟仪器的舰船动力装置振动测量系统开发

以虚拟仪器LabVIEW为平台选择振动测量系统硬件,研制舰船动力装置振动测量系统,实现对舰船动力装置振动监测与分析的功能。通过与比利时LMS公司振动测试系统的对比振动测量分析试验,验证了基于虚拟仪器振动测量系统在其精度、功能和稳定性等方面均能满足测试分析的技术要求。     

基于模糊层次分析法的多人物流供货商选择模型

基于模糊集合理论提出了一个解决供货商选择问题的多人模糊层次分析法模型.首先运用模糊Delphi法和特征向量法形成上层准则的权重集合;然后结合以模糊语言变量表示的备选方案偏好等级的满意度和下层指标的模糊权重,通过分层结合,得到供货商的综合模糊评分;最后采用Fortemps和Roubens的面积补偿方法对各个方案的三角模糊数进行排序,从而得到供货商方案综合选择的优先顺序,为实际决策提供依据.实例说明了供货商多人模糊综合评价的具体过程及合理性和有效性.     

水泥土搅拌桩桩身强度影响因素的正交层次分析

在江苏省连盐高速公路连云港试验段,根据场地的地基条件,在室内配比试验的基础上,进行了多种配比和不同施工工艺的水泥土搅拌桩成桩质量研究。运用正交试验数据分析方法探讨水泥的掺入量、搅拌次数和地基土含水量等因素对水泥土搅拌桩桩身强度的影响。结果表明:正交层次分析法可以得出各因素对桩身强度影响的权重,除了水泥掺入量对成桩质量有决定性影响外,地基土含水量也有较大的影响,在一定的范围内搅拌次数影响不大。在此基础上为更好地控制水泥土搅拌桩现场施工质量提出了建议。     

电压调节器综合参数测试台的研制

介绍了新研制的电压调节器综合参数测试台。该测试台可实现工况设置、数据自动采集处理及记录等功能，并提供了自动和手动转换开关，具有三个工作平台，操作方便、安全可靠、测试速度快、精度高，并可对电压调节器的各种特性进行测试分析。     

A Remote Real—Time Monitoring System for Power Quality

Introduction　　Withthewideapplicationofelectricpowerequipmentandelectronicdevicestoelectricrailways ,thenonlinearimpactloadinpublicsupplynetworksincreasesunceasingly .Itleadstopowervoltage qualitydeterioration ,powerharmonic pollutionandsevereinterferenc…     

虚拟仪器技术在某型罗经检测系统中的应用

根据虚拟仪器技术的特点和某型罗经工作原理,利用虚拟仪器技术开发了某型罗经检测系统,该检测系统能够通过外加激励、信号检测、功能检测等方式实现该型罗经的各个主要功能的测试,方便了实际装备的维修保障,可对装备内场调试的全过程进行监控。     

Surrounding Rock Classification of Banxi Group Slate with Abundant Water北大核心CSCD

For water-rich slate, surrounding rock argillization and softening is a serious problem. At present the uni-axial saturated compressive strength of rock is used as one of the indexes for classification of water-rich slate sur-rounding rock. Since Banxi Group slate has special geological characteristics, the above mentioned grading index is not completely suitable for its surrounding rock classification due to limitations. For this reason, using the Youfang-ping tunnel at the Changsha to Kunming Section of the Shanghai to Kunming high-speed railway in China as an ex-ample, a softening coefficient is introduced, and the underground water, rock mass integrity coefficient and angle of the main structural surface and tunnel axis are regarded as the main controlling factors. A system of surrounding rock classification for tunnels in water-rich slate is established. Based on the theory of fuzzy mathematics, the member-ship function of each index is structured and the weight of each index is calculated by AHP, and the grade of the sur-rounding rock is determined according to the maximum membership degree principle. The results show that the fuzzy information of surrounding rock classification is processed effectively and the classification of surrounding rock is achieved by qualitative analysis to quantitative evaluation by using fuzzy theory. The surrounding rock classification determined by introducing the softening coefficient on the basis of fuzzy theory is close to that determined in practical application, indicating that the practicability of this classification of tunnel surrounding rock in water-rich slate is high. This classification system therefore is a reference for the design and construction of tunnels in water-rich slate. © 2018, Editorial Office of "Modern Tunnelling Technology". All right reserved.     

一种海上平台发电机组仪表系统数字化改造设计方案

针对海上老龄平台发电机组仪表系统硬件线路繁杂、缺乏数字化监测手段等问题,提出一种数字化仪表系统,通过变送器、总线模块、PLC控制器和Web上位机软件,最终实现仪表系统数字化、可视化、可扩展等功能。     

分米波仪表着陆系统虚假下滑道的分析与仿真

分米波仪表着陆系统虚假下滑道的存在会导致飞机得到错误的导航信息。从下滑天线的原理出发,分析了其空间合成信号的特性,并通过数学推导分别研究了理想下滑面及虚假下滑面上、下1300Hz和2100Hz信号的变化规律。最后采用MatrixX软件开发平台对推导结果进行了仿真验证。     

港口货种贡献度评价方法探讨

对港口货种按港口腹地产业状况进行分类,通过定性和定量指标并利用专家咨询（Delphi）法对定性指标排序,再采用层次分析法（AHP）对港口货种进行分析,得出港口各货种对港口发展的贡献度。通过对影响港口发展各因素的分析,可为港口决策者在进行港口发展决策时提供必要的数据,有利于港口决策者对港口发展作出正确决策。