纺织机械设备维修管理问题分析

试对纺织机械设备的管理问题作探析,旨在阐述机械设备管理在企业发展中的重要作用。纺织企业的机械管理具有“机械设备精良、专业技术配套、机械操作精确”的特点,也是提高管理技术水平不可忽视的关键。工作中注意上述管理问题能够为纺织企业的机器正常运转和经济效率的提高奠定良好的基础。     

论如何搞好机械设备的管理与维修保养

设备的使用、管理、保养及维修阶段占设备总寿命周期的绝大部分,抓好设备管理工作,保证设备的安全、正常运行,是企业管理工作中—项基础性工作,它维系着企业生产经营的根基,影响着企业的方方面面。加强企业机械设备的管理力度,充分发挥机械设备效能,挖掘机械设备的潜力,具有重要的现实意义。     

企业设备管理的策划与设计

在市场经济体制下,企业越来越重视其投资取向、产品定位、销售策划、企业形象策划(CIS)和企业文化的营造。毫无疑问,以上这些方面都是企业生存不可缺少的要素。但企业最高决策者是否认真考虑过,设备管理也需要策划与设计?有的企业领导者往往把设备管理理解为企业设备台帐管理与设备维修,把设备管理组织看成是救火队。他们还往往认为搞生产、抓工艺是为企业创效益,而搞设备管理是花钱的。设备正常运转,大家相安无事。设备出了问题,影响了生产,他们才想到设备管理人员,抱怨和责备工作没有做好。很少有人认真思考一下,企业的设备管理到底应     

机械设备管理中常见问题及措施

机械设备管理是建筑企业管理中的重要组成部分,关系到建筑工程的施工质量,影响着建筑工程的施工进程,因此,加强机械设备管理,选择恰当的机械设备,正确使用机械设备,做好保养与修理工作,可以使设备保持在一个较好的状态,保证工作的正常进行。分析机械设备管理中常见问题,从根源入手,提出有效的解决措施具有重要的意义,可以加强建筑企业机械设备管理,提高管理质量。     

基于.NET和条形码技术的设备管理系统的设计与实现

在具有设备管理需求的企业或科研机构,传统的设备管理方式效率低,并容易产生误差。本文结合计算机编程技术和条形码技术对实验室设备管理进行信息化改进,降低了设备管理的人工成本,提高了管理水平,为设备的正常使用和企业运转提供了有力的保障。     

中资施工企业在埃塞俄比亚公路工程中的设备管理

设备是施工企业重要施工工具,设备管理的好坏会直接影响施工进度和工程效益,这就和打仗一样,在战争的某一个阶段,武器是决定胜负的法宝,如何保证设备的正常运转和出工率,是施工企业必须时刻关注的问题。从严格意义上说,每个工程项目的设备管理都不尽相同,在埃塞俄比亚MS项目中,     

冶金机械设备安装及其注意事项探讨

主要是对冶金机械设备安装特点及安装环节进行了科学的分析,并针对设备在安装前、安装时、安装后需要注意的事项进行探讨,故得出结论,机械设备在不同的安装环境下进行多样化的安装流程,确保设备能正常运转,提升企业产品的成产效率,提高产品质量,使机械设备为企业带来经济效益最大化。     

机械维修质量因素分析及应对策略

机械设备在企业活动当中发挥着十分重要的作用,对设备进行有效管理以及及时维修,能够保持设备处于良好状态,促进企业设备的正常运行。本文针对石油企业的设备在维修过程当中存在着制度管理不规范、维修力度不足,管理手段跟不上等问题,提出管理人员应当从全面的管理理念和制度标准中对维修技术进行创新改革,使设备管理和维修工作能够高效运行,促进了企业的正常发展。     

设备ABC分类动态管理在企业的应用

伴随社会经济的迅速发展,我国市场环境愈加复杂,市场竞争越来越激烈,在企业运营发展中,设备种类与数量日益增多。为保证设备运转正常,适应现代化管理需求,提高设备的综合经济效益,必须重视设备管理。ABC分类法在企业设备管理中的应用,可进一步推进设备精细化管理,明确设备管理的目标,提升重点关键设备的受控力度,提高设备管理效率。     

机械设备维修技术与方法探析--以施工企业设备为例

由于现代社会机械设备种类繁多，想要保证机械设备正常运转就离不开机械设备的良好维修。对于任何一种机械设备而言，确保设备保持良好的状态，属于一项预防性工作，对于提升企业经济效益，促进企业持续发展有着重要推动作用。     

Minimal Realization of Linear Graph Models for Multi-physics Systems

An engineering system may consist of several different types of components,belonging to such physical"domains"as mechanical,electrical,fluid,and thermal.It is t...     

Quantum Cooperative Robotics and Autonomy

The intersection of Quantum Technologies and Robotics Autonomy is explored in the present paper.The two areas are brought together in establishing an interdisci...     

考虑进油孔有限长滑动轴承油膜力的近似解析解

针对具有进油孔的有限长滑动轴承油膜力求解问题,采用变分原理和分离变量法,求得了有限长滑动轴承油膜压力分布的近似解析表达式。将油膜压力分布的近似解析表达式在油膜存在区域上进行积分,即得到了油膜力。将提出的计算有限长滑动轴承油膜力方法与无限长轴承模型、有限元方法的计算结果进行了比较,发现了提出的方法与有限元方法的计算结果很接近。最后,研究了进油孔位置和进油压力对油膜存在区域、油膜力等的影响,研究结果表明进油孔位置和进油压力对油膜存在区域和油膜力有较大的影响。     

三绕组变压器的双绕组等效建模及在Matpower中的应用

针对实际电网存在着大量的三绕组变压器,但国际上一些著名商业软件,如BPA仿真软件、Matpower这一权威潮流计算开源软件,均只提供双绕组变压器模型,限制了其在具有三绕组变压器的电力系统中的应用的问题,潮流计算是自主开发的电力系统各种应用软件的核心模块,因此依托国际权威开源程序进行二次开发,是一种较好的选择。对Matpower要求的数据格式进行了归纳,对变压器的一般的等值电路及带理想变压器的等值电路和带标幺值的等值电路进行了分析研究,提出了三绕组变压器转换为双绕组等效模型的建模方法,使得原先只适应双绕组变压器的潮流计算软件可以适用于三绕组变压器电网的潮流计算;最后以Matpower软件为例进行了案例计算,并用PSASP仿真软件进行对比验证。研究结果证明,所提出的建模方法是有效的。     

On the Relation of Load to Average Gap in the Contact Between Surfaces with Longitudinal Roughness

A computer simulation model for the contact between longitudinally-oriented rough surfaces has been formulated. This model closely duplicates the actual surf ace contact deformation behavior by taking into account the elastic interactions between the asperities. There were no assumptions made about the shapes, or any deformation behavior of the asperities, except for their obeying the laws of elasticity. The plastic deformations on the high asperity peaks were taken into account by setting a ceiling on their contact pressures at the material hardness value. The simulations used real surface profiles which were digitized from unworn circumferentially ground steel surfaces. Each pair of these profiles was mathematically combined to form an equivalent rough profile pressing against an infinitely rigid flat and having the appropriately adjusted elastic modulus. A total of 28 different pairs of profiles were used in the simulations. Each contacting pair was subjected to 30 different load levels and the local contact pressures and deformations were calculated. The contact simulations yielded some important mathematical relationships between parameters, such as the real area of contact, average gap, and average asperity load through statistical curve fitting. Two analytical functions were generated to relate the average load to average gap and the real area of contact to load.     

Fifth International Summer School on Screw-Theory Based Methods in Robotics

正3-11 September,2014University of Bologna,Bologna,Italy www.summerscrews.org summerscrews2014.ing.unibo.it SUMMER 20SCREWS 14In 2014,our screw-theory school comes to the world's oldest university.In early September,Summer Screws'14 will gather six experts in the application of screw theory in robotics and up to 40 participants at the University of Bologna,Bologna,Italy.The school will teach attendees how to apply existing methods and empower them to develop new ones in their own research.The basic theoretical notions will be introduced in a rigorous manner,emphasizing examples,applications,and exercises.Scholarships are available.     

INTEGRAL EQUATION METHOD＇S APPLICATION IN HOLE-EDGE STRESS OF COMPOSITE MATERIAL PLATE WITH DIFFERENT SHAPED HOLES

The strength of composite plate with different hole-shapes is always one of the most important but complicated issues in the application of the composite material. The holes will lead to mutations and discontinuity to the structure. So the hole-edge stress concentration is always a serious phenomenon. And the phenomenon makes the structure strength decrease very quickly to form dangerous weak points. Most partial damage begins from these weak points. According to the complex variable functions theory, the accurate boundary condition of composite plate with different hole-shapes is founded by conformal mapping method to settle the boundary condition problem of complex hole-shapes. Composite plate with commonly hole-shapes in engineering is studied by several complex variable stress fimction. The boundary integral equations are founded based on exact boundary conditions. Then the exact hole-edge stress analytic solution of composite plate with rectangle holes and wing manholes is resolved. Both of offset axis loadings and its influences on the stress concentration coefficient of the hole-edge are discussed. And comparisons of different loads along various offset axis on the hole-edge stress distribution of orthotropic plate with rectangle hole or wing manhole are made. It can be concluded that hole-edge with continuous variable curvatures might help to decrease the stress concentration coefficient; and smaller angle of outer load and fiber can decrease the stress peak value.     

INDUSTRIAL ENGINEERING AND VISUALISATION-A PRODUCT DEVELOPMENT PERSPECTIVE

Taking the actual project of teaching and researching process for example, the relationship between the industrial engineering and product development is discussed. And use the novel visualization technology to support the industrial engineering and product development. How to use the new computer modeling and simulating technologies to support the product development and industrial engineering, is introduced especially. The support includes both domestic products and industrial systems. The visualization and computer technologies take a very important role in some system or multi-direction modeling, those technologies mentioned above can help the industrial engineers study the effect of design on the whole life circle, including the producing steps. So the engineers can avoid making the wrong decision which may cause bad effects on the whole industrial engineering.     

电站锅炉模糊风险评价方法研究与应用

针对电站锅炉风险等级评价问题,将模糊综合评价技术应用到电站锅炉风险等级评价中。开展了电站锅炉失效影响因素及模糊评价因素的重要程度分析,建立了一套科学合理适于在线评价的电站锅炉风险评价体系,提出了模糊综合评价技术与改进的模糊层次分析法相结合的模糊风险评价方法,利用改进的模糊层次分析法计算了指标体系中各层指标权重。对某一台电站锅炉的实际运行工况影响子因素进行了模糊风险评价,采用模糊合成算子进行模糊综合运算得到电了站锅炉运行工况影响子因素的评价向量。研究结果表明:电站锅炉的运行工况影响子因素的风险评价等级为第6级,失效可能性等级为小,该电站锅炉运行工况良好。     

Short-Term Relay Quality Prediction Algorithm Based on Long and Short-Term Memory

The fraction defective of semi-finished products is predicted to optimize the process of relay production lines, by which production quality and productivity ar...