新能源汽车专业校企合作模式探究

随着国家新能源汽车产业的快速发展,新能源汽车企业急需大量高层次应用型人才,而校企合作是实现高层次应用型人才的培养的有效途径。本文依托新能源汽车专业,分析了新能源汽车专业校企合作的必要性,探究了校企合作的多种模式,为高层次应用型人才的培养途径提供了指导。     

工业机器人技术专业现代学徒制课程体系的构建

工业机器人技术专业是发展智能制造行业亟需的人才培养重点专业,主要培养具有工业机器人集成设计、编程操作的技术技能型专门人才。目前智能制造行业更新快、问题多元化、知识点多,对人才的培养提出了新的要求。经过对企业的调研分析,根据接智能制造行业的用人需求和人才培养目标,结合现代学徒制人才培养特征,该文重点梳理了工业机器人技术专业现代学徒制课程体系的知识点、技能点,梯度递进设计了基于单片机的微型直流电机调速系统等4个学期项目,深度改革现有课程,创新运用学期项目贯穿式的教学模式,着重解决现代学徒制人才培养过程中出现的学生眼高手低和实践能力弱、用人需求与企业实际岗位不匹配等问题。实践表明,新课程体系实施,学生能有效地将所学的理论知识运用到项目实践中,极大地提高了学生的学习兴趣,达到了学生毕业即上岗的培养目标,缩短了智能制造行业人才的培养周期和减少培养成本,得到了合作企业的高度认可,在同行业中可以推广应用。     

石油化工装置大型往复活塞式压缩机安装技术

近年来，随着我国现代工业发展进程的不断加快，大型往复活塞式压缩机在石油化工领域的应用性能越来越完善，其应用范围也越来越广泛。石油化工企业实行开采任务的过程中，应用大型往复活塞式压缩机，经常会遇到很多安装性的技术问题，这些问题不仅降低了压缩机的运行质量，还影响了压缩机的运行效率。基于此，本文将针对大型往复活塞式压缩机的安装技术内容进行深入研究。     

西门子积极投身中国数控应用人才开发行动

当前，高水平数控应用人才的缺乏成了制约我国工业快速发展的瓶颈之一。为此，国家劳动和社会保障部、教育部、国防科工委、科技部、中华全国总工会、中国机械工业联合会等六部委共同发起，统一组织了“第一届全国数控技能大赛”，旨在推动现代制造技术的应用、发展以及制造业技能人才的培养。西门子作为“第一届全国数控技能大赛”的主要赞助企业，积极参与中国数控应用人才的选拔和培养活动。     

技工院校新能源汽车专业技术人才的培养初探

随着新能源汽车的发展,需要越来越多的新能源汽车专业技术人才,原有的课程体系需要进一步的调整。如何培养符合企业发展需要的技能型人才,值得我们共同探讨。我校在原有汽车维修专业基础之上,依托企业资源,建设新能源汽车实训基地,进一步调整课程体系,力求培养符合企业发展需要的具备技能人才。     

博览众家之长细品特色之美

第二届中国国际压缩机技术及设备展览会于2006年8月2日在中国国际展览馆隆重召开。作为一次压缩机的专业展会,本次展会已经是第二次举办了。与第一届展会相比,本届展会在以压缩机展示为主的基础上还融合了不少相关的机电产品,如电动机、轴承等,共计有330家之多。参展的压缩机企业有国内外的压缩机企业,其中有来自意大利的玛泰集团,瑞典的阿特拉斯·科普柯(上海)贸易公司和中国的开山集团等,产品有滑片式、离心式、涡旋式、螺杆式等多种压缩机类型。本刊记者在展会现场采访了多家参展企业,通过采访我们了解到他们的技术、销售等情况。以下是…     

机械工业部石化通用机械工业局压缩机专业技术委员会召开第三次会议

机械工业部石化通用机械工业局压缩机专业技术委员会成立于一丸七九年四季度。为适应当前压缩机行业的发展和实现四个现代化的要求,有必要加强压缩机专业技术委员会对有关方针政策、发展方向、技术标准、科研生产、体制改革、企业改造以及重大技术问题等方面的研究讨论工作并积极提出建议,在促进和推动压缩机行业迅速进步和提高方面有更好的效果。委员会于今年四月在无锡市召开了第三次会议,对组织条例进行了修订,对成员进行了调整,还对压缩机行业当前面临的一些重大问题进行讨论,情况简介如下:     

贺词

《压缩机技术》编辑部: 值此“压缩机技术”杂志创刊25周年之际,我仅向《压缩机技术》编辑部表示热烈祝贺。 压缩机行业是通用机械中最早形成的行业之一,三十多年来在全行业共同努力下,较早地开展了产品自行设计工作、试验研究工作,培养了一支专业技术力量,形成了相当规模的生产能力,制造了一些技术水平相当高的产品,为压缩机行业步入世界先进打下良好基础。《压缩机技术》在促进行业进步和发展方面作出了重要贡献。     

汽修专业现代学徒制在县域职校开展“3+2”人才培养模式的创新与实践

汽修专业主要目的是培养新型的现代汽修人才,近年来,随着我国汽车产业的快速发展,市场上对高素质汽修人才的需求越来越大,也对其提出了更高的要求。现代学徒制培养是职业学校发展的方向,作为培养和输送专业人才的重要基地,县域职校汽修专业发展也应与时俱进,结合当前的社会市场需求适时转变人才培养模式,以三天在企业、两天在学校的“3+2”人才培养模式创新实践,着力培养学生的专业精神、职业精神和工匠精神,提升学生的职业道德、职业技能和就业创业能力,从而从整体上有效提高教学实践。     

浅谈汽车维修技术发展趋势与高职高专汽车专业结构的改革

通过分析现代汽车技术发展趋势和汽车维修技术的提高,调整汽车专业知识结构,以适应汽车技术发展,与时俱进,培养出高质量的技术人才。     

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...     

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.     

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。     

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。     

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。     

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.     

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.     

交通荷载作用下桥梁结构参数识别方法

应用动力节点加载法,将作用在桥梁上的交通荷载转化为等效节点荷载,再用两步构造法识别结构物理参数.第1步,用Newmark-β方法变换结构运动方程,并用结构的加速度响应求得变换空间内的位移、速度和加速度响应;第2步,基于最小二乘原理,构造出变换空间内求解结构参数的递推式,进行结构物理参数识别.数值模拟结果表明,在交通荷载作用下,该方法能够快速、准确地进行桥梁结构参数识别.     

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.