引入情感因素进行抽油机的外观造型改进设计

阐述了情感因素在机械产品外观造型中的作用及机械产品设计中引入情感因素的必然性.沿着注重文化的情感设计方向,采用中国传统文化元素为基本的设计思路,并应用现代工业产品造型设计中的仿生设计方法,在保证抽油机性能不变的前提下,对常规游梁抽油机的游梁、驴头和支架进行了外观造型改进设计.对改进后的抽油机进行动力学分析、有限元分析,从而验证了改进后的抽油机的实用性和安全性能.最后完成了抽油机的三维效果图制作,实现了机械产品外观造型设计的情感化.     

基于情感化设计理论的儿童学习陪伴型机器人造型设计

为使儿童学习陪伴型机器人具备符合儿童审美及情感需求的造型特点,从情感化设计的理论出发,在分析了情感化因素对儿童心理和生理产生的影响后,通过对现有机器人造型的对比分析,确定了产品的整体设计定位。运用诺曼的情感化设计三层次理论展开设计构思,针对儿童情感需求,对产品的形态、色彩、功能和动作等方面进行了创新设计,为相关行业进行儿童机器人产品设计提供参考。     

论机械产品设计是技术和艺术造型的综合设计

机械产品与其他轻工产品一样，其功能包括使用功能和审美功能。针对当今机械生产企业对产品设计的认识和做法存在三种误区，重功能轻造型的误区，工程师包办技术和艺术造型设计的误区，艺术造型只是装饰机械外表的误区。分析机械产品应该是技术和艺术的完美结合，在设计过程中互相渗透，互相联系，从而得出一个机械产品设计的工作程序图。     

产品造型与审美及其表现规律

产品造型与审美有着密切关联,它以实用与美观的统一生动地体现着社会主体的充满理智情感的精神追求,是社会和时代的物质文明和精神文明的标志.该文阐述了在实践中认真遵循审美的各项规律,把握好产品造型及设计中诸如比例与尺度、均衡与稳定、统一与变化、节奏与韵律以及色彩的灵活运用.     

机械产品设计中的造型学研究

文中分析了机械产品设计中的造型学运用,以产品造型的美学法则为切入点,再以机械产品为主要设计对象,重点分类研究机械产品设计的造型元素特征和设计方法。针对几何造型、工艺造型和仿生造型进行设计分析,研究如何将工业技术和设计艺术结合统一,造就优良的机械产品。     

论机械产品设计是技术和艺术造型的综合设计

机械产品与其他轻工产品一样，其功能包括使用功能和审美功能，针对当今机械生产企业对产品设计的认识和做法存在三种误区，重功能轻造型的误区，工程师包办技术和艺术造型设计的误区，艺术造型只是装饰机械外表的误区，分析机械产品应该是技术和艺术的完美结合，在设计过程中互相渗透，互相联系，从而得出一个机械产品设计的工作程序图。     

机械产品的造型与色彩设计

机械产品的造型和色彩设计是一项以确定外部质量为目标的创造性劳动,是人们通过技术规律和艺术手段,对产品外观造型和色彩进行综合性的技术处理,以表达产品的功能、形体、装饰、色彩和质感。使产品的功能和艺术性,通过形体结构、物质条件、工艺手段等方法体现出来,以满足人们对产品的物质功能、精神功能,以及审美情趣的需要。     

掘进机的造型设计研究

探索掘进机的外观造型如何在满足其功能要求的同时,还能具备提高市场竞争力、符合现代审美及市场需求的设计方法。以M220型掘进机为例,分析了设计中存在的问题,从人机工程、造型、色彩等因素入手,运用工业设计的相关方法与手段对其进行了设计研究,给出了设计方案效果图。掘进机造型设计的基本思路及研究结果可为我国该领域机械产品的自主研发提供参考。     

基于SolidWorks的机械产品造型设计

针对机械产品造型设计的特点,应用SolidWorks软件及其CAID模块PhotoWorks,对机械产品造型设计过程进行了说明,以蜗轮蜗杆减速器的造型设计为例,基于"形式美"法则,在SolidWorks中完成了减速器的造型设计,并输出了其效果图。由此证明SolidWorks软件适用于机械产品的造型设计。     

基于特征的机械产品造型研究

通过对机械产品特征造型设计过程的分析,建立了基于特征的产品信息模型,研究了以参数化造型技术构建产品特征的方法,论述了特征造型系统的结构及功能,阐明了应用系统实现机械产品特征设计的方法和步骤。     

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...     

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.     

Non-monotonic material contrast in scanning ion and scanning electron images

30 keV Ga⁺ focused ion beam induced secondary electron (iSE) imaging was used to determine the relative contrast between several materials. The iSE signal compared from C, Si, Al, Ti, Cr, Ni, Cu, Mo, Ag, and W metal layers does not decrease with an increase in target atomic number Z₂, and shows a non-monotonic relationship between contrast and Z₂. The non-monotonic relationship is attributed to periodic fluctuations of the stopping power and sputter yield inherent to the ion–solid interactions. In addition, material contrast from electron-induced secondary electron (eSE) and backscattered electron (BSE) images using scanning electron microscopy (SEM) also shows non-monotonic contrast as a function of Z₂, following the periodic behavior of the stopping power for electron–solid interactions. A comparison of the iSE and eSE results shows similar relative contrast between the metal layers, and not complementary contrast as conventionally understood. These similarities in the contrast behavior can be attributed to similarities in the periodic and non-monotonic function defined by incident particle–solid interaction theory.     

Application of Feature Extraction through Convolution Neural Networks and SVM Classifier for Robust Grading of Apples

This paper proposes a novel grading method of apples,in an automated grading device that uses convolutional neural networks to extract the size,color,texture,an...     

分布动态载荷识别的抗噪处理

针对正交多项式频域法在用多种响应对矩形薄板进行载荷识别中抗噪性较差的问题,综合运用平均法、矩阵预处理和奇异值截断法等方法对之进行改善,并引入空间映射的思想,将该方法的应用范围拓展为复杂的模型.利用仿真算例,证实了该方法具有较好的抗噪性.     

基于MELTAC-N平台的核电厂安全级DCS环网研究与测试

针对工程实践中环网通讯相关问题的处理缺乏理论基础及国产化安全级DCS平台的开发缺乏成熟经验借鉴问题,对基于MELTAC-N平台核电厂安全级DCS环网的软硬件实现进行了研究。提出了安全级DCS环网双环网冗余设计、光切换开关设计等硬件设计方法,以及以RPR协议为基础,采用全数据收发策略的软件设计方法。在CPR1000安全级DCS平台上对安全级DCS环网的可靠性及实时性进行了评价,并进行了容错能力、响应时间及响应时间稳定性测试验证实验。结果表明,基于MELTAC-N平台安全级DCS环网软硬件设计具有较好的容错能力及响应时间稳定性。     

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...     

End-to-End Multiview Gesture Recognition for Autonomous Car Parking System

The use of hand gestures can be the most intuitive human-machine interaction medium.The early approaches for hand gesture recognition used device-based methods....     

The laboratory simulation of abrasive wear

Abrasive wear has long been recognised as one of the most potentially serious tribological problems facing the operators of many types of plant and machinery; several industrial surveys have indicated that wear by abrasion can be responsible for more than 50% of unscheduled machine and plant stoppages. Locating the operating point of a tribological contact in an appropriate operational ‚map’︁ can provide a useful guide to the likely nature and origins of the surface degradation experienced in use, though care must be exercised in choosing the most suitable parameters for the axes of the plot. Laboratory testing of materials and simulations of machine contacts are carried out for a number of purposes; at one level for the very practical aims of ranking candidate materials or surface hardening treatments in order of their wear resistance, or in an attempt to predict wear lives under field conditions. More fundamentally, tests may be aimed at elucidating the essential physical mechanisms of surface damage and loss, with the longer term aim of building an analytical and predictive model of the wear process itself. In many cases, component surface damage is brought about by the ingress of hard, particulate matter into machine bearing or sealing clearances. These may be running dry although, more usually, a lubricant or service fluid is present at the interface. A number of standardised wear test geometries and procedures have been established for both two- and three-body wear situations, and these are briefly described. Although abrasive wear is often modelled as following an ‚Archard’︁ equation (i.e. a linear increase in material loss with both load and time, and an inverse dependence on specimen hardness) both industrial experience and laboratory tests of particularly lubricated contacts show that this is not always the case: increasing the hardness differential in an abrasively contaminated lubricated pair may not always reduce the rate of damage to the harder surface.     

ANGULAR DISTORTION ALLOWABLE VALUE AND ASSESS METHOD OF WELD ON COKE TOWER

A graph as the new engineering method for estimate the safety of bulging deformation of coke tower is proposed. Through stresses analysis of circumferential weld of coke tower and comparing the stresses produced by pressure with heat stress of steady state, residual stress, bending stress produced by both itself weight and wind loads, it showed that the stresses produced by pressure on the angle distortion are the main factor of equivalent stress of the combined stress. After comparing four kinds of stress controlling conditions, the relation to stress with depth of angular distortion, grade of curvature of angular distortion and half of region of angular distortion has been inferred. Graph of deformation allowable value of coke tower for different condition by angular distortion and half of region of angular distortion has been plotted. The five steps for its engineering use have been explained. The lighter the grade of curvature is, the larger of bulge allowance, may be, and the bigger of depth of angular distortion may pose too. For the coke tower with a popular structure of Dg 5 400 mm×28 mm, the result by graph is nearly more than the result of two formulas formed by other research, the error is less than 7.0%. But, the graph can be easily applied to different size of angular distortion.