基于TRIZ和Pro/Innovator 6.0的超薄轴承套圈外径测量系统的创新设计

介绍TRIZ体系和计算机辅助创新软件Pro/Innovator 6.0的应用流程。以Pro/Innovator 6.0为平台,对超薄轴承套圈外径测量仪现存问题进行组件分析和问题分解,并根据创新原理模块得出多种解决方案,最终进行方案评估。通过超薄轴承套圈外径测量仪设计问题实例的解决过程,探讨应用计算机辅助创新软件解决工程问题的途径。     

采用TRIZ和Pro/Innovator的开关盒装配工艺创新设计

介绍TRIZ体系和计算机辅助创新软件Pro/Innovator的应用流程。以Pro/Innovator 6.0为平台,对开关盒装配现存问题进行组件分析和问题分解,根据创新原理模块得出多种解决方案,并进行方案评估。通过开关盒装配问题实例的解决过程,探讨应用计算机辅助创新软件解决工程问题的途径。     

基于TRIZ和Pro/Innovator的汽封技术创新设计

针对汽轮机汽封系统目前存在的问题,应用TRIZ理论和计算机辅助创新软件Pro/Innovator 5.0,对其代表性问题的成因进行深入分析,提取问题中存在的技术矛盾和物理矛盾,找到了对应的创新原理,再结合对技术系统自身资源的挖掘利用,创新性地构思出利用蒸汽压力调整轴向浮动式可调汽封的概念性原理方案。     

基于Pro/Innovator的功能分析与专利规避

在当今产品快速更新的时代,企业产品进入市场所面临的专利壁垒越来越多,新产品的发明也越发困难。为适应市场的发展步伐需要系统化的创新方法来规避现有的专利,在保证不侵犯已有产品专利权的前提下,借助计算机辅助创新软件高效快速地开发新产品。提出了基于计算机辅助创新软件Pro/Innovator的功能分析与创新设计流程,以某轨检小车为案例,通过借助Pro/Innovator的系统分析模块建立其功能模型,对其进行系统的分析和评价,应用组件价值分析得出产品改进的方向,结合裁剪策略对产品进行创新设计,最后达到专利规避的效果。     

基于TRIZ和Pro/Innovator改造刃具干磨工艺系统

应用TRIZ理论和亿维讯研发的计算机辅助创新(CAI)软件Pro/Innovator5.0对问题进行分析和创新后,只需对刃具的干磨工艺系统进行简单改造,就可以有效降低磨削表面温度,减小磨削时的振动,解决磨削效率低和刃磨表面粗糙的问题,大幅提高工人操作的安全性和砂轮的耐用度。     

基于TRIZ和Pro/Innovator平台的石油机械产品创新设计

针对石油钻井技术中空气钻井工艺施工过程中出现的排砂弯管受冲蚀磨损的问题,利用TRIZ方法,借助于Pro/Innovator计算机辅助创新平台,对项目进行了问题描述、技术系统分析、问题分解、矛盾分析、技术方案评价等一系列TRIZ方法的标准求解分析,最终为该产品的改进设计提供了三条可行的创新解决方案,并进而阐述了利用Pro/Innovator平台求解的一般方法和流程,为石油机械产品的创新设计方法提供借鉴。     

基于Pro/Innovator提高太阳能电池硅片预清洗度的研究

针对太阳能电池硅片在切片加工过程中预清洗时间长、效果差,尤其是硅片间中部和上部的SiC颗粒清洗困难、不易清除等问题,基于计算机辅助创新平台Pro/Innovator,对硅片预清洗系统作系统分析,找到了一个有害因素和两个不足因素,同时利用Pro/Innovator因果分析法分析了硅片预清洗度低的原因.基于TRIZ理论,对...     

基于Pro／Innovator的滚动转子式压缩机减振降噪研究

Pro／Innovator是一种基于知识的计算机辅助创新应用软件,主要目标是为解决技术问题提供帮助。可通过多种方式提供此辅助,包括技术系统分析、问题定义、解决方案查询、备选方案评价、创建专利申请以及报告生成。针对空调用滚动转子式压缩机振动噪声过高的问题,运用Pro／Innovator寻找解决方案并进行评价。     

基于Pro/Innovator油缸机械手摆臂精度问题的解决方案分析

介绍Pro/Innovator计算机辅助创新设计平台解决问题的流程和方法,以油缸机械手摆臂的精度问题为案例,应用Pro/Innovator和TRIZ创新方法原理,运用小人法建立分析问题模型、设定目标,对模型进行功能分析、裁剪分析和因果分析。以3组对立技术矛盾为入手点对问题进行求解,运用创新知识信息库,形成7个方案;建立方案评价模型,分析方案价值,得到最优方案。经验证,优选方案很大程度上提高了机械手的摆臂精度,对轴承磨床连续自动上下料起到了促进作用。     

基于Pro/Innovator提高太阳能电池硅片预清洗度的研究

针对太阳能电池硅片在切片加工过程中预清洗时间长、效果差,尤其是硅片间中部和上部的SiC颗粒清洗困难、不易清除等问题,基于计算机辅助创新平台Pro/Innovator,对硅片预清洗系统作系统分析,找到了一个有害因素和两个不足因素,同时利用Pro/Innovator因果分析法分析了硅片预清洗度低的原因.基于TRIZ理论,对影响硅片预清洗效果的不同问题进行了分析,总结出了切实可行的解决方案,提高了硅片的清洗度和生产效率.     

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.     

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....     

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。     

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.