TRIZ理论对QFD中问题的改进

通过研究TRIZ理论在QFD中的应用及发展现状,针对传统QFD技术仅能提出问题而不能解决问题的缺陷,研究提出了以QFD的质量屋为基础、以TRIZ理论为问题解决工具,改善传统QFD中的几个关键问题的方法,最后结合具体案例,实现了TRIZ理论在QFD中的应用。     

面向TRIZ的专利知识本体建模与应用

面向发明问题解决理论(TRIZ)的专利本体库的构建有助于TRIZ创新设计与专利检索.对专利说明书组成部分与TRIZ不同原理之间的映射关系进行分析,并在此基础上提出面向TRIZ的专利本体建模模型.通过对铣床专利的案例分析,阐述了本体的具体构建过程.最后介绍面向TRIZ的专利本体的应用.     

基于TRIZ方法设计的一种制动活塞行程自动补偿结构

介绍了一种利用TRIZ(创新问题解决理论)方法设计的制动活塞行程自动补偿结构,利用实际的产品设计案例来阐述TRIZ方法在工程机械设计技术创新工作中的推广应用价值,促进TRIZ研究与应用在产品开发与技术问题解决过程中的普及推广。     

在继续教育中引入TRIZ理论的实践探索

论文提出将TRIZ引入到继续教育的机械设计类课程体系中,以充分发挥成人学生的学习积极性和创造性。通过教学案例阐释TRIZ理论的程序与步骤,并对TRIZ工具在教学过程中的具体应用进行分析,帮助成教学生有效突破传统思维的惯性,增强创新设计能力。     

基于TRIZ效应理论的注塑机注射机构创新设计

根据企业产品创新的迫切需要,以实现产品设计创新为目的,系统地研究了基于TRIZ效应理论机电产品原理方案的产生过程.介绍了TRIZ效应理论的一些基本内容,总结了在解决实际工程问题中应用TRIZ效应理论的方法和步骤.通过利用TRIZ效应理论对注塑机注射机构存在的问题进行分析,提出了提高注塑机能耗效率和可靠性的创新性方法,验证了理论的可行性.     

基于TRIZ矛盾矩阵法对提高Pro/E课程教学质量的研究分析

通过运用TRIZ理论中的矛盾矩阵法,尝试研究如何提高Pro/E课程教学质量.并且通过分析研究过程,进一步认识、理解TRIZ理论,体会TRIZ理论的实践意义,提高运用TRIZ理论分析解决问题的能力.     

TRIZ理论在飞机结构设计中的应用研究

TRIZ理论是一种创新设计的理论,一种系统的方法学.通过对TRIZ理论的主要内容和工程应用的介绍,结合飞机结构设计的特点和实例分析,表明TRIZ理论可以用于解决飞机结构设计中的问题.针对国内创新设计理论的滞后,引入TRIZ理论,可以适合国内飞机结构设计的现状,在今后的飞机结构设计中将有重要的应用前景.     

基于TRIZ理论的产品创新设计

源自前苏联的TRIZ理论是解决创新问题的理论.文中对TRIZ理论进行了阐述,对TRIZ理论在产品创新设计过程中的应用进行了探讨.应用该理论可快速有效地找到问题的解决方案,并以自行车的创新设计为例说明了TRIZ理论的应用方法和程序.     

基于TRIZ理论的产品结构创新设计

本文介绍了TRIZ理论的理论体系和工具体系,并结合洗衣机设计实例以TRIZ理论体系中的技术矛盾与创新原理为指导,应用TRIZ工具体系中的矛盾矩阵列洗衣机结构进行了改进,取得了较好的效果.结果表明,TRIZ理论为解决机电产品设计冲突、优化其结构提供了一有效工具.     

集成TRIZ的产品生态设计方法研究

针对产品生态设计过程中的创新问题,提出一种集成发明问题解决理论(Theory of inventive problem solving,TRIZ)的产品生态设计方法。该方法结合案例库和专利库,利用生态效率要素和TRIZ工程参数关联表构建矛盾矩阵,运用TRIZ工具进行求解,并对生成的多个备选方案进行评价,确定最优解。同时研究案例的检索方法以提高检索有效性,分析技术进化趋势以启发设计工程师设计灵感,构建计算机辅助设计系统以弥补人工不足,这些方法都能有效提高生态设计的效率和成功率。通过差速器摩擦片的设计案例验证了该方法的有效性。     

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.     

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。     

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.     

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...