共查询到20条相似文献，搜索用时 609 毫秒
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罗平 《广东职业技术师范学院学报》2014,(11):53-56
提出了一种新型结构的直线超声电机,对其驱动原理进行了简要分析;利用有限元软件ANSYS对复合振子进行模态分析和谐波响应分析,计算出复合振子结构尺寸改变对其一阶纵向伸缩和二阶弯曲振动模态频率的影响,得出了两模态频率对结构参数的相对灵敏度;有限元分析结果为复合振子的结构优化设计和电机输出性能的预估提供了有益的参考,据此设计出符合模态简并的复合振子结构及电机的总体结构. 相似文献
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在内转子电机的基础上,进一步阐述了外转子开关磁阻轮毂电机冲片的设计方法,并对其进行理论推导。给出了冲片参数的选取思路。通过一个250W外转子开关磁阻电机设计实例,初步验证了该方法的有效性。 相似文献
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周恩庆 《荆门职业技术学院学报》1998,13(1):52-56
该文对一类无数据电机修理从测量、计算、设计到修复作了一些论述,文中重点对一台具体型号电机定子绕组、绕线木模等数据进行设计计算,得出无数据电机修理的一般方法。 相似文献
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智能化电机测功机实验装置的研制 总被引：1，自引：0，他引：1
对他励式电机测功机进行研究，研制出电机测功机实验装置，并设计出单片机数据采集系统对电机转矩进行智能化测量，为学生电机实验提供了良好的条件。 相似文献
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研究了一个基于光电门控制的光源分光系统,设计了单束激光工作时分光盘协调工作模式,分析了分光控制系统工作原理及3种光路工作方式,并对带动分光盘的可逆电机设计了2种工作功能,探讨了可逆电机的响应失真及校正方法. 相似文献
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为了保证电机长期运行可靠性和输出转矩能力,永磁电机温度场的精确计算是其设计与开发的基础,而常规数值离散过程需要进行复杂的数学变换,掌握其核心机理所需的前置课程多、学习难度大。有限公式法离散方程物理意义清晰明确,将之应用于教学可提高学生对数值算法的基本思想及分析方法的理解。通过对基于有限公式法的实际工程案例分析讲解,可培养学生应用数值算法解决复杂工程案例的能力。该文分析和推导了基于有限公式法的永磁电机温度场数学模型,分析其物理意义;搭建了基于有限公式法的永磁电机三维温度场数值计算平台,为永磁电机设计类课程中温升分析与冷却设计提供了有效的教学条件。 相似文献
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设计采用双电机组合模式作为四轮电动车的驱动,通过多路控制器对组合电机中每个电机负载状况进行分析,将电流分别导入组合电机中,实现电流分流驱动。通过电机功率检测和整车测试,验证了该设计方案有效提升了电机效率平台,加大了控制器的可靠性,降低控制系统制造成本。 相似文献
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对任务引领型模块化《电机与电力拖动》课程改革实施过程进行了分析,并通过阐述学习情境的设计,探讨了学生专业知识能力及核心能力培养,进一步阐述了任务引领型模块化《电机与电力拖动》课程改革可以有效地提高学生的综合能力。 相似文献
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秦新燕 《湖北第二师范学院学报》2012,(8):54-56
介绍了温度场分析的基本原理,在已有短行程直线电机的设计基础上,运用ANSOFT软件对电机进行三维温度场建模,对电机内部线圈进行热分析,计算在不同电流下电机稳定运行后各组线圈的温度变化情况,得到电机内部温度场分布图。另外也分析了冷却水的流换热系数对温度变化的影响,这些为后续对电机内部的冷却系统设计,找出最佳的冷却水循环路线,进行电机的优化设计提供参考。 相似文献
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Symmetry breaking phenomena exist in many mechanical products. Based on an analysis of the variation in physical features in several design examples, mechanical symmetry breaking concept systems that consist of general requirements, working principles, and cross-scale mechanical structures are established from the macro to micro levels and in both machine assembly and the design of parts. The connection between symmetry breaking and product requirements is systematically studied. Eight design principles using symmetry breaking to achieve mechanical functions, performance, and constraints are proposed. The method and process of applying symmetry breaking in mechanical concept design are described. These principles, method, and process are then used in the concept design of a gear chain. With symmetry breaking characters, the transmission stability of the newly innovated gear chain is greatly improved, compared with traditional ones. 相似文献
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面向色盲人群的媒体界面设计策略与流程 总被引：1，自引：0，他引：1
色盲人群作为远程学习者的一个群体的色彩需求往往被媒体界面设计者所忽视.本文从调查色盲人群在媒体界面设计方面的色彩需求入手,分析满足需求的策略和方法,提出了远程教育中满足该类人群的媒体界面设计原则,并以系统方法为指导,提出了面向色盲人群的界面设计的流程:需求分析报告、概念模型设计和详细界面设计三个阶段.作者希望本研究用于远程教育过程中的媒体界面设计,为色盲人群远程学习提供公平的学习机会. 相似文献
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针对传统的教学方式不能充分调动学生学习兴趣的现状,采用基于工作过程的教学法,从课程设计理念、设计思路方面改革,促进学生创新意识和实践能力的提高,形成教学相长的局面。 相似文献
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1 Ｉｎｔｒｏｄｕｃｔｉｏｎ ＴｈｅｓｐａｔｉａｌＧｒｅｅｎ’ｓｆｕｎｃｔｉｏｎｓｏｆｍｕｌｔｉ ｌａｙｅｒｅｄｍｅｄｉａａｒｅｕｓｅｆｕｌｉｎａｎａｌｙｓｉｓｏｆａｎｔｅｎｎａａｎｄｉｎｔｅｇｒａｔｅｄｃｉｒｃｕｉｔｓｔｒｕｃｔｕｒｅｓ.Ｔｈｅｙａｒｅｃｏｎｓｔｒｕｃｔｅｄｉｎｔｗｏｓｔｅｐｓ.ＴｈｅｆｉｒｓｔｉｓｔｏｄｅｒｉｖｅｔｈｅｓｐｅｃｔｒａｌＧｒｅｅｎ’ｓｆｕｎｃｔｉｏｎ .ＴｈｅｓｅｃｏｎｄｉｓｔｏｍａｋｅｉｎｖｅｒｓｅＦｏｕｒｉｅｒｔｒａｎｓｆｏｒｍｏｆｔｈｅＧｒｅｅｎ’ｓｆｕｎｃ ｔ… 相似文献
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简述了工业产品概念设计的主要原理和功能;概念设计的特点,介绍了概念设计的过程和步骤;强调创造性思维、技术创新和虚拟现实技术在概念设计过程中的重要作用;结合创造性思维和技术创新的内在联系,阐述了虚拟现实技术在概念设计中的必要性和应用前景,三者应用于产品概念设计中,能加快产品开发的进程,更好地满足市场需求。 相似文献
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A Pedagogy of the Concept: Rereading an Architectural Convention through the Philosophy of Deleuze and Guattari 
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下载免费PDF全文 In this article, we seek to unpack and enrich the notion of the design concept. We do this through the use of Gilles Deleuze and Felix Guattari's ‘concept’ in its philosophical specificity to critique less‐effective uses of the design concept. In particular, we investigate the idea that a concept is actually an aggregation of many concepts that can be seen to have a virtual consistency as a way to reframing more limited, typical, design concepts – used as justification, explanation, clarification or excuse. Our interest here is to explore how concepts can become much more useful throughout the process of design by drawing linkages between the concept and the workings of the creative process itself. In other words, we see the concept, parsed philosophically, as fusing with design thinking; and by taking advantage of this coupling each strengthens the other. Ultimately, we claim that a richer view of language and a more perfomative processes of making (diagramming) drive this coupling; and when it is working, the design concept becomes a much more useful instrument for designing. 相似文献
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Jianhua Liu 《Educational technology research and development : ETR & D》2013,61(2):197-215
This article reports the design, development, and evaluation of an online software application for assessing students’ understanding of curricular content based on concept maps. This computer-based assessment program, called the Assessment Agent System, was designed by following an agent-oriented software design method. The Assessment Agent System is composed of five types of software agents: instructor agent, student agent, management agent, assessment agent, and reporting agent. Software agents in the system, through communication and cooperation, collectively provide the functionalities of user-system interaction, user management, task authoring and management, assessment delivery, task presentation, response collection, automatic assessment, and reporting. One-to-one evaluations and group evaluations were conducted to reveal students’ perceptions of the Assessment Agent System. Measures of visual clarity, system functionality, consistency, as well as error prevention and correction indicate that the Assessment Agent System is a useful tool for large-scale assessment based on concept maps. Through the process of design, development, and evaluation of the Assessment Agent System, this study demonstrates the agent-oriented approach for producing educational software applications. Furthermore, this research explored the concept map assessment method for the Assessment Agent System. When node terms and linking phrases are provided, the assessment of student concept maps can be conducted automatically by comparing student concept maps with the criterion concept map, proposition by proposition. However, the validity of the proposition-comparing method depends on the accuracy and thoroughness of the criterion propositions. Therefore, assessment criteria need to be continually refined and improved through the examination of student-created propositions. 相似文献
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阐述了自底向上设计和自顶向下设计方法的区别。通过概念设计、产品布局设计、骨架设计、零件设计的设计流程完成减速器的自顶向下设计。实践证明,Top-down的设计思想和方法支持并行工程和协同设计,提高设计效率,缩短设计周期。 相似文献