基于COSMOS/Works的破碎机主轴有限元分析

针对锤式破碎机转子的结构,对其主轴受力状况进行了理论分析,运用有限元分析软件COSMOS/Works进行了静力分析,得出主轴在载荷作用下的应力和变形分布规律。根据分析结果,对破碎机主轴进行了优化设计和再分析。分析结果表明,所设计的主轴完全满足其强度、刚度和稳定性要求,同时该方法为其他机械产品优化设计提供了参考。     

Key considerations for developing corporate and operational approaches for managing the small building works portfolio of large client organizations

Many large organizations, which act in the capacity of clients to the construction industry, own and occupy extensive, diverse and often geographically dispersed property estates. To maintain their upkeep and use, these estates often require very considerable annual expenditure on maintenance, alterations, refurbishment and small-scale new building works. Activities encompassing these types form the category of small building works, a sub-sector of the construction industry which amounts to around £9 billion, or 20%, of annual UK total construction output. The effective management of small building works in the context of any organization with large property holdings is essential, as better management of the small building works portfolio can contribute significantly to the business of the organization. This paper contributes new data and adds to the synthesis of findings from research studies into small works, supported by governmental and industry sources and conducted over a 10-year period. It aims to assist in the development of corporate and operational approaches for managing the small building works portfolio of large organizations by highlighting key considerations. These are linked to a dynamic control cycle, or system, to assist organizations in implementing practice based on the considerations made.     

Management of small building works

This paper focuses on the management dimension of small building works. The paper presents a subset of findings from a major research study, supported by governmental and industry based sources, which investigated the efficiency and effectiveness of procurement methods, organizational systems and management approaches to small works and minor maintenance projects. The findings indicate that management for small works must be exerted at two levels. One is within the organization of the works themselves. The second is the development of a framework and organization which considers the implication of the works upon the organization's ongoing business. Effective small works management requires that an organization responds promptly to an identified situation, determines the cost of the work, ensures that the work is undertaken successfully, and gives value for money within the context of the organization's current business circumstance.     

基于Lon Works技术的现代智能测控系统创新实验设计

指出该设计是"机电一体化"高新技术的最高端应用和最前沿发展领域,分析了该技术目前在国内外蓬勃发展的研究概况,给出了本集成设计中15项创新实验项目的主要内容、本设计实现的基本功能框图和物理连线结构框图、本设计的研究重点和网络拓扑框图,说明了本设计的创新点和应用价值.     

美国《1990年建筑作品版权保护法》评述

在1990年12月以前,建筑作品是作为绘画、图形和雕塑作品获得版权保护的.但是建筑本身被认为是一种实用物品,因而不受版权的保护.然而在1989年3月1日,美国加入《伯尔尼公约》.为了履行公约义务,美国国会通过了《1990年建筑作品版权保护法》(简称AWCPA),对《1976年版权法》进行了相应的修正,建筑作品作为独立的一类作品受版权法的保护,拓宽了建筑作品的保护范围,对建筑作品侵权的认定标准也发生变化.     

“和合文化”视角下的王澍建筑研究

“和合文化”是中华传统文化的精髓,熏陶着中华民族,已渗透进民族的骨子里。它具有融合冲突、化解矛盾、弘扬个性、创造新生的特征。建筑设计目的在于反映建筑与环境、人的关系,实现建筑、环境、人的相互融合。通过对王澍建筑作品的研究分析与深入解读,从建筑与自然地理、历史文化、人文聚落、人社会的环境关系四个角度,探讨了其作品中对“和合”文化的反映与思考,进而研究“和合文化”对其建筑思想和设计手法的重要影响。     

颚式破碎机数字化开发平台

在Solid Works平台上采用VB及API技术开发出颚式破碎机数字化开发平台.介绍了颚式破碎机数字化开发平台的结构、专家系统在破碎机方案设计中的应用及颚式破碎机结构参数的优化设计方法.该平台集设计计算、绘图、参数优化、分析于一体,实现了并行及敏捷设计.     

太原市洪涝灾害与防洪工程整治

:本文介绍了太原市的大洪涝灾害、防洪现状和存在问题 ,提出了防洪整治措施     

黄河小北干流沿岸防护工程的维护加固

黄河小北干流为黄河禹门口－潼关段，自70年代至今，两岸现有河道整治工程32处，工程长度129．01km，对河势起到了一定的控导作用，但也存在有部分已建工程防洪标准低，堤身断面达不到设计标准，堤岸滑坡塌岸等问题。本文就现有工程状况提出了维护加固措施及施工注意事项，并对今后沿河护堤的建设提出了建议。     

汉江上游水能资源开发对南水北调中线工程的作用

着重讨论了开发汉江上游水能资源对我国南水北调中线工程的作用与影响，并提出了建议。