关键词： 测量   定义   塑料  

标准号: ASTM D 4092-2001

摘要： 1.1 This terminology is a compilation of definitions and descriptions of technical terms used in dynamic mechanical property measurements on polymeric materials, including solutions, melts, and solids. Terms that are generally understood or defined adequately in other readily available sources are either not included or sources identified.1.2 A definition is a single sentence with additional information included in notes. It is reviewed every five years and the year of the last review or revision is appended.1.3 Definitions identical to those published by another standards organization or ASTM committee are identified with the abbreviation of the name of the organization or the ASTM committee; for example, ICTA is the International Conference on Thermal Analysis and- ISO is the International Standards Organization, Specifically ISO 472: 1988 (E/F) document.1.4 Descriptions of terms specific to dynamic mechanical measurements are identified with an italicized introductory phrase. Note 1—This terminology is similar to ISO 6721-1 1994 in title only. The ISO document cites only 13 terms and this terminology defines 49 relevant terms.

关键词： 液压作动器   机械系统   机械动力学   机械学   柔性机构   时变系统   控制系统   变拓扑结构   周期运动  

关键词： 辅助电动机   安全   危害   操作说明书   整地机具   事故预防   振动   作标记   农业机械   机械工程   动力驱动   噪声(环境的)   安全措施   设计   安全要求   林业   安全工程   动力传动系统   机动  

标准号: DIN EN 708-2001

摘要： The document additional safety requirements to DIN EN 708:1996 which are related to protection of the tools and the location of the controls.

关键词： 流体技术   工程师   认证  

标准号: ANSI FPSCS 1-R 2-2001

摘要： Establishes the procedure for: - determining the knowledge and skill requirements for Certification; - expressing those requirements in the form of a written or hands-on test or both; - administering the tests; - certifying applicants who satisfy the respective requirements for each category; -appealing denial of Certification. Includes the categories: Fluid Power Industrial Hydraulic Mechanic, Mobile Hydraulic Mechanic, Pneumatic Mechanic, Industrial Hydraulic Technician, Mobile Hydraulic Technician, Pneumatic Technician, Hydraulic Specialist, Pneumatic Specialist and Engineer. Provides a procedure for measuring and recognizing an individual's skills and knowledge as related to the technical aspects of Fluid Power and Motion Control Technology.

关键词： 机械零部件   性能试验   认可试验   石油   质量控制   天然气   电绝缘   设计   挠性联轴器   机械传动系统   联轴器   转速   石油技术   检验   动力传动系统  

标准号: BS EN ISO 14691-2000

摘要： 1 This International Standard specifies the requirements for couplings for the transmission of power between the rotating shafts of two machines for general purpose applications in the petroleum and natural gas industries. Such applications typically require couplings to transmit power at speeds not exceeding 4 000 r/min, between machines in which the first lateral critical speed is above the running speed range (stiff-shaft machines). It may, by agreement, be used for applications outside these limits. 2 This International Standard is applicable to couplings designed to accommodate parallel (or lateral) offset, angular misalignment and axial displacement of the shafts without imposing excessive mechanical loading on the coupled machines. Couplings covered include gear (and other mechanical contact types), metallic flexible-element and various elastomeric types. Special types such as clutch, hydraulic, eddy-current, rigid, radial spline and universal joint types, are not covered. 3 This International Standard covers design, materials of construction, inspection and testing of couplings and methods of attachment of the coupling to the shafts (including tapered sleeve and other proprietary devices). This International Standard does not define criteria for the selection of coupling types for specific applications. 4 It is recommended that, when users fit new couplings to existing equipment which are different from those originally fitted, they consult the manufacturers of the driving or driven equipment. NOTE 1 In many cases, couplings covered by this International Standard are manufacturer's catalogue items. NOTE 2 For the following applications, the use of ISO 10441 is recommended : — large or high-speed machines that may be required to operate continuously for extended periods, are often unspared and are critical to the continued operation of the installation (special purpose applications); — machines in which the first lateral critical speed is less than the maximu

关键词： 动力机械   基础地基   动力特性   测试规程  

标准号: YS 5222-2000

关键词： 气蚀穴泡   穴泡群   冲击式旋转机械   动力学特性  

摘要： 建立了描述冲击式旋转机械中穴泡群特性的数学模型。该模型的牲征为：认为火泡是旋转机械中液体的压力脉动引起的。最后，给出了相对穴泡产生压力与斯特罗准数（Ｓｔｒｏｕｈａｔ）的关系曲线。

关键词： 机械系统动力学   优化设计   遗传算法   参数  

摘要： 本文针对机械系统动力学参数优化设计存在的问题提出了一种机械系统动力学参数优化设计的遗传算法，并通过一个算例证明了该方法的有效性。

关键词： 电力系统   测量技术   数据采集系统   动力工程   网络实验室   变送器   失真信号   实用分析   抖动测量   高压系统  

摘要： Y2000-62040-644 0021412电力系统的测量技术(1)(含4篇文章)=Session TA3:Measurement in power systems I[会,英]//Proceedingsof 16th IEEE Instrumentation and Measurement Tech-nology Conference,Vol.2.-644～666(F)本部分收录了4篇文章。题目是:在高压系统中用于失真信号的电压.电压变送器。利用数据采集系统对电网中电压抖动进行精确测量,用于抖动测量的数字方法:算法和实用分析,工业网络实验室中的测量技术。

关键词： 动力学模型   减摇机构   机械式   集装臬   起重机  

摘要： 对某港机公司制造的机械式减摇装置的组成和减摇机理进行了分析 ,建立了相应的动力学模型 ,并结合实例用数值方法求得了平衡梁和吊重的摆动曲线。数值计算和测试结果都表明该装置具有较好的止摆效果。而且 ,文中提出的理论为此类型减摇机构的设计提供了依据 。