结构化设计

This system embodies the advantage of SolidWorks in solid modeling and assembly considering the practical considerations in the electrical field, is a convenient and efficient visual tool for engineer to design the structure of electrical equipment.

该系统既发挥了SolidWorks的三维造型及装配的优势，又考虑到了成套电器行业的具体情况，为工程人员设计开关柜结构提供了一个方便高效的可视化辅助工具。

Key Laboratory of Structural Engineering and Vibration, Ministry of Education, Beijing 100084,China.

准确预测强震作用下结构的弹塑性响应，是实现性能化抗震设计的主要工作和目前所面临的主要困难[1] -[2] 。

The motor's overload ability is exerted and the stable temperature rising of the motor is realized, which fulfills the demand of numerical control electrical screw press.To fulfill exact control on strike energy and block position, a high performance numerical control software system is essentially needed.

为此，作者将模块化的程序设计方法引入到数控电动螺旋压力机的软件系统中，各个功能模块相互独立，实现了软件系统的开放性和体系结构可复用性的目的。

Based on the practice of the use of φ95mm subsurface sucker rod pump in Shengtuo Oilfield in recent years, the causes of the failure of the pump are analyzed, and relevant precautions are put forward:(1)selecting oil wells with sufficient fluid supply for pumping;(2)under the condition of the pump efficiency being the same, the submergence depth of the pump being somewhat larger than that of the small pump, and 450～500m being feasible;(3)adopting Grade H ultrahigh-strength rod string and fixing a sinker bar at the bottom of the rod string;(4)selecting long stroke and low pumping speed, and more than 5m stroke and less than 6min-1 pumping speed being recommended;(5)adopting zirconium oxide valve ball and seat ＋ spray welded plunger ＋ nitrided barrel.

根据胜坨油田近几年采用φ95mm有杆抽油泵提液的实践，分析了造成这种抽油泵失效的原因，包括与其配套的脱节器失效、抽油杆断脱、泵漏、电动机不配套和生产管理不善等。为增强泵的提液能力和工作可靠性，提出5 项预防措施：(1)选择有充足供液能力的油井；(2)在保持相同泵效的情况下，泵的沉没度应略大于小泵，推荐按450～500m设计；(3)采用H级超高强度抽油杆柱，并在杆柱底部配置一定重量的加重杆；(4)采用长冲程、低冲次的参数匹配，推荐光杆冲程大于5m，冲次小于6min-1；(5)为提高泵筒、活塞和阀座的防腐耐磨性，推荐采用&氧化锆阀球和阀座+喷焊柱塞+氮化泵筒&的结构形式。

Through the establishment of the parameter software, the customization and design speed can be improved, a lot of time for repeat plot is saved, a beneficial tool for the optimization of wheel rim is provided.

通过参数化软件的建立，提高产品的可定制性和设计速度，减少大量的重复的绘图工作，为钢圈的结构优化提供了有利的工具。

The key problems on the performance-based fire-resistant design of steel structures are discussed.

并探讨了钢结构性能化抗火设计需解决的关键问题。

It has an object-oriented design for easy customisation and extension, and an applet architecture that means that you can create an applet in a matter of minutes.

它是面向对象设计，使得容易定制化和扩展；有applet体系结构，这意味着你能够创建一个与测定时间有关的applet程序。

New simple and easily implementable observers are given whose convergence properties are guaranteed. Observer-based feedback controller is proposed for the systems.

构造了一种新的结构简单且容易实现的全局状态观测器，并设计了非线性离散系统基于状态观测器的反馈稳定化控制器。

For improving the static and dynamic seal properties of the magnetic fluid seal, the correlation between the seal capacity and the residual induction intensity and coercive force of permanent magnet has been studied. An ANSYS model for analyzing parametrically magnetic path was developed and optimize design of the magnetic path parameters has also been carried out based on the model and simulation analysis.

为了提高磁流体动、静密封的能力，文中探讨了磁性材料中剩余磁感应强度和矫顽力与磁流体密封能力之间的相互关系；建立了基于磁路参数化的ANSYS模型，通过磁路的仿真，数值计算实现了磁流密封结构的优化设计。

Resins having linearly branched structures can be synthesised with specific processes of synthesis and correct formulations.

采用特殊的合成工艺和正确的配方设计，可以合成出具有线型支化结构的树脂。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。