室内照明

影室灯遥控装置【专利】／美亚电子／／CN2672689Y。本实用新型属于影室灯具的控制装置的机械结构件。本结构件具有遥控接收器结构组件、连接座件和影室灯壳体；遥控接收器结构组件具有显示器外壳、摇臂杆件和球头座件；显示器外壳与摇臂杆件的上端通过连接件而有阻转动连接，     

基于特征域和结构组件的CAD/CAE集成建模方法

为有效降低设计人员的认知负担,提高集成建模效率,提出并实现了一种计算机辅助设计/计算机辅助工程集成建模方法.该方法通过特征域定义实现模型领域知识的自然分类,构造结构组件作为特征载体,将领域知识应用于特征求解,在结构组件内部约束和外部关联两个层次上建立序列化建模过程;利用特征关联矩阵进行特征关联动态管理,实现模型修改的特征联动,建立了完整的产品计算机辅助设计/计算机辅助工程集成模型.基于该方法开发了一种针对建筑钢结构工程产品的分析系统,通过网架模型的设计实例,验证了该方法的正确性和有效性.     

空客A350上的复合材料增多

空中客车公司继推出A380之后,规划设计中的下一代商用飞机将加大使用复合材料的数量。据欧洲航空公司称,今后几年内将开发的新型A350飞机中占总质量52%的结构组件将会采用复合材料来制造,主要是碳纤     

Application of Improved Hybrid Interface Substructural Component Modal Synthesis Method inVibration Characteristics of Mistuned Blisk

The large and complex structures are divided into hundreds of thousands or millions degrees of freedom（DOF） when they are calculated which will spend a lot of time and the efficiency will be extremely low. The classical component modal synthesis method （CMSM） are used extensively, but for many structures in the engineering of high-rise buildings, aerospace systemic engineerings, marine oil platforms etc, a large amount of calculation is still needed. An improved hybrid interface substructural component modal synthesis method（HISCMSM） is proposed. The parametric model of the mistuned blisk is built by the improved HISCMSM. The double coordinating conditions of the displacement and the force are introduced to ensure the computational accuracy. Compared with the overall structure finite element model method（FEMM）, the computational time is shortened by23.86%–31.56%and the modal deviation is 0.002%–0.157% which meets the requirement of the computational accuracy. It is faster 4.46%–10.57% than the classical HISCMSM. So the improved HISCMSM is better than the classical HISCMSM and the overall structure FEMM. Meanwhile, the frequency and the modal shape are researched, considering the factors including rotational speed, gas temperature and geometry size. The strong localization phenomenon of the modal shape’s the maximum displacement and the maximum stress is observed in the second frequency band and it is the most sensitive in the frequency veering. But the localization phenomenon is relatively weak in 1st and the 3d frequency band. The localization of the modal shape is more serious under the condition of the geometric dimensioning mistuned. An improved HISCMSM is proposed, the computational efficiency of the mistuned blisk can be increased observably by this method.     

基于结构组件库的MEMS概念设计方法

提出了一种基于结构组件库的MEMS概念设计方法。给出了结构组件的表征形式,探讨了基于功能分解的结构组件模型获取方法,借以形成支持概念设计的结构组件模型库。阐明了MEMS概念设计时如何通过行为匹配自动检索出相关组件及其行为链组合、通过对行为链组合进行功能结构细化获得备选的器件方案。结合航空及空气动力学领域急需的MEMS微型剪应力传感器实例对该概念设计方法进行了阐述。研究表明,该方法对于提高MEMS概念设计效率及方案创新能力、促进MEMS概念设计工具化有积极作用。     

适应性强且结构紧凑

选择安全继电器结构组件还是选择结构紧凑的安全控制装置？是否可以不需要购买软件就能够使安全控制装置具有灵活性？Schmersal公司研发制造的安全可靠且结构紧凑的控制装置便能够提供这种可能性,该控制装置装有4个预组态实用程序,能够满足多种使用的可能性。