检索范围:
排序: 展示方式:
Design and applications of morphing aircraft and their structures
《机械工程前沿(英文)》 2023年 第18卷 第3期 doi: 10.1007/s11465-023-0750-6
关键词: morphing aircraft additive manufacturing lattice structure smart material flexible structure flexible skin
Design concepts of an aircraft wing: composite and morphing airfoil with auxetic structures
P R BUDARAPU,Sudhir Sastry Y B,R NATARAJAN
《结构与土木工程前沿(英文)》 2016年 第10卷 第4期 页码 394-408 doi: 10.1007/s11709-016-0352-z
关键词: wing design aerodynamic loads morphing airfoil auxetic structures negative Poisson’s ratio
Structural design of morphing trailing edge actuated by SMA
Qi WANG, Zhiwei XU, Qian ZHU
《机械工程前沿(英文)》 2013年 第8卷 第3期 页码 268-275 doi: 10.1007/s11465-013-0261-y
In this paper, the morphing trailing edge is designed to achieve the up and down deflection under the aerodynamic load. After a detailed and accurate computational analysis to determine the SMA specifications and layout programs, a solid model is created in CATIA and the structures of the morphing wing trailing edge are produced by CNC machining. A set of DSP measurement and control system is designed to accomplish the controlling experiment of the morphing wing trailing edge. At last, via the force analysis, the trailing edge is fabricated with four sections of aluminum alloy, and the arrangement scheme of SMA wires is determined. Experiment of precise control integral has been performed to survey the control effect. The experiment consists of deflection angle tests of the third joint and the integral structure. Primarily, the ultimate deflection angle is tested in these two experiments. Therefore, the controlling experiment of different angles could be performed within this range. The results show that the deflection error is less than 4% and response time is less than 6.7 s, the precise controlling of the morphing trailing edge is preliminary realized.
关键词: morphing wing trailing edge shape memory alloy digital signal processor PID algorithm
Deformation analysis of shape memory polymer for morphing wing skin under airflow
Weilong YIN, Jingcang LIU, Jinsong LENG,
《机械工程前沿(英文)》 2009年 第4卷 第4期 页码 447-449 doi: 10.1007/s11465-009-0062-5
关键词: aircraft morphing skin shape memory polymer (SMP) deformation pre-strain
Kinematical synthesis of an inversion of the double linked fourbar for morphing wing applications
J. AGUIRREBEITIA, R. AVILéS, I. FERNáNDEZ, M. ABASOLO
《机械工程前沿(英文)》 2013年 第8卷 第1期 页码 17-32 doi: 10.1007/s11465-013-0364-5
This paper presents the kinematical features of an inversion of the double linked fourbar for morphing wing purposes. The structure of the mechanism is obtained using structural synthesis concepts, from an initial conceptual schematic. Then, kinematic characteristics as instant center of rotation, lock positions, dead point positions and uncertainty positions are derived for this mechanism in order to face the last step, the dimensional synthesis; in this sense, two kinds of dimensional synthesis are arranged to guide the wing along two positions, and to fulfill with the second one some aerodynamic and minimum actuation energy related issues.
关键词: morphing wing structural synthesis dimensional synthesis geometrical kinematics
Deformation characteristics of corrugated composites for morphing wings
Ruijun GE, Bangfeng WANG, Changwei MOU, Yong ZHOU,
《机械工程前沿(英文)》 2010年 第5卷 第1期 页码 73-78 doi: 10.1007/s11465-009-0063-4
关键词: corrugated composites deformation characteristic numerical analysis experiment
Module-based method for design and analysis of reconfigurable parallel robots
Fengfeng XI, Yuwen LI, Hongbo WANG
《机械工程前沿(英文)》 2011年 第6卷 第2期 页码 151-159 doi: 10.1007/s11465-011-0121-6
This paper presents a method for the design and analysis of reconfigurable parallel robots. The inherent modularity in a parallel robot lends itself as a natural candidate for reconfiguration. By taking the branches as building blocks, many modular parallel robots can be constructed, from which a reconfigurable parallel robot can be realized. Among three types of reconfigurations, namely, geometry morphing, topology morphing, and group morphing, the method presented here is for the last two reconfigurations, thereby advancing the current research that is mainly limited to geometry morphing. It is shown that the module-based method not only provides a systematic way of designing a reconfigurable parallel robot, but also offers a unified modeling for robot analysis. Two examples are provided, one showing the topology morphing and the other showing the group morphing.
关键词: reconfigurable parallel robot topology morphing group morphing
高层建筑抗风智能幕墙 Article
丁菲, Ahsan Kareem
《工程(英文)》 2020年 第6卷 第12期 页码 1443-1453 doi: 10.1016/j.eng.2020.07.020
世界各地城市高层建筑的蓬勃发展使人们对其抗风性能提出了新要求。这涉及选择建筑外形使其风荷载最小化和有效传递荷载的结构拓扑形式。现行方法通常是在设计中寻找最优外形,但是会将其限定在静态或固定的建筑形式下。以台北101和哈利法塔的外形设计为例,气动外形修正通过修改建筑物的外观设计在减小风荷载和风致建筑物响应方面有很好的应用前景。在这些建筑物设计中,引入了横截面的倒角调整和锥度设计。除此之外,另一种引人注目的方案是设计一个能适应城市高楼林立复杂风环境变化的建筑,即设计动态立面。建筑形状的自主动态变形超越了传统静态形状优化设计,通过将传感、计算、传动装置和工程信息学融合在一起的信息物理系统而实现,并在本研究中进行了论证。新提出的方法将使建筑物能够智能地改变其轮廓,最大限度减弱动态风荷载激励,并有望通过利用计算设计的迅速发展,推动高层建筑设计从传统的静态立面转变为动态立面。
标题 作者 时间 类型 操作
Design concepts of an aircraft wing: composite and morphing airfoil with auxetic structures
P R BUDARAPU,Sudhir Sastry Y B,R NATARAJAN
期刊论文
Deformation analysis of shape memory polymer for morphing wing skin under airflow
Weilong YIN, Jingcang LIU, Jinsong LENG,
期刊论文
Kinematical synthesis of an inversion of the double linked fourbar for morphing wing applications
J. AGUIRREBEITIA, R. AVILéS, I. FERNáNDEZ, M. ABASOLO
期刊论文
Deformation characteristics of corrugated composites for morphing wings
Ruijun GE, Bangfeng WANG, Changwei MOU, Yong ZHOU,
期刊论文
Module-based method for design and analysis of reconfigurable parallel robots
Fengfeng XI, Yuwen LI, Hongbo WANG
期刊论文