检索范围:
排序: 展示方式:
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
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
Robust isogeometric topology optimization for piezoelectric actuators with uniform manufacturability
《机械工程前沿(英文)》 2022年 第17卷 第2期 doi: 10.1007/s11465-022-0683-5
关键词: piezoelectric actuator isogeometric topology optimization uniform manufacturability robust formulation density distribution function
《机械工程前沿(英文)》 2022年 第17卷 第4期 doi: 10.1007/s11465-022-0710-6
关键词: topology optimization isogeometric analysis finite element analysis tensor product structure sensitivity analysis
Solving topology optimization problems by the Guide-Weight method
Xinjun LIU, Zhidong LI, Liping WANG, Jinsong WANG
《机械工程前沿(英文)》 2011年 第6卷 第1期 页码 136-150 doi: 10.1007/s11465-010-0126-6
Finding a good solution method for topology optimization problems is always paid attention to by the research field because they are subject to the large number of the design variables and to the complexity that occurs because the objective and constraint functions are usually implicit with respect to design variables. Guide-Weight method, proposed first by Chen in 1980s, was effectively and successfully used in antenna structures’ optimization. This paper makes some improvement to it so that it possesses the characteristics of both the optimality criteria methods and the mathematical programming methods. When the Guide-Weight method is applied into topology optimization, it works very well with unified and simple form, wide availability and fast convergence. The algorithm of the Guide-Weight method and the improvement on it are described; two formulations of topology optimization solved by the Guide-Weight method combining with SIMP method are presented; subsequently, three numerical examples are provided, and comparison of the Guide-Weight method with other methods is made.
《机械工程前沿(英文)》 2023年 第18卷 第4期 doi: 10.1007/s11465-023-0768-9
关键词: multiresolution multimaterial topology optimization fail-safe structure B-spline
Yu-Chin CHAN, Kohei SHINTANI, Wei CHEN
《机械工程前沿(英文)》 2019年 第14卷 第2期 页码 141-152 doi: 10.1007/s11465-019-0531-4
关键词: robust topology optimization lattice structures multi-material material uncertainty load uncertainty univariate dimension reduction
《能源前沿(英文)》 2022年 第16卷 第1期 页码 121-129 doi: 10.1007/s11708-021-0780-x
关键词: power distribution network data-driven topology identification distributed energy resource maximal information coefficient
Connected morphable components-based multiscale topology optimization
Jiadong DENG, Claus B. W. PEDERSEN, Wei CHEN
《机械工程前沿(英文)》 2019年 第14卷 第2期 页码 129-140 doi: 10.1007/s11465-019-0532-3
关键词: multiscale topology optimization morphable component material microstructure homogenization
Controlling interstory drift ratio profiles via topology optimization strategies
《结构与土木工程前沿(英文)》 2023年 第17卷 第2期 页码 165-178 doi: 10.1007/s11709-022-0892-3
关键词: interstory drift ratio aggregation function bound formulation min–max problem topology optimization
标题 作者 时间 类型 操作
Module-based method for design and analysis of reconfigurable parallel robots
Fengfeng XI, Yuwen LI, Hongbo WANG
期刊论文
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
Robust isogeometric topology optimization for piezoelectric actuators with uniform manufacturability
期刊论文
Massively efficient filter for topology optimization based on the splitting of tensor product structure
期刊论文
Solving topology optimization problems by the Guide-Weight method
Xinjun LIU, Zhidong LI, Liping WANG, Jinsong WANG
期刊论文
Multiresolution and multimaterial topology optimization of fail-safe structures under B-spline spaces
期刊论文
Robust topology optimization of multi-material lattice structures under material and load uncertainties
Yu-Chin CHAN, Kohei SHINTANI, Wei CHEN
期刊论文
Data-driven distribution network topology identification considering correlated generation power of distributed
期刊论文
Connected morphable components-based multiscale topology optimization
Jiadong DENG, Claus B. W. PEDERSEN, Wei CHEN
期刊论文