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Shape optimization of aluminium alloy spherical reticulated shells considering nonlinearities

Wei LIU; Lishu XU; Shaojun ZHU; Lijuan LI; Feng LIU; Zhe XIONG

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 12,   Pages 1565-1580 doi: 10.1007/s11709-022-0867-4

Abstract: This study proposes a shape optimization method for K6 aluminum alloy spherical reticulated shells withThe optimization procedure adopts a genetic algorithm in which the elastoplastic non-linear bucklingpath toward achieving a larger elastoplastic non-linear buckling load without changing the macroscopic shapeIn addition, the variation in structural performance during optimization is illustrated.Through parametric analysis, practical design tables containing the parameters of the optimized shape

Keywords： shape optimization     aluminum alloy     spherical reticulated shell     non-linear buckling     material nonlinearity    

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Topology optimization and seismic collapse assessment of shape memory alloy (SMA)-braced frames: Effectiveness

Aydin HASSANZADEH; Saber MORADI

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 3,   Pages 281-301 doi: 10.1007/s11709-022-0807-3

Abstract: This paper presents a seismic topology optimization study of steel braced frames with shape memory alloyThe topology optimization is performed on 5- and 10-story SMA-BFs considering the placement, length,Geometric, strength, and performance-based design constraints are considered in the optimization.

Keywords： topology optimization     shape memory alloy     Fe-based SMA     steel braced frames     performance-based seismic    

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Shape design of arch dams under load uncertainties with robust optimization

Fengjie TAN, Tom LAHMER

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 4,   Pages 852-862 doi: 10.1007/s11709-019-0522-x

Abstract: This type of optimization takes into account uncertainties in the loads and in the material propertiesdesign optimization (RBDO), are in general computationally expensive and rely on estimates of the systemThis leads to a bi-level optimization program where the volume of the dam is optimized under the worstThe optimization of an arch-type dam is realized here by a robust optimization method under load uncertaintyComparing with any traditional deterministic optimization method, which only concerns the minimum objective

Keywords： arch dam     shape optimization     robust optimization     load uncertainty     approximation model    

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An ANN-exhaustive-listing method for optimization of multiple building shapes and envelope properties

Yaolin LIN, Wei YANG

Frontiers in Energy 2021, Volume 15, Issue 2,   Pages 550-563 doi: 10.1007/s11708-019-0607-1

Abstract: comfort of building occupants has not been considered in maximizing thermal performance in building shapeoptimization.It is found that the building shape needs to be treated separately to achieve sufficient accuracy of

Keywords： ANN (artificial neural network)     exhaustive-listing     building shape     optimization     thermal load     thermal comfort    

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An isogeometric numerical study of partially and fully implicit schemes for transient adjoint shape sensitivity

Zhen-Pei WANG, Zhifeng XIE, Leong Hien POH

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 2,   Pages 279-293 doi: 10.1007/s11465-019-0575-5

Abstract: In structural design optimization involving transient responses, time integration scheme plays a crucialIn this work, the influence of time integration scheme is studied numerically for the adjoint shape sensitivity

Keywords： isogeometric shape optimization     design-dependent boundary condition     transient heat conduction     implicit    

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Shape and topology optimization for tailoring the ratio between two flexural eigenfrequencies of atomic

Qi XIA,Tao ZHOU,Michael Yu WANG,Tielin SHI

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 1,   Pages 50-57 doi: 10.1007/s11465-014-0286-x

Abstract: In order to deal with this issue, a shape and topology optimization problem is formulated, where theThe optimization problem is solved via the level set based method.

Keywords： atomic force microscopy     cantilever probe     eigenfrequency     optimization    

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An extended thermo-mechanically coupled algorithm for simulation of superelasticity and shape memoryeffect in shape memory alloys

S. HASHEMI,H. AHMADIAN,S. MOHAMMADI

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 4,   Pages 466-477 doi: 10.1007/s11709-015-0300-3

Abstract: Thermo-mechanical coupling in shape memory alloys is a very complicated phenomenon.lead to temperature-dependent variation of its mechanical behavior in the forms of superelasticity and shapealgorithm is proposed based on the original model of Lagoudas to efficiently model both superelasticity and shape

Keywords： shape memory alloy     thermo-mechanical coupling     superplasticity     shape memory effect    

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A novel shape memory alloy actuated soft gripper imitated hand behavior

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0700-8

Abstract: The limited length shrinkage of shape memory alloy (SMA) wire seriously limits the motion range of SMA-basedwithout silicone gel was designed based on pre bent SMA wire, and the finger was back to its original shape

Keywords： shape memory alloy (SMA)     pre bent     wire     gripper     grasping mode     lightweight    

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Size and shape effects of MnFeO nanoparticles as catalysts for reductive degradation of dye pollutants

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 5,   Pages 108-171 doi: 10.1007/s11783-021-1396-4

Abstract: It was found that the catalytic activities were dependent on the size and shape of the MnFe2shape effects of MnFe2O4 nanoparticles demonstrated in this work not

Keywords： Dye degradation     MnFe2O4 nanoparticles     Size and shape-control    

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A Realization Method for Transforming a Topology Optimization Design into Additive Manufacturing Structures Article

Shutian Liu, Quhao Li, Junhuan Liu, Wenjiong Chen, Yongcun Zhang

Engineering 2018, Volume 4, Issue 2,   Pages 277-285 doi: 10.1016/j.eng.2017.09.002

Abstract:

Topology optimization is a powerful design approach that is used to determine the optimal topologyhinder the application of topology optimization.density framework, into parametric computer-aided design (CAD) models that are ready for subsequent shapeoptimization and manufacturing.First, we extract the skeleton of the topology optimization result in order to ensure shape preservation

Keywords： Topology optimization     Additive manufacturing     Characteristics preservation     Adaptive fitting     Shape optimization    

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Key Technologies in the Design and Construction of 300 m Ultra-High Arch Dams

Renkun Wang

Engineering 2016, Volume 2, Issue 3,   Pages 350-359 doi: 10.1016/J.ENG.2016.03.012

Abstract: the strength and stability of foundation rock, excavation of the dam base and surface treatment, dam shapeoptimization, safety design guidelines, seismic analysis and design, treatment of a complex foundation

Keywords： Ultra-high arch dam     Shape optimization     Arch dam overall safety     Seismic safety     Concrete temperature control    

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Temperature effects of shape memory alloys (SMAs) in damage control design of steel portal frames

Xiaoqun LUO, Hanbin GE, Tsutomu USAMI

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 4,   Pages 348-357 doi: 10.1007/s11709-012-0176-4

Abstract: present study is to analytically investigate temperature effects of an axial-type seismic damper made of shape

Keywords： damage control design     shape memory alloy     temperature effect    

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A fully solid-state cold thermal energy storage device for car seats using shape-memory alloys

Frontiers in Energy 2023, Volume 17, Issue 4,   Pages 504-515 doi: 10.1007/s11708-022-0855-3

Abstract: As a solid-solid phase change material, shape-memory alloys (SMAs) have the inherent advantages of leakageConsidering these characteristics, the design of the shape-memory alloy based the cold thermal energystorage system for precooling car seat application is introduced in this paper based on the proposed shape-memoryThe influence of initial temperature, elastocaloric materials, and the shape-memory alloy geometry schemeenergy storage materials, hopefully the proposed concept can promote the development of more promising shape-memory

Keywords： shape-memory alloy (SMA)     elastocaloric effect (eCE)     cooled seat     cold thermal energy storage    

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Definition and Verification of Shape Meter Method

Zhang Jinzhi,Duan Chunhua,Zhu Jianqin

Strategic Study of CAE 2001, Volume 3, Issue 12,   Pages 47-51

Abstract:

Shape survey and control mathematics model,analytical theory for shape stiffness and the shape andgauge coordination control law are called shape meter methcd.paper, two experimental methods had been adopted to verify the correctness and practicality of the shapemeter method ： one is to roll aluminum plate and calculate the shape stiffness of mill and rolled piece, then survey aluminum plate crown to verify shape stiffness e-quation;the other is to calculate survey

Keywords： shape meter methcxl     shape stiffness equation     survey and control mathematics model     follow-up calculation    

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Calculation method on shape finding of self-anchored suspension bridge with spatial cables

Yan HAN, Zhengqing CHEN, Shidong LUO, Shankui YANG

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 2,   Pages 165-172 doi: 10.1007/s11709-009-0021-6

Abstract: Based on the spatial model, a reliable and accurate calculation method on the shape finding of self-anchoredOn the principle that the shape of the main cables between hangers is catenary, the iteration methodThe reasonable position of the saddle was determined according to the shape and the theoretical jointThe results show that the shape-finding calculation method is effective and reliable.

Keywords： bridge engineering     self-anchored suspension bridges     special cables     shape-finding     calculation method    

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Title Author Date Type Operation

Shape optimization of aluminium alloy spherical reticulated shells considering nonlinearities

Wei LIU; Lishu XU; Shaojun ZHU; Lijuan LI; Feng LIU; Zhe XIONG

Journal Article

Topology optimization and seismic collapse assessment of shape memory alloy (SMA)-braced frames: Effectiveness

Aydin HASSANZADEH; Saber MORADI

Journal Article

Shape design of arch dams under load uncertainties with robust optimization

Fengjie TAN, Tom LAHMER

Journal Article

An ANN-exhaustive-listing method for optimization of multiple building shapes and envelope properties

Yaolin LIN, Wei YANG

Journal Article

An isogeometric numerical study of partially and fully implicit schemes for transient adjoint shape sensitivity

Zhen-Pei WANG, Zhifeng XIE, Leong Hien POH

Journal Article

Shape and topology optimization for tailoring the ratio between two flexural eigenfrequencies of atomic

Qi XIA,Tao ZHOU,Michael Yu WANG,Tielin SHI

Journal Article

An extended thermo-mechanically coupled algorithm for simulation of superelasticity and shape memoryeffect in shape memory alloys

S. HASHEMI,H. AHMADIAN,S. MOHAMMADI

Journal Article

A novel shape memory alloy actuated soft gripper imitated hand behavior

Journal Article

Size and shape effects of MnFeO nanoparticles as catalysts for reductive degradation of dye pollutants

Journal Article

A Realization Method for Transforming a Topology Optimization Design into Additive Manufacturing Structures

Shutian Liu, Quhao Li, Junhuan Liu, Wenjiong Chen, Yongcun Zhang

Journal Article

Key Technologies in the Design and Construction of 300 m Ultra-High Arch Dams

Renkun Wang

Journal Article

Temperature effects of shape memory alloys (SMAs) in damage control design of steel portal frames

Xiaoqun LUO, Hanbin GE, Tsutomu USAMI

Journal Article

A fully solid-state cold thermal energy storage device for car seats using shape-memory alloys

Journal Article

Definition and Verification of Shape Meter Method

Zhang Jinzhi,Duan Chunhua,Zhu Jianqin

Journal Article

Calculation method on shape finding of self-anchored suspension bridge with spatial cables

Yan HAN, Zhengqing CHEN, Shidong LUO, Shankui YANG

Journal Article