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Fluid-Aerodynamics Performance Investigation of Dynamic Air Cushion Wing-in-ground Effect Craft

Yun Liang,Wu Chengjie,Xie Younong

Strategic Study of CAE 2000, Volume 2, Issue 4,   Pages 48-52

Abstract:

The features and difficulties of the craft design as well as the experimental investigation of DACWIG(Dynamic Air Cushion Wing-in-ground Effect Craft) are described in this paper.Both model and full scale craft tests demonstrated that the static hovering characteristics, poweringseakeeping quality and aerodynamics balance as well as transverse and longitudinal stability of the craftwere satisfied, due to taking a series measures in the craft design.

Keywords: dynamic air cushion     wing in ground effect craft     performance    

Design Feature and Evolution of Dynamic Air Cushion Wing-in-ground Effect Craft

Hui Liang,wu Chengjie,xie Younong,Peng Guihua

Strategic Study of CAE 2000, Volume 2, Issue 3,   Pages 67-72

Abstract:

The design features and the evolution of the Amphibious wing in Ground Effect Craft (AWIG) (also socalled Dynamic Air Cushion Wing-in-Ground Effect Craft, DACWIG) in China are described in this paperof WIG, with high speed, fine seaworthiness, marvelous amphibious, and being able to fly in/beyond groundeffect zone and softly land on ground, as well as maneuver in air (just like the Russian novel type

Keywords: dynamic air cushion     amphibious     wing-in-ground effect craft     feature     evolution    

Deformation analysis of shape memory polymer for morphing wing skin under airflow

Weilong YIN, Jingcang LIU, Jinsong LENG,

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 4,   Pages 447-449 doi: 10.1007/s11465-009-0062-5

Abstract: The method for analyzing the out-of-plane deformation of a flexible skin under airflow is developed in this paper. The aerodynamic analysis is performed using the CFD software, and the structural analysis is performed using finite element method. The chief aim of the present study is to investigate the out-of-plane deformation of the shape memory polymer (SMP) skin at different temperatures. Numerical results show that the maximum out-of-plane displacement of the SMP skin increases with increasing temperature. When the SMP skin is heated to 53°C, the maximum out-of-plane displacement is about 7 mm. It decreases by 72%, when the SMP skin is applied with a uniform pre-strain of 0.1.

Keywords: aircraft     morphing     skin     shape memory polymer (SMP)     deformation     pre-strain    

Investigations on color variations of Morpho rhetenor butterfly wing scales

Guanglan LIAO, Haibo ZUO, Xuan JIANG, Xuefeng YANG, Tielin SHI

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 4,   Pages 394-400 doi: 10.1007/s11465-012-0347-y

Abstract:

Experiments and simulations are carried out to investigate the optical properties of butterfly wingThe upper surface of a male butterfly wing presents a single-layer of scales, the microstructures ofThis research benefits our understanding of the color variation mechanisms of the wing scales, and provides

Keywords: Morpho rhetenor     microstructures     color variations     ambient medium    

Kinematical synthesis of an inversion of the double linked fourbar for morphing wing applications

J. AGUIRREBEITIA, R. AVILéS, I. FERNáNDEZ, M. ABASOLO

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 1,   Pages 17-32 doi: 10.1007/s11465-013-0364-5

Abstract: This paper presents the kinematical features of an inversion of the double linked fourbar for morphing wingdimensional synthesis; in this sense, two kinds of dimensional synthesis are arranged to guide the wing

Keywords: morphing wing     structural synthesis     dimensional synthesis     geometrical kinematics    

Design concepts of an aircraft wing: composite and morphing airfoil with auxetic structures

P R BUDARAPU,Sudhir Sastry Y B,R NATARAJAN

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 4,   Pages 394-408 doi: 10.1007/s11709-016-0352-z

Abstract: This paper is categorized into two parts. (1) A frame work to design the aircraft wing structure andframe work in the first part is used to arrive at the sizes of the various components of an aircraft wingThe aerodynamic loads acting on a wing structure are converted to equivalent distributed loads, whichfurther converted point loads to arrive at the shear forces, bending and twisting moments along the wingA three dimensional numerical model of the composite wing structure has been developed and analyzed for

Keywords: wing design     aerodynamic loads     morphing airfoil     auxetic structures     negative Poisson’s ratio    

Mechanical responses of multi-layered ground due to shallow tunneling with arbitrary ground surface load

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 5,   Pages 745-762 doi: 10.1007/s11709-023-0935-4

Abstract: An analytical model based on complex variable theory is proposed to investigate ground responses dueto shallow tunneling in multi-layered ground with an arbitrary ground surface load.The ground layers are assumed to be linear-elastic with full-stick contact between them.in multi-layered ground; thus, it can be used with assurance to estimate the ground movement and surfacecomposite ground.

Keywords: analytical model     mechanical response     multi-layered ground     shallow tunneling     ground surface load    

Effect of environment change on the strength of cement/lime treated clays

Takenori HINO, Rui JIA, Seiji SUEYOSHI, Tri HARIANTO

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 2,   Pages 153-165 doi: 10.1007/s11709-012-0153-y

Abstract: The deposition environment of the investigation location is reconstructed and compared to the present groundThe mechanism of the ground environment change and its effect on the strength of cement/lime treatedcement and lime in different curing environments was investigated in the laboratory for studying the effectWhen examining the long-term strength for preventing strength degradation, the effect of environmentalThe importance of measuring pH and oxidation-reduction potential (ORP) of the ground for cement/lime

Keywords: soil solidification     ground environment     strength deterioration     pH     oxidation-reduction potential (ORP)    

R&D of the ground-coupled heat pump technology in China

Nairen DIAO, Ping CUI, Junhong LIU, Zhaohong FANG,

Frontiers in Energy 2010, Volume 4, Issue 1,   Pages 47-54 doi: 10.1007/s11708-009-0080-3

Abstract: The ground-coupled heat pump (GCHP) systems have been identified as one of the best sustainable energyNew models are presented for efficient thermal analysis of ground heat exchangers, of which one- andtwo-dimensional solid cylindrical source models and their analytical solutions are devised to deal with pile ground

Keywords: ground source heat pump     ground heat exchanger     HVAC     China    

INTERACTIONS BETWEEN ABOVE AND BELOW GROUND PLANT STRUCTURES: MECHANISMS AND ECOSYSTEM SERVICES

Frontiers of Agricultural Science and Engineering 2022, Volume 9, Issue 2,   Pages 197-213 doi: 10.15302/J-FASE-2021433

Abstract:

Interactions between above and below ground parts of plants can be considered under the (overlappingSolar energy powers photosynthesis and transpiration by above ground structures, and drives most wateruptake through roots and supplies energy as organic matter to below ground parts, including diazotrophicNO3 assimilation of above ground parts requires organic N transportInteraction of above and below ground plant parts is an important component of the ecosystem service

Keywords: aerenchyma / carbon accumulation / hormones / phloem / xylem    

Shanghai center project excavation induced ground surface movements and deformations

Guolin XU, Jiwen ZHANG, Huang LIU, Changqin REN

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 1,   Pages 26-43 doi: 10.1007/s11709-017-0439-1

Abstract: The following main items related to ground surface movements and deformations were collected: (1) wallsand circumferential soils lateral movements; (2) peripheral soil deflection in layers and ground settlements

Keywords: deep excavation     foundation pit     soft clay     top-down method     field observation     ground surface movements     ground    

Seismic ground motion analysis of Shanghai Pudong Airport site considering the effects of spatial correlation

JIANG Tong, CHEN Laiyun, XING Hailing, L? Xilin

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 4,   Pages 430-435 doi: 10.1007/s11709-007-0058-3

Abstract: The spatial correlation of seismic ground motion, as well as the amplification of soft alluvium and theeffect of irregular topography, should be considered.The surface ground motion was calculated under incidence of the spatially correlative seismic motionIn order to compare the effect of 2D irregular topography, the seismic response analysis of 1D modelFor indicating the effect of the spatial correlation of input motions, the horizontal uniform inputs,

Keywords: surface ground     horizontal uniform     Finally     seismic ground     correlative seismic    

Modeling process-structure-property relationships for additive manufacturing

WAGNER, Wing Kam LIU

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 4,   Pages 482-492 doi: 10.1007/s11465-018-0505-y

Abstract:

This paper presents our latest work on comprehensive modeling of process-structure-property relationships for additive manufacturing (AM) materials, including using data-mining techniques to close the cycle of design-predict-optimize. To illustrate the process-structure relationship, the multi-scale multi-physics process modeling starts from the micro-scale to establish a mechanistic heat source model, to the meso-scale models of individual powder particle evolution, and finally to the macro-scale model to simulate the fabrication process of a complex product. To link structure and properties, a high-efficiency mechanistic model, self-consistent clustering analyses, is developed to capture a variety of material response. The model incorporates factors such as voids, phase composition, inclusions, and grain structures, which are the differentiating features of AM metals. Furthermore, we propose data-mining as an effective solution for novel rapid design and optimization, which is motivated by the numerous influencing factors in the AM process. We believe this paper will provide a roadmap to advance AM fundamental understanding and guide the monitoring and advanced diagnostics of AM processing.

Keywords: additive manufacturing     thermal fluid flow     data mining     material modeling    

Evaluation of the performance of a centralized ground-water heat pump system in cold climate region

Shilei LU,Zhe CAI,Li ZHANG,Yiran LI

Frontiers in Energy 2014, Volume 8, Issue 3,   Pages 394-402 doi: 10.1007/s11708-014-0310-1

Abstract: The aim of this study is to evaluate the performance of a centralized open-loop ground-water heat pump

Keywords: ground-water heat pump (GWHP)     actual coefficient of performance     heat transfixion    

Optimisation for interconnected energy hub system with combined ground source heat pump and borehole

Da HUO, Wei WEI, Simon Le BLOND

Frontiers in Energy 2018, Volume 12, Issue 4,   Pages 529-539 doi: 10.1007/s11708-018-0580-0

Abstract: Ground source heat pumps (GSHP) give zero-carbon emission heating at a residential level.However, as the heat is discharged, the temperature of the ground drops, leading to a poorer efficiency

Keywords: borehole thermal storage     energy hub     ground source heat pumps (GSHP)     particle swarm optimisation    

Title Author Date Type Operation

Fluid-Aerodynamics Performance Investigation of Dynamic Air Cushion Wing-in-ground Effect Craft

Yun Liang,Wu Chengjie,Xie Younong

Journal Article

Design Feature and Evolution of Dynamic Air Cushion Wing-in-ground Effect Craft

Hui Liang,wu Chengjie,xie Younong,Peng Guihua

Journal Article

Deformation analysis of shape memory polymer for morphing wing skin under airflow

Weilong YIN, Jingcang LIU, Jinsong LENG,

Journal Article

Investigations on color variations of Morpho rhetenor butterfly wing scales

Guanglan LIAO, Haibo ZUO, Xuan JIANG, Xuefeng YANG, Tielin SHI

Journal Article

Kinematical synthesis of an inversion of the double linked fourbar for morphing wing applications

J. AGUIRREBEITIA, R. AVILéS, I. FERNáNDEZ, M. ABASOLO

Journal Article

Design concepts of an aircraft wing: composite and morphing airfoil with auxetic structures

P R BUDARAPU,Sudhir Sastry Y B,R NATARAJAN

Journal Article

Mechanical responses of multi-layered ground due to shallow tunneling with arbitrary ground surface load

Journal Article

Effect of environment change on the strength of cement/lime treated clays

Takenori HINO, Rui JIA, Seiji SUEYOSHI, Tri HARIANTO

Journal Article

R&D of the ground-coupled heat pump technology in China

Nairen DIAO, Ping CUI, Junhong LIU, Zhaohong FANG,

Journal Article

INTERACTIONS BETWEEN ABOVE AND BELOW GROUND PLANT STRUCTURES: MECHANISMS AND ECOSYSTEM SERVICES

Journal Article

Shanghai center project excavation induced ground surface movements and deformations

Guolin XU, Jiwen ZHANG, Huang LIU, Changqin REN

Journal Article

Seismic ground motion analysis of Shanghai Pudong Airport site considering the effects of spatial correlation

JIANG Tong, CHEN Laiyun, XING Hailing, L? Xilin

Journal Article

Modeling process-structure-property relationships for additive manufacturing

WAGNER, Wing Kam LIU

Journal Article

Evaluation of the performance of a centralized ground-water heat pump system in cold climate region

Shilei LU,Zhe CAI,Li ZHANG,Yiran LI

Journal Article

Optimisation for interconnected energy hub system with combined ground source heat pump and borehole

Da HUO, Wei WEI, Simon Le BLOND

Journal Article