Search | Engineering

Subscribe Submit

Home Journals Focus Achievement Fronts About Us 中文版

Resource Type

Journal Article 78

Year

2023 9

2022 7

2021 2

2020 5

2019 3

2018 8

2017 8

2016 2

2015 4

2013 5

2012 2

2011 3

2010 2

2008 4

2007 4

2006 4

2005 1

2004 2

2001 1

2000 1

open ︾

Keywords

coupling 2

flexible 2

numerical simulation 2

3-RR parallel 1

3D interpreted horizon 1

3D printing 1

Academy 1

Architecture 1

Artificial intelligence 1

Assembly variation analysis 1

Available transfer capability 1

Balanced bandpass filter (BPF) 1

Ballast 1

Bending structure surfaces 1

Bio-composites 1

Boundary control 1

Bridge design 1

Bézier curves 1

CIGS 1

open ︾

Search scope:

排序： Display mode:

On the Order Reduction of Dynamics Models of Flexible Spacecrafts

Miao Bingqi,Qu Guangji,Xia Suiqin,Cheng Daosheng

Strategic Study of CAE 2001, Volume 3, Issue 11, Pages 60-64

Abstract:

The usual mode sets for the dynamics modeling of flexible spacecraft are reviewed.different mode sets and to illustrate how to use the mode reduction criterions for the dynamics modeling of flexible

Keywords： spacecraft flexible bodies dynamics reduction of models

HTML PDF Collect

Thermal analysis of lubricated three-dimensional contact bodies considering interface roughness

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0672-8

Abstract: Surface roughness and thermal action are of remarkable importance in the lubrication performance of mechanical components, especially in extreme conditions. However, available studies mainly focus on the full-film lubrication conditions without considering temperature rise and real 3D surface roughness due to the complexity of surface topography and temperature characteristics. Moreover, studies on the interfacial thermal behaviors of 3D rough surface lubricated contact in an extended range of working conditions remain limited. In this paper, a deterministic mixed thermal elastohydrodynamic lubrication model considering real 3D surface roughness and thermal effects is proposed. In this model, pressure and temperature are coupled with each other, the computation of elastic deformation is accelerated through the discrete convolution and fast Fourier transform method, the temperature field is calculated with the column sweeping technique, and the semi-system method is introduced to improve convergence and numerical stability under severe conditions. The model is validated by comparing its results with available published numerical and experimental results. The thermal behaviors of the contact interface are studied in a wide range of working conditions. The influences of surface roughness and thermal effect on lubrication performance are revealed. The results show that the proposed model can be used as a powerful analysis tool for lubrication performance and temperature prediction in various heavy-load, high-speed lubricated components over a wide range of lubrication conditions.

Keywords： thermal elastohydrodynamic lubrication surface roughness effect thermal effect temperature characteristics severe conditions

HTML PDF Collect

Main bodies’ behaviors in nanotechnology industrialization

Ji Zhihua,Zhang Shidi,Hong Zhenting

Strategic Study of CAE 2010, Volume 12, Issue 3, Pages 73-76

Abstract: In this paper, we think it will go with the improvement and standardization of main bodies' behaviors

Keywords： nanotechnology industrialization main bodies’ behaviors

HTML PDF Collect

Piezoelectric pump with flexible venous valves for active cell transmission

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0712-4

Abstract: In this study, we designed a piezoelectric pump with a flexible venous valve inspired by that of humanscomputational model of the electric-solid-liquid multi-physical field coupling of the piezoelectric pump with a flexible

Keywords： venous valve flexible venous valve cell transmission organ-on-a-chip system piezoelectric device

HTML PDF Collect

Creation and integration mechanism of instrumentation flexible developing system

Xiaoli XU, Qiushuang LIU

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 2, Pages 235-240 doi: 10.1007/s11465-011-0122-5

Abstract: development (R&D) of modern instrumentation products, based on the concept of an instrumentation flexibledeveloping system (IFDS), this paper discusses the creation and open flexible integration mechanism,perfects the integrated supporting environment and integrated system of the flexible interconnection, and constructs the new flexible integrated system.

Keywords： modern instrumentation developing flexible interconnection flexible integration mechanism rapid integration

HTML PDF Collect

Review on flexible perovskite photodetector: processing and applications

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11465-023-0749-z

Abstract: Next-generation optoelectronics should possess lightweight and flexible characteristics, thus conformingFlexible photodetectors as fundamental devices have been receiving increasing attention owing to theirTypical applications of perovskite-based flexible photodetectors such as optical communication, imageChallenges and future research directions of perovskite-based flexible photodetectors are proposed in, but also to serve as the roadmap for further developments of flexible photodetectors and exploring

Keywords： photodetector perovskite flexible processing application

HTML PDF Collect

A review of the scalable nano-manufacturing technology for flexible devices

Wenbin HUANG,Xingtao YU,Yanhua LIU,Wen QIAO,Linsen CHEN

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 1, Pages 99-109 doi: 10.1007/s11465-017-0416-3

Abstract: we summarize the status and the limitations of current nano-patterning techniques for scalable and flexible

Keywords： flexible nano-manufacturing flexible devices nanofabrication scalability

HTML PDF Collect

Analytical dynamic solution of a flexible cable-suspended manipulator

Mahdi BAMDAD

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 4, Pages 350-359 doi: 10.1007/s11465-013-0271-9

Abstract:

Cable-suspended manipulators are used in large scale applications with, heavy in weight and long in span cables. It seems impractical to maintain cable assumptions of smaller robots for large scale manipulators. The interactions among the cables, platforms and actuators can fully evaluate the coupled dynamic analysis. The structural flexibility of the cables becomes more pronounced in large manipulators. In this paper, an analytic solution is provided to solve cable vibration. Also, a closed form solution can be adopted to improve the dynamic response to flexibility. The output is provided by the optimal torque generation subject to the actuator limitations in a mechatronic sense. Finally, the performance of the proposed algorithm is examined through simulations.

Keywords： parallel robot flexible cable suspended robot dynamic

HTML PDF Collect

Possible role of power-to-heat and power-to-gas as flexible loads in German medium voltage networks

Mark KUPRAT, Martin BENDIG, Klaus PFEIFFER

Frontiers in Energy 2017, Volume 11, Issue 2, Pages 135-145 doi: 10.1007/s11708-017-0472-8

Abstract: This curtailment of RES leads to economic losses and could be avoided through flexible loads.

Keywords： power-to-gas power-to-heat flexible loads ancillary services coherent energy systems

HTML PDF Collect

Dynamics Modeling of Spacecraft with Composite Flexible Structures

Qu Guangji,Cheng Daosheng

Strategic Study of CAE 1999, Volume 1, Issue 2, Pages 52-56

Abstract:

It is a conventional method to build dynamic models of flexible spacecraft with hybrid coordinatesRigid main body is attached by flexible module, to which kinds of large flexible appendages are fixedThe flexible multi-modules main body, taking on a lower stiffness, and several kinds of large flexiblesome of its flexible appendages are not fixed to the rigid main body directly.with taking into consideration the composite transition of linking point between flexible bodies.

Keywords： spacecraft composite flexible structure dynamics of flexible structures hybrid coordinate method

HTML PDF Collect

Estimation of flexible pavement structural capacity using machine learning techniques

Nader KARBALLAEEZADEH, Hosein GHASEMZADEH TEHRANI, Danial MOHAMMADZADEH SHADMEHRI, Shahaboddin SHAMSHIRBAND

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 5, Pages 1083-1096 doi: 10.1007/s11709-020-0654-z

Abstract: process regression, M5P model tree, and random forest used for the prediction of structural numbers in flexibleDataset of this paper is related to 759 flexible pavement sections at Semnan and Khuzestan provinces

Keywords： transportation infrastructure flexible pavement structural number prediction Gaussian process regression

HTML PDF Collect

Design and applications of morphing aircraft and their structures

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 3, doi: 10.1007/s11465-023-0750-6

Abstract: structures, lattice technology for reducing structural weight, and multi-mode morphing combined with flexibleThird, the paper discusses multiple challenges, including flexible structures, flexible skins, and control

Keywords： morphing aircraft additive manufacturing lattice structure smart material flexible structure flexible

HTML PDF Collect

A pseudocapacitive molecule-induced strategy to construct flexible high-performance asymmetric supercapacitors

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 9, Pages 1208-1220 doi: 10.1007/s11705-023-2304-1

Abstract: Flexible and sustainable sodium lignosulfonate-based electrodes are successfully developed, showing perfectoxide and polyaniline is undoubtedly beneficial to advance the process for the construction of green flexible

Keywords： molecular synergy pseudocapacitive lignosulfonate flexible electronic devices asymmetric supercapacitor

HTML PDF Collect

Implementation of a flexible Major Vacation Toll-free Program for small passenger vehicles in China

Meng XU, Ziyou GAO

Frontiers of Engineering Management 2017, Volume 4, Issue 4, Pages 498-499 doi: 10.15302/J-FEM-2017111

HTML PDF Collect

Synthesis and properties of polybenzazoles containing flexible methylene in backbone

XU Xiaohui, LIU Xiaoyun, ZHOU Chengjun, ZHUANG Qixin, HAN Zhewen

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 4, Pages 412-416 doi: 10.1007/s11705-008-0073-5

Abstract: A novel series of polybenzazoles with rigid-rod benzoxazole cycle and soft methylene segment was designed and synthesized via solution condensation polymerizations from 4,6-diamino-1,3-benzenediol diphosphate, terephthalic acid and aliphatic dicarboxylic acid. The structures of polybenzazoles were characterized by means of FT-IR, H NMR and Wide-angle X-ray diffraction (WAXRD). All the polymers show excellent thermal stability and the s was above 471°C. The intrinsic viscosities [] of the polymers ranged from 0.8 to 0.9. The UV-Vis absorption peaks of the polymers in MSA were blue-shifted from 429 nm for PBO to 291 nm for PBOC7, and the Stokes shifts in PL spectra enlarged.

Keywords： condensation Wide-angle absorption excellent diffraction