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Design and experiment of a novel pneumatic soft arm based on a deployable origami exoskeleton

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 4, doi: 10.1007/s11465-023-0770-2

Abstract: In this research, a novel soft arm was developed by coupling a rigid origami exoskeleton with soft airbagsThe joint module of the soft arm was composed of a deployable origami exoskeleton and three soft airbagsA kinematic-based trajectory planning of the soft arm was performed to evaluate its error in repetitiveThis work will provide new design ideas and methods for flexible manipulation applications of soft arms

Keywords： pneumatic soft arm soft airbag deployable origami exoskeleton bistable characteristics cargo-loading

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Recent development on innovation design of reconfigurable mechanisms in China

Wuxiang ZHANG, Shengnan LU, Xilun DING

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 1, Pages 15-20 doi: 10.1007/s11465-018-0517-7

Abstract: Metamorphic and origami-derived mechanisms are two kinds of typical reconfigurable mechanisms, whichImproving the independent design level, innovation, and international competitive powers of reconfigurableThis paper presents an overview of recent developments in innovation design of reconfigurable mechanismsin China, including metamorphic and origami mechanisms and their typical applications.

Keywords： innovation design reconfigurable mechanisms metamorphic mechanisms origami-derived mechanisms development

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Assembly design system based on engineering connection

Wensheng YIN

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 4, Pages 423-432 doi: 10.1007/s11465-016-0382-1

Abstract:

An assembly design system is an important part of computer-aided design systems, which are importanttools for realizing product concept design.engineering layer; consequently, the upstream design idea cannot be fully used in the downstream designAn assembly design model based on the relationship of engineering connection is presented.Finally, VC++6.0 is used to develop a prototype system called Connect-based Assembly Planning (CAP).

Keywords： product design assembly design engineering connection assembly sequence planning

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Urban design based on public safety-Discussion on safety-based urban design

Kaizhen CAI, Jianguo WANG

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 2, Pages 219-227 doi: 10.1007/s11709-009-0023-4

Abstract: construction of urban surroundings, this paper expounds the necessity of the study on public safety-basedurban design in perspective of modern city.It brings forward the concept of safety-based urban design and attempts to explore the basic connotation

Keywords： urban public safety urban design safety-based urban design

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Reliability-based design for automobiles in China

ZHANG Yimin

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 4, Pages 369-374 doi: 10.1007/s11465-008-0064-8

Abstract: The level of automobile design and manufacturing is an important sign of leadership in science and technologyThe achievements of theories and methods for reliability-based design of automobiles in China are reviewedFor reliability-based design, the theories and practices, optimization, sensitivity, and robustness areThe techniques of reliability-based design for automobiles are developed.

Keywords： reliability-based automobile sensitivity optimization robustness

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Reliability-based robust design optimization of vehicle components, Part I: Theory

Yimin ZHANG

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 2, Pages 138-144 doi: 10.1007/s11465-015-0333-2

Abstract:

The reliability-based design optimization, the reliability sensitivity analysis and robust designmethod are employed to present a practical and effective approach for reliability-based robust designA procedure for reliability-based robust design optimization of vehicle components is proposed.Application of the method is illustrated by reliability-based robust design optimization of axle anddesign optimization of vehicle components.

Keywords： vehicle components reliability-based design optimization reliability-based sensitivity analysis multi-objectiveoptimization robust design

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The Tessellation Rule and Properties Programming of Origami Metasheets Built with a Mixture of Rigid Article

Jiayao Ma, Shixi Zang, Yan Chen, Zhong You

Engineering 2022, Volume 17, Issue 10, Pages 82-92 doi: 10.1016/j.eng.2022.02.015

Abstract:

Metamaterials constructed from origami units of different types and behaviors could potentially offerHowever, the geometric design rules and property programming methods for such metamaterials have yetIn this paper, we propose a new kind of origami metasheet by incorporating a family of different square-twistBased on this, we are able to program the mechanical properties of the metasheets over a wide range bymountain–valley assignments, thereby allowing the properties of the metasheet to be re-programmed based

Keywords： Origami metamaterials Metasheets Square-twist pattern Non-periodic tessellation Programmability

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Reliability-based robust design optimization of vehicle components, Part II: Case studies

Yimin ZHANG

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 2, Pages 145-153 doi: 10.1007/s11465-015-0334-1

Abstract:

The reliability-based optimization, the reliability-based sensitivity analysis and robust design methodare employed to propose an effective approach for reliability-based robust design optimization of vehicleApplications of the method are further discussed for reliability-based robust optimization of vehicleResults have shown the proposed method is an efficient method for reliability-based robust design optimization

Keywords： vehicle axles and springs reliability-based design optimization reliability-based sensitivity analysis multi-objective optimization robust design

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Concepts and implementation of strain-based criteria in design codes for steel structures

Reidar BJORHOVDE

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 3, Pages 210-216 doi: 10.1007/s11709-012-0165-7

Abstract: The paper addresses the properties of a range of structural steels, how these are incorporated into design

Keywords： steel stress-strain characteristics tension test strain design actual behavior improved design codes

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Performance-based and performance-driven architectural design and optimization

Xing SHI

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 4, Pages 512-518 doi: 10.1007/s11709-010-0090-6

Abstract: It is argued that performance-based and performance-driven architectural designs differ in that the latterThe paper starts with a brief introduction of performance issues in architectural design, followed bya review of the evolution of performance-based architectural design.The concept of performance-driven architectural design is presented, and some design projects and researchperformance-based/driven architectural design software is proposed.

Keywords： performance optimization architectural design simulation sustainability

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Optimal design of a linkage–cam mechanism-based redundantly actuated parallel manipulator

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 3, Pages 451-467 doi: 10.1007/s11465-021-0634-6

Abstract: degrees of freedom (DOFs) is challenged for its dimensionally homogeneous Jacobian modeling and optimal designoptimization algorithm derived from this dimensionally homogeneous Jacobian is proposed for the optimal designThe linkage lengths and the position of the universal joints of the RAPM are optimized based on the dimensionally

Keywords： redundant actuation parallel manipulator linkage–cam mechanism Jacobian optimal design

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Optimal design of steel portal frames based on genetic algorithms

CHEN Yue, HU Kai

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 4, Pages 318-322 doi: 10.1007/s11709-008-0055-1

Abstract: As for the optimal design of steel portal frames, due to both the complexity of cross selections of beamsand columns and the discreteness of design variables, it is difficult to obtain satisfactory resultsBased on a set of constraints of the Technical Specification for Light-weighted Steel Portal Frames ofFinally, some examples illustrate the effectiveness and efficiency of the genetic-algorithm-based optimal

Keywords： satisfactory genetic-algorithm-based Technical Specification algorithm efficiency

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Life cycle and performance based seismic design of major bridges in China

FAN Lichu

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 3, Pages 261-266 doi: 10.1007/s11709-007-0033-z

Abstract: The idea of life cycle and performance based seismic design of major bridges is introduced.Based on the key components and non-key components of a bridge and the consideration of the inspectabilityreplaceability, reparability, controllability and retrofitability of the bridge components, different seismic designrisk assessment, are also proposed to be the important issues to study in order to guide the seismic design

Keywords： controllability progressive reparability different important

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Displacement-based seismic design of high-strength concrete frame columns

ZHANG Guojun, LIU Jianxin, LU Xilin

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 1, Pages 93-101 doi: 10.1007/s11709-008-0006-x

Abstract: Based on the testing results of 108 high-strength concrete columns under constant axial loading and horizontalhigh-strength concrete columns are presented by comparatively analysis, and compared with ones in the design

Keywords： horizontal cyclic longitudinal reinforcement design loading constant

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Development of mix design method based on statistical analysis of different factors for geopolymer concrete

Paramveer SINGH; Kanish KAPOOR

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 10, Pages 1315-1335 doi: 10.1007/s11709-022-0853-x

Abstract: The present study proposes the mix design method of Fly Ash (FA) based geopolymer concrete using Response(sodium silicate/sodium hydroxide), NH molarity, and water/solids ratio were considered for the mix designThe 2D contour plots were used to setup the mix design method to achieve the target compressive strengthThe proposed mix design method of geopolymer concrete is divided into three categories based on curingThe observed experimental compressive strength results validate the mix design method by more than 90%

Keywords： geopolymer concrete mix design fly ash response surface methodology compressive strength stress−