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Development of dimensionless P-I diagram for curved SCS sandwich shell subjected to uniformly distributed blast pressure

Yonghui WANG, Ximei ZHAI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 6,   Pages 1432-1445 doi: 10.1007/s11709-019-0566-y

Abstract: The curved SCS sandwich shell was equivalent to a single-degree-of-freedom (SDOF) system and the equationTo construct the dimensionless P-I diagram, the energy balance method was utilized to yield the pressureimpulse asymptotes and the responses in the dynamic response regime were obtained via employing the SDOF methodThen, the finite element method was employed to validate the developed dimensionless P-I diagram.

Keywords： blast loading     curved steel-concrete-steel sandwich shell     Pressure-Impulse diagram     single-degree-of-freedommethod     finite element analysis    

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Error analysis and optimization of a 3-degree of freedom translational Parallel Kinematic Machine

S. SHANKAR GANESH,A. B. KOTESWARA RAO

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 2,   Pages 120-129 doi: 10.1007/s11465-014-0300-3

Abstract:

In this paper, error modeling and analysis of a typical 3-degree of freedom translational Parallel

Keywords： translational Parallel Kinematic Machine     error modeling     global error transformation index    

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On the location of the secondary instantaneous poles in two-degree-of-freedom spherical mechanisms

Soheil ZARKANDI

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 1,   Pages 34-40 doi: 10.1007/s11465-014-0290-1

Abstract: presents a theorem showing analytically that the locus of an unknown secondary instant pole in two-degree-of-freedom

Keywords： spherical mechanisms     instantaneous poles     great circle     angular velocity    

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Stiffness of a 3-degree of freedom translational parallel kinematic machine

S. SHANKAR GANESH,A.B. KOTESWARA RAO

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 3,   Pages 233-241 doi: 10.1007/s11465-014-0312-z

Abstract:

In this paper, a typical 3-degree of freedom (3-DOF) translational parallel kinematic machine

Keywords： 3-DOF translational PKM     inverse kinematics     stiffness modeling     translational stiffness    

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Singularity loci of an orthogonal spherical two-degree-of-freedom parallel mechanism

Jialun YANG, Feng GAO,

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 4,   Pages 379-385 doi: 10.1007/s11465-009-0075-0

Abstract: In this paper, the direct and inverse kinematics of an orthogonal spherical two-degree-of-freedom parallel

Keywords： 2-DOF orthogonal spherical parallel mechanism     singularity loci     self-motions    

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A survey of instantaneous poles for a class of two-degree-of-freedom spherical mechanisms

Soheil ZARKANDI

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 4,   Pages 344-353 doi: 10.1007/s11465-014-0320-z

Abstract:

This paper is a detailed exploration of instantaneous poles for a class of two-degree-of-freedom (

Keywords： spherical mechanisms     instantaneous poles     Aronhold-Kennedy theorem     great circles     pencil of meridian    

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Design and locomotion analysis of two kinds of rolling expandable mobile linkages with a single degreeof freedom

Yanlin HAO, Yaobin TIAN, Jianxu WU, Yezhuo LI, Yan-An YAO

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 3,   Pages 365-373 doi: 10.1007/s11465-020-0585-3

Abstract: study presents two kinds of rolling robots that are able to roll by deforming their outer shapes with a singledegree of freedom.Dynamic rolling process is further analyzed on the basis of zero moment point method, and a morphing

Keywords： rolling locomotion     expandable mechanism     mechanism design     zero moment point (ZMP) analysis    

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An optimized solar-air degree-day method to evaluate energy demand for poultry buildings in different

Yang WANG, Baoming LI

Frontiers of Agricultural Science and Engineering 2020, Volume 7, Issue 4,   Pages 478-489 doi: 10.15302/J-FASE-2019289

Abstract:

The degree-day method is widely used to determine energy consumption but cannot be directly appliedThis study was designed to optimize the degree-day calculation and proposes a solar-air degree-day methodIn this paper, the solar-air degree-day method was proposed, which considers the effects of solar radiationmethod.The accuracy of calculating energy requirements was improved by the solar-air degree-day method in the

Keywords： base temperature     energy consumption     solar radiation     orientation     surface color    

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Regional seismic-damage prediction of buildings under mainshock–aftershock sequence

Xinzheng LU, Qingle CHENG, Zhen XU, Chen XIONG

Frontiers of Engineering Management 2021, Volume 8, Issue 1,   Pages 122-134 doi: 10.1007/s42524-019-0072-x

Abstract: Specifically, an MS–AS sequence-generation method is proposed to generate a potential MS–AS sequencenonlinear THA. (2) An MS–AS sequence can be generated reasonably by the proposed MS–AS sequence-generation method

Keywords： damage prediction     city-scale nonlinear time-history analysis     mainshock–aftershock sequence     multiple degree-of-freedom    

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An efficient method for the dynamic interaction of open structure-foundation systems

LIU Jingbo, GU Yin, LI Bin, WANG Yan

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 3,   Pages 340-345 doi: 10.1007/s11709-007-0045-8

Abstract: scattering problem is changed to a wave source problem by employing an equivalent seismic wave input methodSubsequently, the modal superposition method is adopted to solve the approximated hermetic system.Two numerical examples are presented to illustrate the characteristics of the proposed method: one isCompared with the traditional direct step-by-step integration method, the proposed method, with a sufficientsystems of many degrees of freedom.

Keywords： structure-foundation interaction     superposition     interaction problem     freedom     efficient    

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LCF behavior and life prediction method of a single crystal nickel-based superalloy at high temperature

Zhihua ZHANG,Huichen YU,Chengli DONG

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 4,   Pages 418-423 doi: 10.1007/s11465-015-0362-x

Abstract:

Low cycle fatigue tests were conducted on the single crystal nickel-based superalloy, DD6, with differentThe predicted results of the proposed modified SWT stress method agree well with the experimental data

Keywords： life prediction     single crystal superalloy     low cycle fatigue (LCF)     crystallographic orientation     strain    

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Evaluation method of multiaxial low cycle fatigue life for cubic single crystal material

CHEN Jiping, DING Zhiping

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 3,   Pages 278-282 doi: 10.1007/s11465-007-0048-0

Abstract: By taking account of the coupling effects, formulas of equivalent stress and strain for cubic singleOn the basis of the yield criterion and constitutive model of cubic single crystal materials, a subroutineLow cycle fatigue test data of the single crystal nickel-based superalloy are used to fit the differentThe equivalent stress and strain for a cubic single crystal material as failure parameters have the largestThe model was validated with LCF test data of CMSX-2 and DD3 single crystal nickel-based superalloys.

Keywords： orthotropic     regression analysis     crystal material     multiaxial     prediction    

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Numerical analysis of bearing behaviors of single batter piles under horizontal loads in various directions

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 2,   Pages 224-237 doi: 10.1007/s11709-022-0914-1

Abstract: The horizontal bearing behavior of a single batter pile (SBP) is vital to its application in practicalMoreover, an empirical design method is proposed based on the FE analysis results to predict the bearingThe method is confirmed to be effective, as confirmed by the close agreement between the predicting results

Keywords： single batter pile     skew horizontal load     model test     finite-element analysis     empirical design method    

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Accurate two-degree-of-freedom discrete-time current controller design for PMSM using complex vectors None

Meng WANG, Jia-qiang YANG, Xiang ZHANG, Chang-sheng ZHU

Frontiers of Information Technology & Electronic Engineering 2018, Volume 19, Issue 4,   Pages 569-581 doi: 10.1631/FITEE.1601390

Abstract: To improve the performance of the current loop, the direct design method in the discrete-time domainThen an accurate two-degree-of-freedom (2DOF) current controller with a third-order closed-loop transferThe 2DOF controller has more freedom in pole placement, and two schemes with a different cancelled pole-zeroAnalysis is conducted by the robust root locus method via the complex vector root locus and sensitivity

Keywords： Permanent magnet synchronous machine (PMSM)     Discrete-time current controller     Complex vector    

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Fused-like angles: replacement for roll-pitch-yaw angles for a six-degree-of-freedom grating interferometer Research Article

Di Chang, Pengcheng Hu, Jiubin Tan,di.chang@hit.edu.cn,hupc@hit.edu.cn,jbtan@hit.edu.cn

Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 12,   Pages 1551-1684 doi: 10.1631/FITEE.2000432

Abstract: is important in a six-degree-of-freedom but only a few studies have focused on this topic.angles, widely used in aviation, navigation, and robotics, are now being brought to the field of multi-degree-of-freedomhave already been used in research on the kinematic model and decoupling algorithm of the six-degree-of-freedom

Keywords： 无偏溯源角；光栅干涉仪；六自由度测量；角度表达方法    

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Title Author Date Type Operation

Development of dimensionless P-I diagram for curved SCS sandwich shell subjected to uniformly distributed blast pressure

Yonghui WANG, Ximei ZHAI

Journal Article

Error analysis and optimization of a 3-degree of freedom translational Parallel Kinematic Machine

S. SHANKAR GANESH,A. B. KOTESWARA RAO

Journal Article

On the location of the secondary instantaneous poles in two-degree-of-freedom spherical mechanisms

Soheil ZARKANDI

Journal Article

Stiffness of a 3-degree of freedom translational parallel kinematic machine

S. SHANKAR GANESH,A.B. KOTESWARA RAO

Journal Article

Singularity loci of an orthogonal spherical two-degree-of-freedom parallel mechanism

Jialun YANG, Feng GAO,

Journal Article

A survey of instantaneous poles for a class of two-degree-of-freedom spherical mechanisms

Soheil ZARKANDI

Journal Article

Design and locomotion analysis of two kinds of rolling expandable mobile linkages with a single degreeof freedom

Yanlin HAO, Yaobin TIAN, Jianxu WU, Yezhuo LI, Yan-An YAO

Journal Article

An optimized solar-air degree-day method to evaluate energy demand for poultry buildings in different

Yang WANG, Baoming LI

Journal Article

Regional seismic-damage prediction of buildings under mainshock–aftershock sequence

Xinzheng LU, Qingle CHENG, Zhen XU, Chen XIONG

Journal Article

An efficient method for the dynamic interaction of open structure-foundation systems

LIU Jingbo, GU Yin, LI Bin, WANG Yan

Journal Article

LCF behavior and life prediction method of a single crystal nickel-based superalloy at high temperature

Zhihua ZHANG,Huichen YU,Chengli DONG

Journal Article

Evaluation method of multiaxial low cycle fatigue life for cubic single crystal material

CHEN Jiping, DING Zhiping

Journal Article

Numerical analysis of bearing behaviors of single batter piles under horizontal loads in various directions

Journal Article

Accurate two-degree-of-freedom discrete-time current controller design for PMSM using complex vectors

Meng WANG, Jia-qiang YANG, Xiang ZHANG, Chang-sheng ZHU

Journal Article

Fused-like angles: replacement for roll-pitch-yaw angles for a six-degree-of-freedom grating interferometer

Di Chang, Pengcheng Hu, Jiubin Tan,di.chang@hit.edu.cn,hupc@hit.edu.cn,jbtan@hit.edu.cn

Journal Article