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Shallow foundation response variability due to soil and model parameter uncertainty

Prishati RAYCHOWDHURY,Sumit JINDAL

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 3,   Pages 237-251 doi: 10.1007/s11709-014-0242-1

Abstract: The present work intends to investigate the effect of soil and model parameter uncertainty on the responseparameters on shallow foundation responses are investigated using first-order second-moment (FOSM) analysisthe importance of proper characterization of soil parameters for reliable soil-foundation response analysis

Keywords： shallow foun dation     sensitivity analysis     centrifuge data     first-order-second-moment (FOSM) method     parameter    

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Parameter studies on impact in a lap joint

Amir M. RAHMANI,Elizabeth K. ERVIN

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 1,   Pages 64-77 doi: 10.1007/s11465-014-0322-x

Abstract: Modal analysis with base excitation is solved, and time histories of contact points are closely monitoredEach parameter’s effect on system response is presented including unstable regions, unique trend

Keywords： impact mechanics     contact     joint behaviour     modal analysis     parameter study    

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Semi-analytical approach for free vibration analysis of cracked beams resting on two-parameter elastic

Alborz MIRZABEIGY,Firooz BAKHTIARI-NEJAD

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 2,   Pages 191-202 doi: 10.1007/s11465-014-0293-y

Abstract:

In present study, free vibration of cracked beams resting on two-parameter elastic foundation with

Keywords： free vibration     cracked beam     elastic foundation     restrained ends     differential transform method    

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Principle of maximum entropy for reliability analysis in the design of machine components

Yimin ZHANG

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 1,   Pages 21-32 doi: 10.1007/s11465-018-0512-z

Abstract: We obtained the first four moments of the state function for reliability analysis and design.

Keywords： machine components     reliability     arbitrary distribution parameter     principle of maximum entropy    

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Analysis of the current situation of environmental policy of China and establishment of distributed environmental

Chaoyang FU,Wangfeng LI

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 2,   Pages 310-316 doi: 10.1007/s11783-014-0658-9

Abstract: into the implementation of environmental policies, market-oriented means and the methods of economic analysis

Keywords： environmental policy     distributed environment policy     distributed parameter model     lumped parameter model    

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Experimental study of modal parameter identification in a simulated ambient-excited structure

JI Xiaodong, QIAN Jiaru, XU Longhe

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 3,   Pages 281-285 doi: 10.1007/s11709-007-0036-9

Abstract: Structure modal parameter online identification was used to monitor the structural health as evidencedThe mass-normalized mode shapes were obtained from the eigen-sensitivity analysis.The experimental modal analysis was performed on a two-story steel braced frame model excited by simulatedFrom finite element analysis results and the experimental data, it is shown that this method is effective

Keywords： eigensystem realization     eigen-sensitivity analysis     realization algorithm     vibration     effective    

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The Parameter Analysis of the Process in Cylinder for Light Oil-based Fuel in Gasoline Engine

Sun Lingling

Strategic Study of CAE 2000, Volume 2, Issue 12,   Pages 78-83

Abstract: To check its quality, a series of tests on process parameter in cylinder are done.engine with light oil-based fuel is close to that with gasoline and the standard errors of process parameter

Keywords： light oil     gasoline engine     process parameter in cylinder     antiknock property    

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Parameter for judging reactivity of coal and coke

HE Hongzhou, LUO Zhongyang, CEN Kefa

Frontiers in Energy 2008, Volume 2, Issue 3,   Pages 354-358 doi: 10.1007/s11708-008-0052-z

Abstract: eliminate the judgment error of char reactivity arising from different carbon content of samples, a new parameterIt is defined as the quotient of the maximum weight loss rate in non-isothermal thermogravimetric analysisThe results show that the specific maximum weight loss rate can be used as a commonality parameter to

Keywords： thermogravimetric analysis     specific maximum     different lithotype     experiment     TGA experiment    

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Processing parameter optimization of fiber laser beam welding using an ensemble of metamodels and MOABC

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0703-5

Abstract: In fiber laser beam welding (LBW), the selection of optimal processing parameters is challenging and plays a key role in improving the bead geometry and welding quality. This study proposes a multi-objective optimization framework by combining an ensemble of metamodels (EMs) with the multi-objective artificial bee colony algorithm (MOABC) to identify the optimal welding parameters. An inverse proportional weighting method that considers the leave-one-out prediction error is presented to construct EM, which incorporates the competitive strengths of three metamodels. EM constructs the correlation between processing parameters (laser power, welding speed, and distance defocus) and bead geometries (bead width, depth of penetration, neck width, and neck depth) with average errors of 10.95%, 7.04%, 7.63%, and 8.62%, respectively. On the basis of EM, MOABC is employed to approximate the Pareto front, and verification experiments show that the relative errors are less than 14.67%. Furthermore, the main effect and the interaction effect of processing parameters on bead geometries are studied. Results demonstrate that the proposed EM-MOABC is effective in guiding actual fiber LBW applications.

Keywords： laser beam welding     parameter optimization     metamodel     multi-objective    

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An efficient prediction framework for multi-parametric yield analysis under parameter variations Article

Xin LI,Jin SUN,Fu XIAO

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 12,   Pages 1344-1359 doi: 10.1631/FITEE.1601225

Abstract: Due to continuous process scaling, process, voltage, and temperature (PVT) parameter variations haveFirst, the framework models the performance metrics in terms of PVT parameter variations by using the

Keywords： Yield prediction     Parameter variations     Multi-parametric yield     Performance modeling     Sparse representation    

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Determination of effective stress parameter of unsaturated soils: A Gaussian process regression approach

Pijush Samui, Jagan J

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 2,   Pages 133-136 doi: 10.1007/s11709-013-0202-1

Abstract: article examines the capability of Gaussian process regression (GPR) for prediction of effective stress parametervolumetric water content ( ), residual water content ( ), bubbling pressure ( ), suction ( ) and fitting parameterA sensitivity analysis has been done to determine the effect of each input parameter on .

Keywords： unsaturated soil     effective stress parameter     Gaussian process regression (GPR)     artificial neural network    

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Vibration analysis of nano-structure multilayered graphene sheets using modified strain gradient theory

Amir ALLAHBAKHSHI,Masih ALLAHBAKHSHI

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 2,   Pages 187-197 doi: 10.1007/s11465-015-0339-9

Abstract: Kirchhoff micro-plate model to study the effect of interlayer van der Waals (vdW) force for the vibration analysisstructural size, especially when the plate thickness is on the same order of the material length scale parameter

Keywords： graphene     van der Waals (vdW) force     modi- fied strain gradient elasticity theory     size effect parameter    

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Heat transfer and fluid flow analysis of an artificially roughened solar air heater: a CFD based investigation

Anil Singh YADAV,J. L. BHAGORIA

Frontiers in Energy 2014, Volume 8, Issue 2,   Pages 201-211 doi: 10.1007/s11708-014-0297-7

Abstract: The thermo-hydraulic performance parameter for = 10.71 is found to be the best for the investigated

Keywords： heat transfer     pressure drop     thermo-hydraulic performance parameter    

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1000 MW ultra-supercritical turbine steam parameter optimization

FENG Weizhong

Frontiers in Energy 2008, Volume 2, Issue 2,   Pages 187-193 doi: 10.1007/s11708-008-0030-5

Abstract: The 2 × 1000 MW ultra-supercritical steam turbine of Shanghai Waigaoqiao Phase III project, which uses grid frequency regulation and overload control through an overload valve, is manufactured by Shanghai Turbine Company using Siemens technology. Through optimization, the steam pressure is regarded as the criterion between constant pressure and sliding pressure operation. At high circulating water temperature, the turbine overload valve is kept closed when the unit load is lower than 1000 MW while at other circulating water temperatures the turbine can run in sliding pressure operation when the unit load is higher than 1000 MW and the pressure is lower than 27 MPa This increases the unit operation efficiency. The 3D bending technology in the critical piping helps to reduce the project investment and minimize the reheat system pressure drop which improves the unit operation efficiency and safety. By choosing lower circulating water design temperature and by setting the individual Boiler Feedwater Turbine condenser to reduce the exhaust steam flow and the heat load to the main condenser, the unit average back pressure and the terminal temperature difference are minimized. Therefore, the unit heat efficiency is increased.
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The economic impact analysis of process parameters change of large section slurry shield in urban water-rich

Wang Ying

Strategic Study of CAE 2010, Volume 12, Issue 12,   Pages 108-112

Abstract: The cost difference and change were analyzed according to the analysis of construction efficiency and

Keywords： shield construction     process parameter     cost analysis    

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Title Author Date Type Operation

Shallow foundation response variability due to soil and model parameter uncertainty

Prishati RAYCHOWDHURY,Sumit JINDAL

Journal Article

Parameter studies on impact in a lap joint

Amir M. RAHMANI,Elizabeth K. ERVIN

Journal Article

Semi-analytical approach for free vibration analysis of cracked beams resting on two-parameter elastic

Alborz MIRZABEIGY,Firooz BAKHTIARI-NEJAD

Journal Article

Principle of maximum entropy for reliability analysis in the design of machine components

Yimin ZHANG

Journal Article

Analysis of the current situation of environmental policy of China and establishment of distributed environmental

Chaoyang FU,Wangfeng LI

Journal Article

Experimental study of modal parameter identification in a simulated ambient-excited structure

JI Xiaodong, QIAN Jiaru, XU Longhe

Journal Article

The Parameter Analysis of the Process in Cylinder for Light Oil-based Fuel in Gasoline Engine

Sun Lingling

Journal Article

Parameter for judging reactivity of coal and coke

HE Hongzhou, LUO Zhongyang, CEN Kefa

Journal Article

Processing parameter optimization of fiber laser beam welding using an ensemble of metamodels and MOABC

Journal Article

An efficient prediction framework for multi-parametric yield analysis under parameter variations

Xin LI,Jin SUN,Fu XIAO

Journal Article

Determination of effective stress parameter of unsaturated soils: A Gaussian process regression approach

Pijush Samui, Jagan J

Journal Article

Vibration analysis of nano-structure multilayered graphene sheets using modified strain gradient theory

Amir ALLAHBAKHSHI,Masih ALLAHBAKHSHI

Journal Article

Heat transfer and fluid flow analysis of an artificially roughened solar air heater: a CFD based investigation

Anil Singh YADAV,J. L. BHAGORIA

Journal Article

1000 MW ultra-supercritical turbine steam parameter optimization

FENG Weizhong

Journal Article

The economic impact analysis of process parameters change of large section slurry shield in urban water-rich

Wang Ying

Journal Article