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Study on steel deck pavement rutting model of composite guss asphalt concrete

Zhang Dengjing

Strategic Study of CAE 2013, Volume 15, Issue 8, Pages 63-69

Abstract: load, speed and driveway, combined with the study of the phenomenon of overloading in Nanjing area, ruttingevaluation model of steel deck pavement of composite guss asphalt concrete were put forward and validated

Keywords： steel deck pavement composite guss asphalt concrete dynamic modulus equivalent axles rutting evaluation

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Wheel tracking methods to evaluate moisture sensitivity of hot-mix asphalt mixtures

Jie HAN,Harihar Shiwakoti

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 1, Pages 30-43 doi: 10.1007/s11709-016-0318-1

Abstract: Existing test methods to determine moisture sensitivity in hot-mix asphalt (HMA) mixtures are time consuming and inconsistent. This research focused on wheel tracking devices to evaluate moisture sensitivity. The Asphalt Pavement Analyzer (APA) and the Hamburg Wheel Tracking Device (HWTD) were used for this research. Compacted cylindrical samples were fabricated using a Superpave Gyratory compactor. This study selected two most commonly used mixtures, SM-12.5A with PG 64-22 binder in overlay projects and SM-19A mixtures with PG 64-22 binder for major modification projects at Kansas Department of Transportation. Test results show that APA tests could induce stripping in most samples without any anti-stripping agent, which could be identified visually. However, APA results did not indicate any stripping inflection point while the HWTD results showed stripping inflection points, which are important to identify stripping potential of mixtures. The APA results show that wet tests are severe at lower temperatures. The HWTD results show improvement in the performance using anti-stripping agents at later stage. The HWTD test is more effective as a rapid test method in case of determining moisture sensitivity. Laboratory results from this study should be verified and correlated with field performance.

Keywords： hot-mix asphalt moisture sensitivity rutting wheel tracking test

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Study on factor of guss asphalt mixture performance

Wang Hongchang,Li Guofen,Zhang Dengjing

Strategic Study of CAE 2013, Volume 15, Issue 8, Pages 70-74

Abstract: The road performance was verified by high temperature rutting test and low temperature bending test.

Keywords： road engineering steel deck pavement guss asphalt concrete fluidity penetration rutting

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An overview of anti-shear behavior study of asphalt mixtures

Chen Guangwei,Li Hongtao,Chen Rongsheng

Strategic Study of CAE 2010, Volume 12, Issue 4, Pages 90-94

Abstract: The analysis and evaluation of 9 test methods is helpful for related personnel to choose these test methodsthe determination of relevant coefficient in tolerable shear stress test method and calibration of rutting

Keywords： asphalt mixtures rutting shear test anti-shear strength

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Establishment of the Comprehensive Evaluation System of Cold Stamping Die Quality

LU Xiao-chun, GUO Sheng, RUAN Feng

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 1, Pages 80-84 doi: 10.1007/s11465-005-0021-8

Abstract:

A comprehensive evaluation system of die quality, a multiplayer hierarchical amendment index systemaccording to the characteristics of cold stamping die production, an evaluation standard referring tothe technique and design rules of dies, and a scientific evaluation by using the multiplayer hierarchicaland the fuzzy comprehensive evaluation methods are presented in this paper.

Keywords： scientific evaluation stamping multiplayer hierarchical technique evaluation standard

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Research on port ecological suitability evaluation index system and evaluation model

Yaofeng XIE,Xia LV,Ru LIU,Liuyan MAO,Xiaoxi LIU

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 1, Pages 65-70 doi: 10.1007/s11709-014-0258-6

Abstract: Therefore, it’s urgent to establish a scientific and complete system of port ecological suitability evaluationThis paper pointed out the characteristics of port ecological effects and the principles of selecting evaluationOn this basis, we constructed the port ecological suitability evaluation index.quantitative analytic hierarchy process, to meet the multi-level, multi-objective characteristics of evaluationThe evaluation index system and evaluation model can be used to analysis the ecological suitability of

Keywords： port ecological suitability press-state-response (PSR) model evaluation index system

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Coupling evaluation for material removal and thermal control on precision milling machine tools

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 1, Pages 12-12 doi: 10.1007/s11465-021-0668-9

Abstract: Machine tools are one of the most representative machining systems in manufacturing. The energy consumption of machine tools has been a research hotspot and frontier for green low-carbon manufacturing. However, previous research merely regarded the material removal (MR) energy as useful energy consumption and ignored the useful energy consumed by thermal control (TC) for maintaining internal thermal stability and machining accuracy. In pursuit of energy-efficient, high-precision machining, more attention should be paid to the energy consumption of TC and the coupling relationship between MR and TC. Hence, the cutting energy efficiency model considering the coupling relationship is established based on the law of conservation of energy. An index of energy consumption ratio of TC is proposed to characterize its effect on total energy usage. Furthermore, the heat characteristics are analyzed, which can be adopted to represent machining accuracy. Experimental study indicates that TC is the main energy-consuming process of the precision milling machine tool, which overwhelms the energy consumption of MR. The forced cooling mode of TC results in a 7% reduction in cutting energy efficiency. Regression analysis shows that heat dissipation positively contributes 54.1% to machining accuracy, whereas heat generation negatively contributes 45.9%. This paper reveals the coupling effect of MR and TC on energy efficiency and machining accuracy. It can provide a foundation for energy-efficient, high-precision machining of machine tools.

Keywords： machine tools cutting energy efficiency thermal stability machining accuracy coupling evaluation

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Ecological security evaluation of Africa

Huihui WEI, Wenjuan ZHANG, Feng ZHANG, Guojun SUN

Frontiers of Agricultural Science and Engineering 2020, Volume 7, Issue 4, Pages 467-477 doi: 10.15302/J-FASE-2020320

Abstract: In this study, we constructed an evaluation system based on a pressure-state-response model and evaluated

Keywords： Africa ecological security evaluation system PSR model

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Basic model study on efficiency evaluation in collaborative design work process

XIE Qiu, YANG Yu, LI Xiaoli, ZHAO Ningyu

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 3, Pages 344-349 doi: 10.1007/s11465-007-0060-4

Abstract: During the efficiency evaluation process of collaborative design work, because of the lack of efficiencyevaluation models, a basic analytical model for collaborative design work efficiency evaluation is proposedapplication process and steps of this basic analytical model are elaborated when used for efficiency evaluation

Keywords： function system work evaluation process efficiency evaluation design work

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Tender evaluation through efficiency analysis for public construction contracts

Stefan NIEWERTH, Peter VOGT, Markus THEWES

Frontiers of Engineering Management 2022, Volume 9, Issue 1, Pages 148-158 doi: 10.1007/s42524-020-0119-z

Abstract: of various criteria, such as the price, life-cycle costs, environmental, and social aspects, in the evaluationHowever, the established evaluation formulas, which are used to obtain the best value for money procurementThe existing evaluation formulas exhibit mathematical weaknesses, wherein scoring indices do not express, a conflict is observed between the political requirement of non-monetary award criteria and their evaluationSpecifically, this study explores the essential problems of existing evaluation formulas and develops

Keywords： bid evaluation public procurement best value for money data envelopment analysis contractor selection

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Fractal characteristic evaluation and interpolation reconstruction for surface topography of drilled

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 4, Pages 840-854 doi: 10.1007/s11465-021-0643-5

Abstract: Based on the two-dimensional evaluation results, three-dimensional surface topographies in five typical

Keywords： surface topography fractal evaluation fractal interpolation reconstruction composite

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Post-evaluation of a water pollution control plan: methodology and case study

Lin ZENG,Xin DONG,Siyu ZENG,Tianzhu ZHANG,Jing LI,Jining CHEN

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 4, Pages 712-724 doi: 10.1007/s11783-015-0773-2

Abstract: This paper proposes a three-step, post-evaluation methodology to analyze the implementation result ofFirst, a multi-attribute evaluation method based on an index system is established to score the enforcementTherefore, this case study demonstrates the feasibility and flexibility of the proposed post-evaluation

Keywords： river basin water pollution control plan post plan evaluation multi-attribute comprehensive evaluation

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Evaluation of ICUs and weight of quality control indicators: an exploratory study based on Chinese ICU

Frontiers of Medicine 2023, Volume 17, Issue 4, Pages 675-684 doi: 10.1007/s11684-022-0970-x

Abstract: applied, the 15 indicators were divided into 6 core elements that varied in weight regarding quality evaluation

Keywords： critical care medicine quality control evaluation exploratory factor analysis (EFA) model

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Manufacturing system modeling and performance evaluation based on improved stochastic statechart

ZHANG Guojun, HE Jiabing, ZHU Haiping, CHEN Xuan

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 4, Pages 453-458 doi: 10.1007/s11465-007-0078-7

Abstract: shows that the improved stochastic statechart can effectively simplify the modeling and performance evaluation

Keywords： performance evaluation different configuration improved continuous-time

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Risk evaluation for the task transfer of an aircraft maintenance program based on a multielement connection

Frontiers of Engineering Management doi: 10.1007/s42524-023-0282-0

Abstract: This paper proposes a framework for evaluating the efficacy and suitability of maintenance programs with a focus on quantitative risk assessment in the domain of aircraft maintenance task transfer. The analysis is anchored in the principles of Maintenance Steering Group-3 (MSG-3) logic decision paradigms. The paper advances a holistic risk assessment index architecture tailored for the task transfer of maintenance programs. Utilizing the analytic network process (ANP), the study quantifies the weight interrelationships among diverse variables, incorporating expert-elicited subjective weighting. A multielement connection number-based evaluative model is employed to characterize decision-specific data, thereby facilitating the quantification of task transfer-associated risk through the appraisal of set-pair potentials. Moreover, the paper conducts a temporal risk trend analysis founded on partial connection numbers of varying orders. This analytical construct serves to streamline the process of risk assessment pertinent to maintenance program task transfer. The empirical component of this research, exemplified through a case study of the Boeing 737NG aircraft maintenance program, corroborates the methodological robustness and pragmatic applicability of the proposed framework in the quantification and analysis of mission transfer risk.

Keywords： risk evaluation maintenance steering group analytic network process task transfer maintenance program