The uncertainty analysis is an effective sensitivity analysis method for system model analysis and optimization. However,the existing single-factor uncertainty analysis methods are not well used in the logistic suppor...The uncertainty analysis is an effective sensitivity analysis method for system model analysis and optimization. However,the existing single-factor uncertainty analysis methods are not well used in the logistic support systems with multiple decision-making factors. The multiple transfer parameters graphical evaluation and review technique（MTP-GERT） is used to model the logistic support process in consideration of two important factors, support activity time and support activity resources, which are two primary causes for the logistic support process uncertainty. On this basis,a global sensitivity analysis（GSA） method based on covariance is designed to analyze the logistic support process uncertainty. The aircraft support process is selected as a case application which illustrates the validity of the proposed method to analyze the support process uncertainty, and some feasible recommendations are proposed for aircraft support decision making on carrier.展开更多
Rational planning of spares configuration project is an effective approach to improve equipment availability as well as reduce life cycle cost （LCC）. With an analysis of various impacts on support system, the spares...Rational planning of spares configuration project is an effective approach to improve equipment availability as well as reduce life cycle cost （LCC）. With an analysis of various impacts on support system, the spares demand rate forecast model is constructed. According to systemic analysis method, spares support effectiveness evaluation indicators system is built, and then, initial spares configuration and optimization method is researched. To the issue of discarding and con-sumption for incomplete repairable items, its expected backorders function is approximated by Laplace demand distribution. Combining the （s-1, s） and （R, Q） inventory policy, the spares resup-ply model is established under the batch ordering policy based on inventory state, and the optimi-zation analysis flow for spares configuration is proposed. Through application on shipborne equipment spares configuration, the given scenarios are analyzed under two constraint targets：one is the support effectiveness, and the other is the spares cost. Analysis reveals that the result is consistent with practical regulation;therefore, the model＇s correctness, method＇s validity as well as optimization project＇s rationality are proved to a certain extent.展开更多
In this paper, meta-synthesis system approach （MSA） is applied to a consulting project on exploring constructing comprehensive transportation system in China. Firstly, brief introduction about the concept of compreh...In this paper, meta-synthesis system approach （MSA） is applied to a consulting project on exploring constructing comprehensive transportation system in China. Firstly, brief introduction about the concept of comprehensive transportation is given to indicate that comprehensive transportation is an open complex giant system, which thus MSA is applied to exploring its constructing in China. A group argumentation environment （GAE） is applied to facilitate group divergent thinking process about what the concerned topics are in the project and acquire qualitative hypotheses for meta-synthetic system modeling. A multi-agent system model is constructed to analyze competitive relations of passenger transport between railway and highway as a demonstration of modeling by rule, one of 6 strategies of meta-synthetic system modeling. An evaluation support system is developed to integrate a variety of indicators and their related measure methods by a framework of input-output-outcome of comprehensive transportation to facilitate consultants to monitor current state of operation and management of transport system and generate alternatives of a set of indicators to evaluate efficiency or effectiveness of the whole system or its elements on demand.展开更多
基金supported by the National Natural Science Foundation of China(71171008)
文摘The uncertainty analysis is an effective sensitivity analysis method for system model analysis and optimization. However,the existing single-factor uncertainty analysis methods are not well used in the logistic support systems with multiple decision-making factors. The multiple transfer parameters graphical evaluation and review technique（MTP-GERT） is used to model the logistic support process in consideration of two important factors, support activity time and support activity resources, which are two primary causes for the logistic support process uncertainty. On this basis,a global sensitivity analysis（GSA） method based on covariance is designed to analyze the logistic support process uncertainty. The aircraft support process is selected as a case application which illustrates the validity of the proposed method to analyze the support process uncertainty, and some feasible recommendations are proposed for aircraft support decision making on carrier.
基金co-supported by the General Armament Department Pre-research Foundation of China (Nos. 51304010206, 51327 020105)
文摘Rational planning of spares configuration project is an effective approach to improve equipment availability as well as reduce life cycle cost （LCC）. With an analysis of various impacts on support system, the spares demand rate forecast model is constructed. According to systemic analysis method, spares support effectiveness evaluation indicators system is built, and then, initial spares configuration and optimization method is researched. To the issue of discarding and con-sumption for incomplete repairable items, its expected backorders function is approximated by Laplace demand distribution. Combining the （s-1, s） and （R, Q） inventory policy, the spares resup-ply model is established under the batch ordering policy based on inventory state, and the optimi-zation analysis flow for spares configuration is proposed. Through application on shipborne equipment spares configuration, the given scenarios are analyzed under two constraint targets：one is the support effectiveness, and the other is the spares cost. Analysis reveals that the result is consistent with practical regulation;therefore, the model＇s correctness, method＇s validity as well as optimization project＇s rationality are proved to a certain extent.
基金This work was supported by National Natural Science Foundation of China under Grant No.79990583, 70221001 and Chinese Academy of Engineering. The original version was presented at the Congress of the IFSR2005.
文摘In this paper, meta-synthesis system approach （MSA） is applied to a consulting project on exploring constructing comprehensive transportation system in China. Firstly, brief introduction about the concept of comprehensive transportation is given to indicate that comprehensive transportation is an open complex giant system, which thus MSA is applied to exploring its constructing in China. A group argumentation environment （GAE） is applied to facilitate group divergent thinking process about what the concerned topics are in the project and acquire qualitative hypotheses for meta-synthetic system modeling. A multi-agent system model is constructed to analyze competitive relations of passenger transport between railway and highway as a demonstration of modeling by rule, one of 6 strategies of meta-synthetic system modeling. An evaluation support system is developed to integrate a variety of indicators and their related measure methods by a framework of input-output-outcome of comprehensive transportation to facilitate consultants to monitor current state of operation and management of transport system and generate alternatives of a set of indicators to evaluate efficiency or effectiveness of the whole system or its elements on demand.
