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29 February 2016, Volume 19 Issue 1 Previous Issue    Next Issue

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Social manufacturing: drivers, research status, and trends JIANG Pingyu，DING Kai，LENG Jiewu 2016, 19 (1):  1-9.  Abstract ( 1035 )   Save Combined with the characteristics of current manufacturing industry, social manufacturing paradigm is introduced from two perspectives: transformation of manufacturing enterprises and shift of manufacturing paradigms. Discussions about the drivers of social manufacturing are given, and related work on social manufacturing is summarized. Furthermore, research trends and challenges of social manufacturing are addressed. Social manufacturing would satisfy the mass personalized requirements of customers, and handle the complex sharing, collaborations, and interaction problems among different kinds of stakeholders. It moves us closer to the vision of peer production in the future manufacturing industry. References | Related Articles | Metrics

An Overview of Management and Optimization of Urban Transportation System FU Hui, WU Naiqi, HU Gang 2016, 19 (1):  10-15.  Abstract ( 1069 )   Save From the point view of the balance between traffic demand and supply of urban road network, the mechanism of urban traffic problem is discussed. After the overview of the researches on travel demand management, operation management, and emergency management of urban transportation system, the research trends are pointed out, concerning such issues as the integration of multiple traffic measures, socialpsychological behaviors of drivers, the evaluation and simulation of transportation policies, and, the application of transportation big data. References | Related Articles | Metrics

Maintenance Scheduling Optimization on Multi-component Serialparallel System Based on Genetic Algorithm and Prognostic Information LIU Qinming1, SUN Junhua, LYU Wenyuan, LI Yaqin 2016, 19 (1):  16-23.  Abstract ( 905 )   Save he multi-component maintenance scheduling model is developed, which includes prognostic information, maintenance cost and action. First, the Weibull distribution is used to describe the degradation process. The minor, imperfect and replacement maintenance actions are defined, and the impact on the failure is described. Failure cost, maintenance cost, resource cost and downtime cost are considered. The cost model of one maintenance activity is developed. Then, based on the cost model of each maintenance activity, the multistage total cost rate model is proposed. Finally, the effectiveness of the proposed model is verified by a series of computational experiments. References | Related Articles | Metrics

Equipment Maintenance Method of a Complex Mechanical Assembly System under Uncertain Environment YAN Zhengfeng1, LIU Meng1, PENG Jiangang2 2016, 19 (1):  24-30.  Abstract ( 828 )   Save To guarantee continuity and decrease maintenance cost of a complex mechanical assembly system under uncertain environment, a dynamic selection method of maintenance policy based on Markov decision is put forward. On the basis of the comprehensive consideration to the cost of operating, inventory, maintenance and the cost due to the lost production, a reliability-cost model is established. The model takes the secondary production system as the research object, equipment condition and the buffer inventory as independent variables, and reliability-cost as objective function. The best maintenance policy in different conditions of production system is derived by simulated annealing algorithm and fuzzy nonlinear programming. The method decreases downtime, reduces equipment maintenance frequency, and provides basis for designing the production line and scheduling the maintenance plan. The calculation analysis of samples proves the effectiveness of the model. References | Related Articles | Metrics

Product Overhaul Strategy Formulation under Twodimensional Warranty WANG Yukun, LIU Zixian 2016, 19 (1):  31-37.  Abstract ( 835 )   Save In the previous research on maintenance strategy under warranty, the effect of customer satisfaction on the cost to the manufacturer has been ignored. According to this shortcoming, the hidden loss due to the drop of customer satisfaction is considered in order to develop an effective maintenance strategy under twodimensional warranty for the manufacturer. The expected total cost analysis models under the minimal repair strategy and the overhaul strategy are respectively developed. Taking the sensor of the airbag system in the automobile product for example, the optimal overhaul strategy is obtained through twostage process. The results show that compared with the minimal repair strategy, implementing the overhaul strategy can effectively reduce by 22% the total expected cost to the manufacturer, and increase to 61% the probability of repurchase of the customer. This provides effective decisionmaking support for the manufacturer to formulate the maintenance strategy under twodimensional warranty. References | Related Articles | Metrics

A Decision Optimization Model for Product Extended Warranty Based on the Life Cycle Cost Analysis YANG Zhiyuan, CHENG Zhonghua, DENG Lijie, LI Zhiwei 2016, 19 (1):  38-44.  Abstract ( 884 )   Save  With the increasing awareness of product life cycle cost (LCC), extended warranty has become the new focus of manufacturers. Extended warranty has significant influence on the product maintenance cost and market competition. In order to obtain the decision optimization project of the extended warranty with lower LCC, based on the consideration of preventive maintenance, the price decisionmaking strategy of extended warranty for manufacturer is analyzed, and then, the decision optimization model for product extended warranty is proposed to minimize the consumer maintenance cost of unit time during the product service life, and the optimization model is solved by grid search algorithm. With the method of grid search and simulation software Matlab, a numerical example is given to validate the rationality and effectiveness of the model and algorithm. It shows that the maintenance cost of unit time reduces and the life length increases on the basis of protecting the interests of the manufacturer, so the consumer′s optimal decision project is derived. References | Related Articles | Metrics

A Research on Multimodal Transportation Scheduling Model of Hazardous Chemical Materials in Tank Containers HE Hongdi，XIE Jing，DING Yi，LIN Guolong 2016, 19 (1):  45-50.  Abstract ( 887 )   Save  With the rapidly growing demands of hazardous chemical materials, transport accidents are more and more frequent. In order to reduce the risk of transportation and ensure the transportation safety, a research is conducted by connecting scheduling problems of hazardous chemical materials with multimodal transportation and the hazardous chemical materials packed in tank containers. A multimodal transportation scheduling model of hazardous chemical materials in tank containers is established based on the minimum cost and risk under a time constraint. At the same time, a fuzzy algorithm based on twodimensional Euclidean distance is used to solve the model. The case study verifies that the application of multimodal transport to scheduling problem of hazardous chemical materials is beneficial to reduce risks and ensure safety of the scheduling. In addition, this method can reach the goal of minimizing cost within the scope of the controllable risk and it is a good reference for the logistics enterprise to do scheduling plan. References | Related Articles | Metrics

Ecommerce Ending Logistics Resilient Distribution Strategy Research Based on the Extreme Optimization—Ant Colony Algorithm RUAN Huan1, GENG Liang1,2, XIAO Renbin1 2016, 19 (1):  51-60.  Abstract ( 915 )   Save A study is conducted into the process called the ending logistics in which goods are delivered to customers from the distribution center in ecommerce logistics distribution. To reduce distribution cost and improve service quality, the vehicle routing problem is combined with the characteristics of ecommerce consumers′ demand, namely “big varieties, small quantity, multiple batches and short cycle”. Based on the uncertainty in customer daily demand, the informatization resilience distribution strategy is put forward. A model with the target of minimizing the per capita cost is established along with an improved ant colony algorithm based on the extreme dynamics to optimize the logistics distribution path. The convergence efficiency of the algorithm has been largely improved through the “optimization” and “elimination” and by combining “global search” with “local search”. Finally, an example is taken to verify the resilience of the algorithm faced with uncertainty demands. Effective distribution of ecommerce logistics can be achieved based on this research. References | Related Articles | Metrics

An Approach to Twoechelon Inventory Control of Aircraft LRU for Airline FU Weifang1, BIAN Jiao2 2016, 19 (1):  61-65.  Abstract ( 920 )   Save  Airlines meet maintenance requirement of line replacement unit (LRU) with twoechelon supply pattern by base warehouse and central warehouse and set high fill rate to support airplane operation. Under this situation, it raises a problem as to how to decide LRU stock level in different base and central warehouses. Firstly, the requirement rate of LRU is calculated by Maximum Likelihood  method using its failure data. Secondly, a twoechelon inventory control model is established to optimize total inventory costs under the constraint of joint fill rate. At last, a marginal analysis algorithm is designed to solve this model. An example is given to show that this approach is effective and reduces inventory cost. References | Related Articles | Metrics

Dynamic Buffer Management Approach for Wine Packing Production HE Xiaohu, XIE Yong, WANG Hongwei 2016, 19 (1):  66-73.  Abstract ( 804 )   Save Workinprocess (WIP) controlling can reduce production cost for enterprise, especially those flowshop job modes with capacity constraint resource (CCR). A drumbufferrope (DBR) method with dynamic buffer management approach is proposed. By setting a monitoring window on buffer as a time interval function for tracking the buffer consumption status during each monitoring window according to the frequency of WIP penetrating safety buffer and the condition of stockout, the ability of safety threshold adjusting to buffer is achieved. To verify the efficiency of the approach proposed, three experimental groups are designed. By comparing the results with traditional buffer management approach, the proposed dynamic buffer management has more than 22% improvement on WIP controlling, and the proposed approach can effectively reduce production line′s WIP inventory References | Related Articles | Metrics

A Study of Optimizing Functional Response Problems Based on Principal Component Analysis XU Jing HE Zhen CHEN Zhezhi YUAN Rong 2016, 19 (1):  74-80.  Abstract ( 867 )   Save A method is presented to optimize the profile based on functional response optimization method combining the dual response surface method with the satisfaction function based on principal component analysis. The response value of each observation point is treated as an independent response. The Profile has been as multiresponse optimization problem of nominalthebest type. First, desirability function is used to measure the mean and variance for each observed point. Finally, the principal component analysis (PCA) is adopted to derive the overall performance index (OPI) for multiple response which is the weighted sum of principal values of both the desirability values of mean and variance for each observed point. A methodology is utilized for optimizing the problem of correlated observed points while involving the simultaneous optimization of the process mean and variance. Examples show that the method is simple, with satisfactory optimization results. References | Related Articles | Metrics

Sequencing Engine MixedModel Assembly Lines under Buffer Size Constraints WANG Binggang 2016, 19 (1):  81-85.  Abstract ( 925 )   Save Two optimization objectives, minimizing the variation in crucial parts consumption and the makespan, are simultaneously considered to study the sequencing problems in car engine mixedmodel assembly lines under limited intermediate buffer size constraints. The mathematical models are presented. Since the problem addressed is NPhard, a multiobjective genetic algorithm is proposed, in which hybrid crossover operators and a heuristic mutation method are adopted, and the Pareto ranking method and the sharing function method are employed to evaluate the individuals′ fitness. The optimization result of the multiobjective genetic algorithm is compared with that of a multiobjective annealing algorithm. The comparison result illustrates that the multiobjective genetic algorithm proposed outperforms the multiobjective annealing algorithm in respect of the solutions′ desirability and also the computation efficiency. The multiobjective genetic algorithm is an efficient algorithm for solving the sequencing problem in mixedmodel assembly lines under buffer size constraints. References | Related Articles | Metrics

A Study of Behaviors in Premovement in Highrise Residential Building Fire QIN Hua, LIU Bole, WANG Dingding 2016, 19 (1):  86-90.  Abstract ( 887 )   Save High building residents behavioral responses after hearing fire signals and before determining to escape are studied. The virtual interactive residential interior scenes are methodologically constructed. Based on the scenes, participants behaviors in the period of premovement are investigated. The results indicate that, 1) while the fire signals are sent out, few people make an immediate escape in reaction; 2) behaviors of participants living in the higher rises are relatively fewer and the total time spent in premovement is shorter than that of those in the lower rises; and 3) the number of floors and risk acceptance exert a significant impact on the total time spent in premovement. References | Related Articles | Metrics

A Study of Personality and Effect of Task Difficulty on Visual Search Performance YANG Lindong, YU Ruifeng 2016, 19 (1):  91-96.  Abstract ( 900 )   Save Visual search is very common in both everyday life and industrial application. Numerous studies have been done to investigate the influencing factors of visual search performance. However, few studies have explored the effect of personality on visual search performance. MBTI (MyersBriggs type indicator) is used to examine personality and task difficulty (high vs. low) on visual search performance. Results indicate that introverts have better accuracy in low difficulty condition than extroverts. Participants with perceiving preference have shorter reaction time than those with judging preference regardless of task difficulty. The interactive effect of personality and task difficulty on search performance is significant. Guidelines are provided to visual search operators selection and training. References | Related Articles | Metrics

A Crosssectional Study of Occupational Musculoskeletal Disorders in Online Store Employees HUANG Fang1, SUN Linhui2, CHEN Juhong1, SUN Yu2, CHENG Yukong2 2016, 19 (1):  97-101.  Abstract ( 794 )   Save The distribution and influencing factors of MSDs around onlineshop employees are under study and suggestions for improvement proposed. Using a Musculoskeletal disorders questionnaire, it is found that the annual prevalence reached 94.7%. As onlineshop employees must spend a long time working in front of the computer, they suffer the highest incidences of neck and shoulder disorders. So the enterprise should design office layout and HMI scientifically in the view of ergonomics. As for onlineshop employees, they should adjust their work postures and have reasonable and frequent changes, and then try to take frequent coffee breaks. Meanwhile, some physical therapies also have effect to alleviate and treat MSDs. References | Related Articles | Metrics

A Study of the Correlation between Music and Color Based on Neuromarketing ZHU Kun1, LI Yongjian1, ZENG Weibin2 2016, 19 (1):  102-107.  Abstract ( 1074 )   Save  Aiming at processing analysis of color and music, the two symbols which belong to different sensoriums, the interrelation between them is studied. Eventrelated potentials (ERP) are introduced and the records of recognition process analyzed. Discrepancy is showed on the relativity of different color and music. The green color holds the highest relativity to campus songs which represents its bigger amplitude P300 and more delitescence. So it is proposed that in advertising design and webpage show, a combination with high correlation of music and color should be adopted, which would play a combined effect, enhancing marketing effectiveness. References | Related Articles | Metrics

Methods of Assigning Multiskilled Human Resources and Scheduling Projects  Based on Resource Leveling LI Ming1,2，XU Zhe2 2016, 19 (1):  108-114.  Abstract ( 901 )   Save To improve the efficiency of human resources used in the project, an optimization method of assigning multiskilled human resources and scheduling projects is put forward. First of all, with a heuristic algorithm presented to level the human resources, a scheduling scheme with low peak in human resource requirement can be obtained. Then, based on the determined scheme, the overlapping relationships between activities are identified and converted to a series of effective constraints to assigning multiskilled human resources. Finally, an integer programming model is established and calculated by programming. The research results show that the method can be used to quickly find a near optimal solution of the problem, using less human resource to complete the tasks, and reduce the cost of human resources effectively. References | Related Articles | Metrics

A Study of Inventory Financing Strategy Based on Sales Effort Level LI Chao1, WU Dan2 2016, 19 (1):  115-121.  Abstract ( 807 )   Save The decision problem of inventory pledge financing considering enterprise′s sales effort is investigated. A stochastic market demand model which is impacted by sales effort of capital constrained medium or small retail enterprises is established; and the enterprise′s optimal inventory pledge volume decision and sales effort decision, and the bank′s optimal inventory pledge ratio decision under risk neutral and loss aversion situations are investigated; the impact from sales effort on inventory pledge volume is analysed. It is concluded that the retail enterprise′s sales effort brings positive effect to the financing participants, and the retail enterprise will thus enlarge its inventory pledge volume to gain more loan, and the bank can level up its loan volume from enlarging inventory pledge ratio to gain larger revenue. References | Related Articles | Metrics

A Research on Competitive Multisourcing Supply Chain Network Design and Resilient Management FANG Hanwei1，CHEN Kebing2 2016, 19 (1):  122-128.  Abstract ( 870 )   Save Problem in competitive multisourcing network design of supply chain with resilient management based on a positive supply is studied. A supply chain integrative framework is established, integrating resilient manufacturing pricing/resilient empty inventory punishment/ resilient prewarning/resilient members selection/resilient congestion delay/resilient transportation. Then a competitive multisourcing network with resilient management is established based on a general operational model of supply chain. According to the potential risk of the various distributors′ failure, a multiplesource supply with resilient management is used. Finally, a simulation is proposed with multilevel expectations tolerance and global supply chains, so as to inspect their influence to the target function, resilient performance of positive framework and manufacturers′ competition. References | Related Articles | Metrics

A Comparative Analysis of Internal and External Financing Mode of Subordinate Supply Chain under Two-part Tariff Contract YANG Yong1，FU Qiang1，SHI Hui2 2016, 19 (1):  129-134.  Abstract ( 912 )   Save Regarding quantity flexible contract as the research object, two financing methods for downstream enterprises of supply chain are put forwardexternal financing for supply chain and internal financing for supply chain based on the responsive supply chain formed by a single supplier and a single retailer. By applying the financing methods for the responsive supply chain under the capital constraint and through theoretical evidence, it is concluded that internal financing can deduct the financing cost as well as to stimulate the retailers to order more products and can finally reach the best performance of the supply chain under the condition that the supplier has a good credit. References | Related Articles | Metrics

An Analysis of Decisions of Green Closedloop Supply Chain in Different Market Structures LIANG Xi1, MA Chunmei2 2016, 19 (1):  135-141.  Abstract ( 874 )   Save In order to analyse the impacts of different market structures on decisions and performances of green closedloop supply chain members, by introducing the parameter of environmental conservation, Stackelberg Game theory is adopted to compare the decisions and benefits of channel members, and the total benefits of the whole supply chain in three different market structures. The results show that the unit wholesale price and retail price, and the benefit of manufacturer are highest when manufacturer is market leader. The return rate and unit profit of marketing, and retailer′s benefit are highest when retailer is leader. The environmental conservation level and total profit of the supply chain are highest under the Vertical Nash structure. Theoretically, the Vertical Nash structure is the best, but retailer dominating the market is a better choice in the actual situation. References | Related Articles | Metrics

Decisionmaking of RFID Technology on Fresh and Live Agricultural Products with Stochastic Demand MA Yunfeng, HUANG Yaoyu, ZHANG Ruijun 2016, 19 (1):  142-147.  Abstract ( 801 )   Save A study is conducted into a singleperiod twolevel fresh and live agricultural product (FLAP) supply chain consisting of a manufacturer and a retailer. The positive effects of RFID on FLAP wastage from quantity and quality are considered; the impacts of cost of RFID tag on the profits of the upstream company and the downstream company along the supply chain with stochastic customer demand are discussed; the optimal expected profits and the order quantity, respectively of the companies with and without RFID technology in the centralized supply chain model as well as in the decentralized supply chain model are analyzed and the critical value of RFID technology in the two models obtained. The conclusion shows that the critical values of RFID technology of companies are the same in both the centralized decentralized supply chain and that the more significant effect the RFID technology has on FLAP circulation wastage from quantity and quality, the more willing the company will be in using the technology. References | Related Articles | Metrics

A Study of Manufacturing Enterprise Strategic Objectives Oriented Lean Evaluation LIN Yu, PEI Zhengzhao, ZHANG Zongda 2016, 19 (1):  148-155.  Abstract ( 862 )   Save  The incapability of lean performance to reflect strategic indicator in manufacturing enterprises is under study. The mapping rules between enterprise strategic objectives and lean level indicators are built. A network model of the lean level index system is established by using the interpretation structure model method. This model is evaluated by using fuzzy analytic network process (FANP) and grey correlation degree (GCD). The translation between enterprise objectives and key lean indexes is proved by the case study. The maximum deviation of evaluation outcome is less than 5 percent compared with the enterprise objectives evaluation, which proves the feasibility and effectiveness of evaluation model and mapping rules. References | Related Articles | Metrics

A Study of the Efficiency of Major Inland Ports in the Yangtze River System Based on the Perspective of the Technology Gap ZHANG Qiaoli, FAN Yuanwei 2016, 19 (1):  156-162.  Abstract ( 861 )   Save  The evaluation of ports in the Yangtze River System is important to scientifically reflect the status quo of port efficiency, which contributes to further achieving the port efficient operation and to constructing the Yangtze River Economic Zones. The present researches about port efficiency neglected the technology gap of the ports. In order to make up this shortcoming, the metafrontier efficiency, group efficiency and metatechnology ratio  (MTR) of 21 major inland ports in the main stems of the Yangtze River system during 2010～2012 are analyzed using Data Envelopment Analysis (DEA) and MetaFrontier production function. The empirical analysis result shows that with the maximum mean value of metafrontier efficiency being just 0.27, the efficiency of major inland ports in the Yangtze River System is at a low level, and the efficiency of each group still has a very big promotion space; that with the values of average group efficiency being 0.58, 0.67 and 0.27, technological level varies in each group and is affected by the development of economy and geographic locations; that while MTR of Group Three is 1, it is up to the potentially best technology level but inefficiency of management is universal, and technology level and management efficiency of both Groups One and Two need to be enhanced, but the first thing for both is to continue to promote technology level. Furthermore, the Data Envelopment Analysis projection shows that the phenomenon of input congestion and output deficiency is serious in the inland ports of the Yangtze River System. Finally, some measures are put forward to improve the efficiency of inland ports in the Yangtze River System. References | Related Articles | Metrics