Key Engineering Materials Vols. 467-469

Abstract: In order to study the aircraft landing on the deck, the landing(on or off center) dynamics model of airplane on deck is built.In this model,the interactions of the aircraft landing attitude , the arresting force acting on the aircraft are considered,and the influence of dynamic deck is introduced into the model .The deck coordinate system is put forward to solve the complex simulation problem..At last,by simulation,it is demonstrated that the model can be applied to the aircraft landing attitude,it is also proved that the model is comprehensive and suitable for any abnormal landing situation.

Abstract: The influence of strain rate on mechanical properties of Ni-Ti SMA wires was investigated by a series of uniaxial loading tests. The influence of strain rate on critical stress was discussed. During the transformation process, the slop of the stress-strain curves was increasing with the increase of strain rate. A new equation was developed to describe the change of residual train based on the test results.

Abstract: The paper advances a new atomization mechanism combining the centrifugal, the oscillating and the impact breakage atomization as a trinity, breaking through the traditionally single atomization model. The atomization mechanism raised here makes full use of the comprehensive effects of the centrifugal atomization, the oscillating atomization and the impact breakage atomization, synthesizing the superiorities of the three as an organic and powerfully efficient whole, and making their mutual reactions stronger step by step. Among the three, the impact breakage atomization is a new auxiliary mechanism, which can considerably improve the droplet’s atomizing process after the centrifugal and the oscillating atomization, producing much better an atomizing result. It is very convenient, simple and direct to fulfill “the-three-in-one”. This atomization mechanism not only can achieve the goal of even atomization and much tinier droplets, but can be energy-efficient with low cost and less labor intensity as well. Therefore it is a highly practical and useful method.

Abstract: The cotton fiber winding has always been a problem for a picking cotton machine to conquer. This design theoretically pointed out the reasons, at the same time around launched a mechanical cotton-pickers laptop without transmission mechanism, but with a flexible helicopter. This machine is made of cotton picking a direct drive of micro-motors to rotate, the protection cover to picking cotton, and gear transmission by the wind, thus instantly complete cotton flower of picking cotton, improve efficiency, but also greatly reduce the labor intensity of cotton.

Abstract: This paper selects YMK-DEA and C2GS2-ISS models for the evaluation of performance of complex information systems. Referring the balanced scorecard, evaluation indexes for IS performance are presented from four perspectives, including finance, customer, internal processes and learning and growth. Taking the information systems from 30 steel sale enterprises as examples, this paper uses YMK-DEA and C2GS2-ISS models to evaluate IS performance from the angles of both technical efficiency and scale efficiency, and compares the results with those from C2R and C2GS2 models. Finally, some suggestions for IS improvement are given.

Abstract: Aiming at shortcomings in global searching capacity and diversity of Pareto set existing in the traditional MOPSO and in order to enhance the diversity of pareto solutions, quasi-pareto solutions are constructed by sub-ant-colony algorithm which adopts its own and other sub-ant-colony heuristic information and quasi-pareto solutions obtained by every ant are used for control judegement. A crowding distance sorting based multi-objective particle swarm optimization algorithm is proposed. The constructed farther-group ants with the quasi-pareto solutions which act as space nodes constitute traveling salesman problem, hence, leading to the enhancement of the uniform distribution of pareto solutions. With the elitism strategy, the evolution of the external population is achieved based on individuals’ crowding distance sorting by descending order, to delete the redundant individuals in the crowding area. The update of the global optimum is performed by selecting an individual with a relatively bigger crowding distance, to lead the particles to evolve to the disperse region. Effectiveness of the algorithm with two and three objectives is proved by the optimization of three standard test problems. Comparison results illustrate that it outperformed NSGA-II and SPEA2 in the convergence and diversity characteristics of pareto optimal front.

Abstract: In the multi-agent supply chain of manufacturing enterprise, there is the problem that purchasing agent need negotiate with supplier agent about price. Based on analyzing the multi-agent collaborative framework, this paper presents a price-negotiating model, and discusses the negotiating tactics and steps between purchasing agent and supplies agent. And then an example is discussed for validating the negotiating model. This model is useful to optimize the supply chain management of manufacturing enterprise. Manufacturing enterprise and strategic partnerships may share profit and achieve joint gains based on this model.

Abstract: Choosing supplier with better quick response ability becomes more and more important. In this paper, the criterion of evaluating supplier is put forward and a method of evaluating supplier is introduced. To improve the efficiency of selecting supplier, a multi-agent system of supplier selection based on evaluating supplier is developed. Recurring to the supplier’s related data collected by data-mining agent from external web-server, the weights of criteria can be confirmed. And using the system, the supplier with better QRA can be selected based on the measuring results.

Abstract: The intelligent lighting control system is one of typical applications of the Internet of things. The method of intelligent lighting control system based on industrial wireless technology is proposed in the paper. It used proposed three-point-control technology, and adjusting the brightness of lamps, turn on/off the lamps and a part of fault detection can be realized. At the same time, it can greatly reduce the cost of system. It will be useful to engineer and researchers.

Abstract: Located in the upper stream of the Hanjiang River, the Ankang Reservoir is a large hydro-junction mainly for electric power generation as well as for flood prevention and shipping. Rainstorms in the Hanjiang River in summer have high occurrence with concentrated floods characterized by sudden surge and sudden fall. Considering staggering the Hanjiang River and the Yuehe River flood peaks, on the premise of ensuring the dam safety and meeting the flood prevention requirements of Ankang Town, this Thesis establishes the mathematical model for the Ankang Reservoir large flood multi-objective optimal deployment, adopts the progressive optimality algorithm (POA) to solve the model to work out the optimal control with the inconsistent objectives of flood prevention and power generation during large flood and gives examples. The result shows that the mathematical model is workable and practicable and the solution methods are rapid and accurate.