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Performance evaluation from stochastic statecharts representation of flexible reactive systems:a simulation approach

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Journal of Systems Engineering and Electronics 2014年第1期25卷 150-157页

作者： Junqiao Li Jun Tang Shuang Wan Wenbo Zhou Jianfeng Xu Department of Electronic Engineering Tsinghua University Key Lab of Underwater Acoustic Countermeasure China Electronic Science Research Institute

This paper focuses on the performance analysis of flexible reactive systems. The performance analysis consists of two phases： first system modeling, second performance evalua-tion. The paper models the flexible reactive system by the stochas-tic statecharts method, and uses the simulation method to evalu-ate the performance. To make use of the feature of event-triggered state transitions in the statecharts, a new method of simulation is proposed based on the techniques of the discrete-event system simulation. The new method solves the problem of computer imple-mentation of stochastic events, probabilistic transition, concurrent states, paral el actions, and broadcast communication mechanism in the stochastic statecharts. An example of a flexible manufactur-ing system is presented. The simulation result of the example is consistent with the analytical result, which shows the feasibility of the proposed new simulation method.

关键词： performance analysis stochastic statecharts simulation approach flexible reactive systems.

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A simulation approach to the Stable Marriages Problem

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Systems Science and Systems Engineering 1999年第3期9卷 340-349页

作者： LIN Jian The Management School, Beijing University of Aeronautics & Astronautics Beijing 100083, China

The stable marriage problem stands for a class of assignment problems and has been attracting high attention from operational research community. Various versions of the problem and corresponding algorithms have been published. This paper introduces the characteristics of GPMS in object\|oriented simulation modelling through constructing a simulation model of the problem.

关键词： stable marriage problem simulation approach GPMS

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Numerical simulation of Debris Flow Runout Using Ramms:A Case Study of Luzhuang Gully in China

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Computer Modeling in Engineering & Sciences 2019年第12期121卷 981-1009页

作者： Jianjun Gan Y.X.Zhang Jiangxi Engineering Research Center of Water Engineering Safety and Resources Efficient Utilization Nanchang Institute of TechnologyNanchangChina School of Computing Engineering and MathematicsWestern Sydney UniversityNSW2751Australia

This study proposes a comprehensive method,which consists of field investigation,flume test and numerical simulation,to predict the velocity and sediment thickness of debris *** velocity and sediment thickness of the debris flow in mountainous areas can provide critical data to evaluate the geohazard,which will in turn help to understand the debris *** flume test of this debris prototype can provide friction coefficient and viscosity coefficient which are important for numerical simulation of debris *** relation between the key parameters in the numerical modelling using the Voellmy model and debris-flow rheology is *** simulation of a debris flow that occurred in Luzhuang gully,it is observed that the debris flow runout determined by the Voellmy model was well consistent with that obtained from field investigation and flume test,demonstrating the effectiveness of this *** relationship between the Voellmy model and debris flow runout is also proposed.

关键词： simulation approach debris flow flume test Voellmy model Luzhaung gully

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