According to the purpose of system analysis, the concept of system simulation is to establish a simulation model that can describe the system structure
According to the purpose of system analysis, the concept of system simulation is to establish a simulation model that can describe the system structure or behavior process and has a certain logical relationship or quantitative relationship on the basis of analyzing the nature and relationship of system elements, and then conduct experiments or quantitative analysis to obtain all kinds of information needed for correct decision.
Computer experiments are often used to study simulation models.
Simulation is also used for scientific modeling of natural systems or man-made systems to gain in-depth understanding.
Simulation can be used to show the final result of optional conditions or action processes.
Simulation can also be used in situations that the real system can't do, because it is accessible, too dangerous, and the consequences are unacceptable, or it is designed but not realized, or it is not realized at all.
The main task of simulation is to obtain effective information sources related to the selected key characteristics and behaviors, use simplified approximations or assumptions, and ensure the fidelity and effectiveness of simulation results.
The process and protocol of model verification and confirmation is the focus of academic research, improvement, research and development of simulation technology, especially computer simulation.
Extended data
Simulation software is divided into three categories: simulation language, simulation package and simulation software system.
Simulation language is the most widely used simulation software.
Simulation package is a program system established for special application fields of simulation.
Software designers design common program segments into general subroutine modules, and design a main program module to call subroutine modules.
Simulation researchers can avoid heavy programming work by using this software package.
The simulation package does not have the function ① of the simulation software, but at least it has any of the functions ②, ③ and ④.
The simulation software system takes the database as the core, and organically unifies all the functions of the simulation software to form a perfect system.
It consists of modeling software, simulation running software (language), output result analysis report software and database management system.
Class I scientific calculation, research on dynamic characteristics modeling of complex systems, process simulation training, system optimization design and debugging, fault diagnosis and expert system, etc. To provide a general, integrated and full-process development and operation support platform based on microcomputer environment.
The software adopts dynamic memory machine code generation technology, distributed real-time database technology and object-oriented graphical modeling method, which is at the leading level in the domestic simulation field.
It is mainly used in energy, electric power, chemical industry, aerospace, national defense and military, economy and other research fields, and can be used in scientific research institutes and practical engineering projects.