Computer Simulation Technology and Application Undergraduate Thesis "Research on Chemical Computer Simulation Technology"
At present, computers have gradually spread to all aspects of life and production, and gradually extended to the chemical industry. The application scope of computer simulation technology in chemical industry is gradually expanding, which promotes the sustainable development of chemical industry to some extent. From the perspective of the application of computer simulation technology in chemical industry, this paper expounds the advantages of computer simulation technology and the necessity of its application, hoping to bring some enlightenment to relevant workers.
Keywords: computer simulation technology; Chemical industry; App application
With the gradual development of science and technology, the facilities and devices in the chemical industry tend to be large and complicated, the automation level is gradually improved, and the operation requirements are more stringent. It is necessary for relevant operators and technicians to gradually improve their business ability and level, not only to ensure the stable, safe and long-term operation of production devices, but also to deal with accidents as soon as possible and avoid losses as much as possible. In the chemical industry, the traditional training system is often in the form of mentoring under the leadership of the master. The ability of relevant staff to deal with faults usually depends on long-term practice accumulation, and qualified masters must pass on what they have mastered to their apprentices intact. This method is relatively real, but limited by the training time and cycle, the training content is not rich, which may increase the independent working hours of the relevant workers to a certain extent, and does not meet the needs of sustainable development of production technology and upgrading of production equipment.
Importance of application of compute simulation technology in 1
Chemical industry often needs to operate some specific engineering equipment and technological processes before it gradually goes deep into the post operators, and then through training, the training work is usually combined with physical wall charts and micro-instruments to impart knowledge, and the teaching process is rather boring. Physical wall charts and teaching AIDS are based on practical and economic factors, and large sizes are not selected, so that all trainers can master the relevant operations and principles in detail. Drawing with 3D technology can make the equipment image more realistic and can be rotated at will, so that trainers can observe the technology and equipment in all directions [1]. Combining Flash technology to make equipment animation can effectively replace the wall chart, and it is more vivid when demonstrating the equipment dynamics, which is helpful for relevant personnel to master the working principle of the equipment and can stimulate the enthusiasm of trainers. Moreover, the equipment is convenient to use and can well meet the use requirements.
Chemical data model base on computer simulation technology
The combination of simulation and computer is to bring the mathematics of chemical process into the computer, and then reflect the technological process through computer simulation. All the principles are based on the transformation of human factors, and the corresponding change values of reaction process and reaction results can be obtained. Generally, it has the following advantages. First, friendly human-computer interaction interface. At present, many design rules of chemical simulation software are based on Microsoft, which enables relevant workers to get started quickly and put themselves into related operations, which makes relevant personnel feel relaxed and convenient, cultivates strong experimental interest and fully mobilizes their work enthusiasm and initiative. Secondly, the response to the performance of engineering equipment is more real [2]. It is very beneficial for operators to fully analyze the reaction process of chemical equipment, establish a matching model and reflect the whole process with experiments. In the following article, we list a model often involved in the chemical industry, hoping to provide reference for relevant operators. Computer simulation system has the characteristics of repeatability, complexity and diversity. As early as 1950s, western countries began to study the dynamic and static characteristics of computer simulation system, and achieved very important influence. The simulation system has also carried out a series of design and research on China Chemical Industry, but it is only limited to static research.
3 research on electronic graphics
Based on the characteristics of computer simulation system, it can be regarded as the essence of nonlinearity. When it is relatively high-order, it is very difficult to study the dynamic performance of chemical system with analytical methods and classical control theory [3]. In this paper, through the calculation of calculus equation in electronic digital computer system, the dynamic performance index system combined with time domain is introduced, and the scheme is finally adjusted. First, the system is stable; Secondly, in numerical calculation, the input value of the system is equal to 0.0123; Third, eliminate interference factors and make chemistry in a normal state; Fourthly, when considering the interference factors, all kinds of interference factors are also regarded as individual. The Euler method in this paper is to calculate the numerical integration of iterative differential equations by predictive correction scheme.
4 improvement scheme of computer simulation system
At present, the chemical simulation system has been widely used, but because the operation of chemical equipment is different from the larger technological process, the current simulation software, simulator and better new employee training can not be satisfied. Therefore, there is still a lot of room for the development of new simulation technology and simulation software in the future [4]. In the future, it should be combined with automatic control theory. Appropriate reference and correction can effectively improve the dynamic performance of the system and make it have high stability and anti-interference ability. It can be connected to the differential and integral negative feedback links of the gas input simulation system, which will greatly improve the dynamic performance eventually. It is equivalent to a series of introductions and links. The calculation results show that the expected effect can be achieved if the corresponding parameters are selected correctly. The structure of differential and integral parts can be regarded as a bridge of natural gas supply. The temperature sensor placed in the same speed pipeline becomes a bridge with two arms, and the expression time constant is very small and the time constant is relatively long. The negative feedback link of the input structure of the simulation system has better dynamic performance. Based on the basic knowledge theory, the influence of the modification link on the control accuracy of the system can be seen through the calculation results. As long as the component parameters are carefully selected, the ideal effect is just around the corner. The most obvious feature of the scheme we advocate is that it is simple and easy to operate, in other words, just connect one of the sensors to the catheter and connect the paper in series and parallel on the same bridge arm. Connected to the input end of the amplifier and the advanced network, combined with the automatic control principle of linear system, and the input resistance and capacitance of the amplifier form an advanced network, which can improve the dynamic quality of the system. The discussion of the above three improvement schemes is based on advanced theory, and it can be seen from the calculation results that these three schemes can basically improve the dynamic quality of the system. The first and second systems can also obviously improve the scheme and improve the anti-interference ability. The improvement projects are all based on the existing technology, and there are no obstacles that are relatively easy to achieve. Of course, it will take a long time for them to get in touch with the actual system.
5 conclusion
At present, computer simulation technology is widely used in production and training. It is necessary to strengthen the development and design of simulation software and simulator, further popularize computer simulation technology, accelerate the deepening of this technology, and improve its application scope and performance. The application of computer simulation technology has promoted the further development of high technology, accelerated the development of science and technology, and provided a broader development space for the chemical industry. In the future sustainable development, the chemical industry will master the application means of computer simulation technology and win more benefits for enterprises.
References:
Yu Xiaohua. Design of automatic logistics system based on computer simulation technology [J]. Automation and instrumentation, 2014 (12): 66-67+70.
[2] Li Jing, Hou,,. On the application of computer simulation technology in China's railway intermodal logistics system [J]. Communication World, 20 14 (22): 3-4.
[3] Du Jing. Research on Computer Simulation Technology in Logistics Automation System [J]. Logistics Engineering and Management, 20 15 (1): 97-98.
[4] Zhao Ran, Zhu Xixi. On the application of simulation technology in computer network teaching in higher vocational colleges [J]. Henan Science and Technology, 20 14 (1): 282.
Computer Simulation Technology and Application Undergraduate Thesis Part II "Computer Simulation Technology and Its Application"
With the development of computer technology and the overall development of system science, combined with the progress of computer technology, control technology, image technology, three-dimensional technology and other technologies, a brand-new science and technology computer simulation technology has been derived. With the continuous development of computer simulation technology in recent years, scientists have combined computer simulation technology into many fields and achieved good results. This paper expounds the general situation of computer simulation technology, and discusses the application of computer simulation technology.
First, the definition of computer simulation technology
Computer simulation technology is a technology that analyzes, designs and simulates the actual environment by studying scientific research engineers and system operation managers, and uses various computer software to simulate scientific experiments. Computer simulation technology is more time-saving and labor-saving than real experiments, which greatly saves the cost of scientific research. Therefore, once the computer simulation technology is introduced, it is greatly loved by people.
Second, the development stages and future development trends of computer simulation technology
According to the development of computer, graphics, modeling, 3D and system technology, computer simulation technology can be divided into the following four stages:
(1) Model testing stage
(2) Digital simulation stage
(3) Image simulation stage
(4) Virtual Reality Technology Stage Computer Simulation Technology In these four stages, the development of each stage has various characteristics and emphases. For example, the model testing stage is mainly based on experimental modeling; Digital simulation is the digital design of computer; Image simulation pays attention to the use of images for expression design; Virtual reality technology adopts feature setting and three-dimensional technology to make the simulation technology more realistic. With the development of society and the progress of computer network technology, combined with people's living needs, computer simulation technology is becoming more and more humanized. In the future, computer simulation technology will develop in several directions: distributed, collaborative, immersive and network-based computer simulation technology. For example, distributed interactive simulation is to use computer network technology to connect scattered simulation experiments in series to build a simulation experiment environment of a website. Collaborative simulation is to establish the synergy of collaborative production. Immersion simulation is to meet the requirements of vertical information sharing and make the data more intuitive and easy to analyze. Network environment simulation is a simulation mode based on virtual network, which is more universal. The development direction of these computer simulation technologies is vertical and horizontal. As for meeting people's multi-computer simulation technology needs in many aspects, it also accelerates the popularization of computer simulation technology.
Third, the steps and technical core of computer simulation
The research and development steps of computer simulation technology can be divided into three steps: the first step is to establish a mathematical model; Second, programming the data model; Third, the simulation experiment. The first step is to establish a mathematical model, that is, scientific research. Through careful analysis in many aspects, a specific marginal data model is established to study the object. The second step of programming the data model is to digitize and program the data model. In the third step of simulation experiment, the built model is simulated to form the simulation model of the system. After these three steps, we can get the desired simulation data. The key technologies of computer simulation include object-oriented simulation, distributed interactive simulation and intelligent simulation. These three key technologies are interrelated vertically and horizontally, and the relationship is progressive step by step. Intelligent simulation will be the future development trend, which can better meet people's needs.
Fourthly, the application of computer simulation technology.
Computer simulation technology has attracted more and more attention from all walks of life because of its superiority and high performance diversity, and has been applied to practical production. Such as aerospace, navigation, enterprise production, geographical exploration, transportation, agriculture, education, military and national defense, as well as various scientific research and design. Computer simulation technology has been applied. According to the function and scope of computer simulation technology, we can divide the application of computer simulation technology into: system research and development and theoretical research and application, product research and development and application, personnel training and application.
(A) system development and theoretical research and application
In the development and research of new projects, it is necessary to analyze all kinds of data, and computer simulation technology can be applied to the research and development of these projects. Through simulation modeling, we can study all systems, make theoretical analysis and collect all kinds of data. For example, the research and application of space technology, mainly the simulation experiments of rockets and spacecraft, and the collection of required data. Military applications, a lot of advanced military equipment, battlefield environment for model experiments. () Product R&D Computer simulation technology is applied to enterprise product production or various industrial R&D and production, such as industrial manufacturing industry simulation. According to the products produced by the enterprise, the product model is established to measure whether the function and appearance of the product meet the requirements. Simulation, medical equipment or simulated medical experiments in the medical field. These skills save research and development costs and manpower and material resources. It can also improve the overall skill level of scientific and technological personnel.
(3) Personnel training and educational application
The application of computer simulation in the fields of training and education can be varied. For example, in the school practice teaching, we can simulate the virtual enterprise internship, enrich the practice teaching content, improve efficiency and save energy. In the simulation experiments such as astronaut training, on the one hand, the safety is guaranteed, and at the same time, the cost is reduced, and the expected effect is achieved. Computer simulation technology is still in further development. In the future, computer simulation technology will be applied to more fields.
Verb (abbreviation of verb) abstract
With the further development of computer technology, network technology, system knowledge science and control technology, new computer simulation technology will advance by leaps and bounds. In addition, computer simulation technology hides great benefits. No matter what industry you are engaged in, computer simulation technology will be industrialized in the future, which will make computer simulation technology more and more widely used in various fields and open a new chapter for human development.
The third part of the graduation thesis of computer simulation technology and application "The application of computer simulation technology in automobile theory teaching"
1 Discussion on teaching methods of the course
Automobile theory is a professional course with many contents, strong theory and comprehensive discipline. It is different from other courses of automobile specialty, and it is difficult for students to master it. According to the teaching content and characteristics of the course, choosing the appropriate teaching method is the key to improve the teaching effect. For basic concepts, working principles, stress analysis charts, graphs, data tables and some conclusive knowledge points, we can display them in multimedia ways such as words, charts and animations, which can not only achieve intuitive and clear results, but also improve teaching efficiency. The content of formula derivation and force analysis should adopt the traditional blackboard writing teaching method. Because the traditional blackboard deduction process is easier to guide students to think logically and abstractly, they will be more impressed with the conclusion. For more complex and abstract teaching contents, computer simulation platform can be used to assist teaching through animation video and on-site model analysis, so as to make it visualized, so as to improve students' perceptual knowledge, avoid teachers' empty statements and students' visualized understanding, and thus improve teaching effect. For automobile performance experiments, especially automobile handling stability and ride comfort experiments, most of them can't be carried out due to the limitations of experimental conditions. Using computer simulation technology, some virtual simulation experiments can be designed and realized, thus making up for the shortage of experimental teaching content. In addition to theoretical teaching and experimental teaching, the course of automobile theory generally includes after-school homework, after-school homework, classroom speech and subsequent course design of automobile theory. Because of the same topic after class, single project task and limited available calculation tools (commonly used Excel or Matlab), it often leads to a large number of plagiarism, which is not conducive to the cultivation of students' ability and fair evaluation. We can consider integrating various computer simulation technologies into project-based practice teaching to deepen students' understanding of theoretical knowledge and stimulate students' interest in learning and research. In the teaching process, we should choose the appropriate teaching methods according to the specific teaching content, combine traditional teaching methods with modern teaching methods, and give full play to their respective advantages in order to obtain better teaching results.
Discussion on the application method of computer simulation technology
In the teaching of automobile theory, the reasonable application of computer simulation technology will bring great help to the teaching of the course and the learning effect of students, to the subsequent course design and graduation design, and to the cultivation of students' engineering software application ability. The following will discuss its application method from the following points:
2. 1 Establish the model base of automobile performance simulation and analysis.
First of all, according to the teaching materials of automobile theory and students' specific understanding, we should reasonably choose the application points, and consider whether computer simulation technology can be used for auxiliary teaching in some important, difficult and difficult places. The case base and model base of automobile performance simulation analysis are established by using computer simulation software. Video and simulation models can be called at any time in the course teaching, and some complex problems such as structural movement, parameter adjustment, performance analysis, curve change and so on can be dynamically simulated and demonstrated in class. In this way, it is more convenient for teachers to explain and provide students with an intuitive and vivid process and conclusion, which is easier for students to understand. At the same time, in the teaching process, showing students the application of computer simulation technology in the automobile field can also stimulate students to use relevant software to learn and apply theoretical knowledge, and lay the foundation for subsequent extracurricular practice, curriculum design, graduation design and other links. Because there may be many application points involved in the course, the workload of model base construction is heavy at the beginning, but it is very necessary and once and for all for the construction of excellent courses in schools and the direct improvement of course teaching effect.
2.2 Advantages of various simulation software in professional teaching
According to the professional advantages of different computer simulation software, it is reasonably applied to the teaching of automobile theory, which makes the analysis of complex problems intuitive and clear, and can stimulate students' interest in learning. Matlab software is a common tool for automobile performance calculation, which has powerful numerical calculation and graphic function, and can conveniently complete various automobile performance calculations. At the same time, the complex process in automobile theory can be simulated, analyzed and solved by using the numerical calculation function of Matlab and Simulink module. The results of these calculations and analysis can be presented to students by visual means provided by Matlab, which is helpful to explain abstract concepts clearly. [4] CRUISE, an automobile performance simulation software, is specially designed for automobile transmission system matching. Modular modeling method divides the whole vehicle into engine, clutch, gearbox, main reducer and other automobile modules, and is equipped with calculation tasks such as cyclic driving condition, climbing performance analysis and steady driving performance analysis, which can conveniently calculate the power and economy of traditional vehicles and new energy vehicles and analyze the parameter matching of power plants. Different from Matlab software, the software is easy to model, and can set different module parameters and calculation tasks in detail and conveniently, which is closer to the actual automobile model and the calculation results are more accurate. The software has unparalleled professionalism and flexibility in the simulation of automobile power transmission system, and has been widely used in the automobile industry at home and abroad. ADAMS is a multi-body dynamics simulation software of mechanical system widely used in automobile industry. Among them, ADAMS/CAR module is a software package for vehicle design, which can quickly establish a high-precision virtual prototype model of the vehicle, and intuitively reproduce the dynamic response of the vehicle under various virtual experimental conditions through high-speed animation, greatly reducing the dependence on the physical prototype. In the teaching of automobile theory, the motion analysis of suspension and steering system can be realized in virtual environment through ADAMS/CAR, and at the same time, simulation experiments related to automobile handling stability and ride comfort can be carried out, which solves the experimental teaching link that cannot be carried out due to objective conditions. In addition, in the research field of automobile simulation technology, there are also engineering software such as ADVISOR, CarSim/TruckSim, which have been widely used by virtue of their own advantages and characteristics. 2.3 The role of computer simulation technology in project-driven practice teaching mode At present, Matlab software is widely used in after-school homework, after-school homework and automobile theory course design in automobile theory teaching. Many performances of automobiles can be calculated and analyzed by Matlab software, but the application of Matlab makes students pay too much attention to formula calculation and programming, which has certain limitations. Moreover, a single task is often accompanied by a lot of plagiarism, which is not conducive to students' independent problem solving and fair evaluation. Applying different computer simulation software to all practical teaching links of automobile theory driven by various projects can solve the above problems. [5] In the process of implementation, it is necessary to build several projects that are suitable for the actual performance of automobiles, and use the same type of simulation software for group learning and guidance, so that students can deepen their understanding of theoretical knowledge and practical application during the process of project learning and completion, and stimulate their ability to actually analyze and solve problems.
Application examples of computer simulation technology
3. 1Matlab software application example
The dynamic performance of an automobile is the most basic and important performance among various performances of an automobile. Among them, when drawing graphs, such as the balance diagram of driving force and driving resistance, the previous teaching method was basically to teach the curve drawing method in class, give the curve of a certain car type that has been drawn in a textbook, and then analyze the changes of driving force in each gear by the curve. According to the engine torque fitting formula, the driving force calculation formula, the driving resistance calculation formula and the vehicle speed calculation formula,
3.2 Cruise Software Application Example
Using the module library of CRUISE software, the simulation models of traditional and new energy vehicle powertrains can be quickly established, and the power and economy of the whole vehicle can be simulated by setting calculation tasks. At the same time, the software itself also provides a variety of car model templates for beginners to learn. Fig. 3 is a simulation model of a conventional rear-wheel drive vehicle (FR) powertrain provided by the software itself. By setting up calculation tasks, you can get a wealth of text and chart analysis files about vehicle power and economy. It provides a basis for matching analysis of engine and vehicle power plant parameters after setting UDC cycle conditions.
3.3ADAMS software application example
In the teaching of automobile theory, ADAMS/CAR can be used to realize the simulation experiment of automobile handling stability and ride comfort in virtual environment, so as to solve the problems caused by the limitation of actual experimental conditions. In ADAMS/CAR, users can create their own models through templates, or call the system or vehicle model in the database for simulation analysis. Taking the single lane experiment of vehicle handling stability as an example, the virtual simulation of vehicle handling stability is carried out. The experimental conditions can be set according to the standard, and the experimental results can be displayed in animation, graphics and other ways through simulation calculation. The simulation platform provided by ADAMS/CAR enables students to conveniently carry out various virtual experiments such as handling stability, braking performance and ride comfort, which makes up for the shortage of experimental teaching content.
4 conclusion
Applying computer simulation technology to automobile theory teaching can obviously improve the teaching quality. Vivid simulation model analysis and demonstration not only facilitate teachers' narration, but also enable students to have a profound understanding of theoretical knowledge, overcome the constraints of objective and practical conditions on theoretical teaching, and cultivate students' interest and application ability in related software learning. Of course, it takes a lot of preparation to make full use of the advantages of various computer simulation engineering software to assist teaching, but considering the improvement of teaching effect and the study of students' theoretical knowledge, it will be very necessary.
Computer simulation technology and application undergraduate thesis recommendation;
1. computer simulation technology model
2. Talking about the model of computer simulation technology.
3. Paper on computer simulation technology
4. University Computer Simulation Technology Papers
5. Freshman computer simulation technology graduation thesis.
6. Freshman Computer Simulation Technology Paper