岸邊集裝箱起重機(jī)結(jié)構(gòu)設(shè)計專家系統(tǒng)研究
發(fā)布時間：2018-12-21 18:47
【摘要】：岸邊集裝箱橋式起重機(jī)是集裝箱碼頭裝卸集裝箱的前沿設(shè)備。20世紀(jì)八十年代至今集裝箱航運蓬勃發(fā)展，世界經(jīng)濟(jì)和國際貿(mào)易的更加繁榮，集裝箱船舶日益大型化，集裝箱港口吞吐量劇增，這也促進(jìn)了岸橋新的發(fā)展。一方面，岸橋性能呈現(xiàn)了大型化、自動化、高速化、智能化的發(fā)展趨勢，這就對岸橋的技術(shù)性能提出了更高要求；另一方面，市場的需求吸引了更多的企業(yè)參與到岸橋市場的競爭中，這也需要岸橋設(shè)計工作能減少設(shè)計周期速響應(yīng)市場的需求。現(xiàn)行的岸橋結(jié)構(gòu)設(shè)計在標(biāo)準(zhǔn)設(shè)計知識的基礎(chǔ)上往往是借鑒以往的設(shè)計實例和專家的經(jīng)驗知識，按照“設(shè)計—驗算—再設(shè)計”的方式完成方案，過程繁雜且需要做大量的重復(fù)性工作。面對岸橋的發(fā)展趨勢和市場競爭，如何提高岸橋結(jié)構(gòu)設(shè)計的設(shè)計效率、減少設(shè)計者工作量、快速響應(yīng)市場需求已經(jīng)是一個亟待解決的問題了。專家系統(tǒng)是人工智能發(fā)展的高級形式，系統(tǒng)應(yīng)用人工智能技術(shù)和計算機(jī)技術(shù)，，通過將某個領(lǐng)域大量的專門知識與經(jīng)驗整合在程序系統(tǒng)中，進(jìn)行推理和判斷，模擬人類專家的決策過程，以便解決那些需要人類專家處理的復(fù)雜問題。 本文總結(jié)了岸橋結(jié)構(gòu)設(shè)計的一般性知識，通過對岸橋結(jié)構(gòu)設(shè)計領(lǐng)域?qū)＜业纳钊胱稍兪占舜罅堪稑蚪Y(jié)構(gòu)設(shè)計的專家經(jīng)驗，整理一定數(shù)量的岸橋結(jié)構(gòu)設(shè)計實例，以此作為構(gòu)建岸橋結(jié)構(gòu)設(shè)計專家系統(tǒng)的基礎(chǔ)。通過對比各種知識表達(dá)的優(yōu)劣，針對岸橋結(jié)構(gòu)設(shè)計的特點，以面向?qū)ο缶幊陶Z言和SQL結(jié)構(gòu)化查詢語言為編程工具，創(chuàng)造了以面向?qū)ο鬄榛A(chǔ)結(jié)合了框架表示、產(chǎn)生式規(guī)則表示的綜合知識表達(dá)方式，構(gòu)建了包涵了岸橋結(jié)構(gòu)設(shè)計規(guī)則和岸橋設(shè)計實例的岸橋結(jié)構(gòu)設(shè)計專家系統(tǒng)綜合知識庫。研究了岸橋結(jié)構(gòu)設(shè)計綜合表達(dá)方式下的推理機(jī)制，根據(jù)岸橋結(jié)構(gòu)設(shè)計特點選取了合適的沖突消解策略。文中還運用層次分析法，通過專家調(diào)查法，并應(yīng)用yaahp層次分析法軟件，確定了在應(yīng)用實例數(shù)據(jù)庫過程中對岸橋結(jié)構(gòu)設(shè)計各評價指標(biāo)和評價指標(biāo)的權(quán)重。最后，為更加直觀的展現(xiàn)設(shè)計方案和便于系統(tǒng)的進(jìn)一步研究，系統(tǒng)使用有限元分析軟件ANSYS中APDL參數(shù)化語言建立了岸橋結(jié)構(gòu)設(shè)計專家系統(tǒng)的參數(shù)化建模模塊，并最終應(yīng)用VB6.0將各功能模塊封裝，初步實現(xiàn)了岸橋結(jié)構(gòu)設(shè)計專家系統(tǒng)的各功能。
[Abstract]:Quayside container crane is the frontier equipment for container terminal loading and unloading. Since 1980s, container shipping has developed vigorously, the world economy and international trade has become more prosperous, and container ships are becoming larger and larger. Container port throughput increased dramatically, which also promoted the new development of shore bridge. On the one hand, the performance of the quayside bridge presents a trend of large-scale, automation, high speed and intelligence, which puts forward higher requirements for the technical performance of the quayside bridge. On the other hand, the demand of the market attracts more enterprises to participate in the competition of the quayside bridge market, which also requires that the design work of the quayside bridge can reduce the speed of the design cycle and respond to the demand of the market. On the basis of the standard design knowledge, the current quayside bridge structure design often uses the past design examples and experts' experience knowledge for reference, and completes the project according to the way of "design-check computing-redesign". The process is complex and requires a lot of repetitive work. Facing the development trend and market competition of the quayside bridge, how to improve the design efficiency of the quayside bridge structure design, reduce the designer's workload, and respond to the market demand quickly has become an urgent problem to be solved. Expert system is the advanced form of artificial intelligence development. The system applies artificial intelligence technology and computer technology, by integrating a large amount of expertise and experience in a certain field in a program system, the system makes reasoning and judgment. To simulate the decision-making process of human experts in order to solve complex problems that need to be dealt with by human experts. This paper summarizes the general knowledge of the quayside bridge structure design, collects a large number of expert experience in the quayside bridge structure design by consulting the experts in the field of the quayside bridge structure design, and arranges a certain number of examples of the quayside bridge structure design. This is the foundation of the expert system for the design of the quayside bridge structure. By comparing the advantages and disadvantages of various knowledge expressions, aiming at the characteristics of the design of the quayside bridge structure, the object-oriented programming language and the SQL structured query language are used as programming tools, and the framework representation is created based on the object-oriented approach. The synthetic knowledge expression method of production rule representation is used to construct the comprehensive knowledge base of the quayside bridge structure design expert system which includes the design rules of the quayside bridge structure and the examples of the quayside bridge design. In this paper, the reasoning mechanism of the comprehensive expression of the quayside structure design is studied, and the appropriate conflict resolution strategy is selected according to the design characteristics of the quayside bridge structure. The paper also uses the analytic hierarchy process (AHP), the expert investigation method and the yaahp analytic hierarchy process software to determine the weight of each evaluation index and evaluation index for the design of the quayside bridge structure in the course of the application of the database. Finally, in order to show the design scheme more intuitively and facilitate the further research of the system, the parameterized modeling module of the quayside bridge structure design expert system is established by using the APDL parameterized language in the finite element analysis software ANSYS. Finally, the functional modules are encapsulated by VB6.0, and the functions of the quayside bridge structure design expert system are preliminarily realized.
【學(xué)位授予單位】：武漢理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：U653.921
本文編號：2389311
[Abstract]:Quayside container crane is the frontier equipment for container terminal loading and unloading. Since 1980s, container shipping has developed vigorously, the world economy and international trade has become more prosperous, and container ships are becoming larger and larger. Container port throughput increased dramatically, which also promoted the new development of shore bridge. On the one hand, the performance of the quayside bridge presents a trend of large-scale, automation, high speed and intelligence, which puts forward higher requirements for the technical performance of the quayside bridge. On the other hand, the demand of the market attracts more enterprises to participate in the competition of the quayside bridge market, which also requires that the design work of the quayside bridge can reduce the speed of the design cycle and respond to the demand of the market. On the basis of the standard design knowledge, the current quayside bridge structure design often uses the past design examples and experts' experience knowledge for reference, and completes the project according to the way of "design-check computing-redesign". The process is complex and requires a lot of repetitive work. Facing the development trend and market competition of the quayside bridge, how to improve the design efficiency of the quayside bridge structure design, reduce the designer's workload, and respond to the market demand quickly has become an urgent problem to be solved. Expert system is the advanced form of artificial intelligence development. The system applies artificial intelligence technology and computer technology, by integrating a large amount of expertise and experience in a certain field in a program system, the system makes reasoning and judgment. To simulate the decision-making process of human experts in order to solve complex problems that need to be dealt with by human experts. This paper summarizes the general knowledge of the quayside bridge structure design, collects a large number of expert experience in the quayside bridge structure design by consulting the experts in the field of the quayside bridge structure design, and arranges a certain number of examples of the quayside bridge structure design. This is the foundation of the expert system for the design of the quayside bridge structure. By comparing the advantages and disadvantages of various knowledge expressions, aiming at the characteristics of the design of the quayside bridge structure, the object-oriented programming language and the SQL structured query language are used as programming tools, and the framework representation is created based on the object-oriented approach. The synthetic knowledge expression method of production rule representation is used to construct the comprehensive knowledge base of the quayside bridge structure design expert system which includes the design rules of the quayside bridge structure and the examples of the quayside bridge design. In this paper, the reasoning mechanism of the comprehensive expression of the quayside structure design is studied, and the appropriate conflict resolution strategy is selected according to the design characteristics of the quayside bridge structure. The paper also uses the analytic hierarchy process (AHP), the expert investigation method and the yaahp analytic hierarchy process software to determine the weight of each evaluation index and evaluation index for the design of the quayside bridge structure in the course of the application of the database. Finally, in order to show the design scheme more intuitively and facilitate the further research of the system, the parameterized modeling module of the quayside bridge structure design expert system is established by using the APDL parameterized language in the finite element analysis software ANSYS. Finally, the functional modules are encapsulated by VB6.0, and the functions of the quayside bridge structure design expert system are preliminarily realized.
【學(xué)位授予單位】：武漢理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：U653.921
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