海運甲板重大件設備剛性系固方案校核研究
發(fā)布時間:2018-08-14 17:48
【摘要】:近年來,重大件運輸已成為遠洋運輸市場中的重要組成部分。重大件設備通常都具有超高、超長、超重的特點,積載在船舶甲板上,多采用剛性系固方式。目前國內外針對重大件剛性系固校核評判沒有明確的、有效的規(guī)范。由此,重大件設備運輸過程中因重大件設備系固原因引起的事故時有發(fā)生,造成了生命和財產損失。因此,建立為之有效的剛性系固方案校核評判規(guī)范,確保系固方案的安全性,已成為一個重要課題。本文從甲板重大件設備的種類及其剛性系固設備入手,研究重大件所受外力的計算方法,分析基于直接計算法的剛性系固校核方法。結合有限元思想,提出了基于ANSYS的重大件設備剛性系固方案校核方法。本文采用基于ANSYS的重大件剛性系固方案校核方法對某一工程實例剛性系固方案進行校核,分別對裝船機設備、系固設備和局部船體的結構強度進行校核。校核結果顯示:螺旋鋼管和插板的連接處出現了應力集中,應力值接近螺旋鋼管材料的許用應力值,建議在螺旋鋼管和插板的連接處設置應力釋放孔;裝船機設備、系固設備和局部船體的強度均滿足要求。該校核結果表明該剛性系固方案是安全有效的,與使用直接計算校核方法所得結果相同;贏NSYS的重大件剛性系固方案校核方法輸出的應力結果直觀、可靠,能精確地找到系統結構強度的薄弱區(qū)域,由此改良其剛性系固方案,具有實際應用價值。本論文的研究成果對重大件設備剛性系固方案的校核評判具有一定的指導意義,為國內研究重大件海上安全運輸提供了技術支持。
[Abstract]:In recent years, the transportation of major parts has become an important part of ocean transportation market. Heavy equipment is usually super-high, super-long, overweight, stowage on the ship deck, most of the rigid fastening mode. At present, there is no clear and effective criterion for the evaluation of rigid fastening and checking of major parts at home and abroad. As a result, accidents caused by the fastening of major pieces of equipment occur from time to time, resulting in loss of life and property. Therefore, it has become an important subject to establish an effective criterion for the verification and evaluation of rigid fastening schemes and to ensure the safety of the fastening schemes. Starting with the types of deck heavy equipment and its rigid fastening equipment, this paper studies the calculation method of the external force of the heavy parts, and analyzes the method of rigid fastening and checking based on the direct calculation method. Based on the idea of finite element method, a method of checking the rigid fastening scheme of heavy parts equipment based on ANSYS is proposed. In this paper, the method of checking the rigid fastening scheme of major parts based on ANSYS is used to check the rigidity fastening scheme of a certain engineering example, and the structural strength of the loading equipment, the fastening equipment and the partial hull are checked respectively. The checking results show that the stress concentration appears at the joint of spiral steel pipe and socket plate, and the stress value is close to the allowable stress value of spiral steel pipe material. It is suggested that the stress release hole should be set at the joint of spiral steel pipe and socket plate, and the equipment of loading machine should be installed. Both the fastening equipment and the strength of the partial hull meet the requirements. The results show that the rigid fastening scheme is safe and effective, and the results are the same as those obtained by the direct calculation method. The stress output from the checking method of the rigid fastening scheme for major parts based on ANSYS is intuitionistic, reliable, and can accurately find the weak area of the structural strength of the system. Therefore, it is of practical value to improve the rigid fastening scheme of the system. The research results of this paper have a certain guiding significance for the verification and evaluation of the rigid fastening scheme of major parts equipment, and provide technical support for the domestic research on the maritime safety transportation of major parts.
【學位授予單位】:大連海事大學
【學位級別】:碩士
【學位授予年份】:2017
【分類號】:U695.26
本文編號:2183635
[Abstract]:In recent years, the transportation of major parts has become an important part of ocean transportation market. Heavy equipment is usually super-high, super-long, overweight, stowage on the ship deck, most of the rigid fastening mode. At present, there is no clear and effective criterion for the evaluation of rigid fastening and checking of major parts at home and abroad. As a result, accidents caused by the fastening of major pieces of equipment occur from time to time, resulting in loss of life and property. Therefore, it has become an important subject to establish an effective criterion for the verification and evaluation of rigid fastening schemes and to ensure the safety of the fastening schemes. Starting with the types of deck heavy equipment and its rigid fastening equipment, this paper studies the calculation method of the external force of the heavy parts, and analyzes the method of rigid fastening and checking based on the direct calculation method. Based on the idea of finite element method, a method of checking the rigid fastening scheme of heavy parts equipment based on ANSYS is proposed. In this paper, the method of checking the rigid fastening scheme of major parts based on ANSYS is used to check the rigidity fastening scheme of a certain engineering example, and the structural strength of the loading equipment, the fastening equipment and the partial hull are checked respectively. The checking results show that the stress concentration appears at the joint of spiral steel pipe and socket plate, and the stress value is close to the allowable stress value of spiral steel pipe material. It is suggested that the stress release hole should be set at the joint of spiral steel pipe and socket plate, and the equipment of loading machine should be installed. Both the fastening equipment and the strength of the partial hull meet the requirements. The results show that the rigid fastening scheme is safe and effective, and the results are the same as those obtained by the direct calculation method. The stress output from the checking method of the rigid fastening scheme for major parts based on ANSYS is intuitionistic, reliable, and can accurately find the weak area of the structural strength of the system. Therefore, it is of practical value to improve the rigid fastening scheme of the system. The research results of this paper have a certain guiding significance for the verification and evaluation of the rigid fastening scheme of major parts equipment, and provide technical support for the domestic research on the maritime safety transportation of major parts.
【學位授予單位】:大連海事大學
【學位級別】:碩士
【學位授予年份】:2017
【分類號】:U695.26
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