【摘要】：起重機(jī)金屬結(jié)構(gòu)動(dòng)態(tài)剛度的問(wèn)題越來(lái)越受到關(guān)注。動(dòng)態(tài)剛度的合理與否影響到了起重機(jī)的使用性能和其金屬結(jié)構(gòu)的使用壽命，但這種影響又不像強(qiáng)度和靜態(tài)剛度那樣直接明了。因此，對(duì)起重機(jī)的動(dòng)態(tài)剛度進(jìn)行深入的研究是目前業(yè)界的一個(gè)重要課題。研究動(dòng)態(tài)剛度首先需要全面了解它，本文通過(guò)對(duì)目前起重機(jī)動(dòng)態(tài)剛度研究發(fā)展歷程的探索，總結(jié)闡述了其研究現(xiàn)狀，并提出了新的研究方向和問(wèn)題。 岸邊集裝箱橋式起重機(jī)的應(yīng)用范圍越來(lái)越大，這得益于集裝箱運(yùn)輸方式的快速發(fā)展。與此同時(shí)，高速發(fā)展的遠(yuǎn)洋貿(mào)易促使著港口吞吐量的快速增長(zhǎng)，也相應(yīng)要求岸邊集裝箱橋式起重機(jī)裝卸效率的不斷提高。為了滿足這一條件，岸邊集裝箱橋式起重機(jī)的金屬結(jié)構(gòu)不斷加高變大，其金屬結(jié)構(gòu)動(dòng)態(tài)剛度的問(wèn)題也越來(lái)越凸顯。相較于普通橋式起重機(jī)，岸邊集裝箱橋式起重機(jī)的結(jié)構(gòu)更加復(fù)雜，這也給其動(dòng)態(tài)剛度的研究帶來(lái)了困難。 本文通過(guò)現(xiàn)場(chǎng)檢測(cè)和有限元模型試驗(yàn)相結(jié)合的方法，以一臺(tái)實(shí)際生產(chǎn)使用中的岸邊集裝箱橋式起重機(jī)為具體研究對(duì)象，主要應(yīng)用ANSYS有限元軟件完成了起重機(jī)動(dòng)態(tài)剛度的研究。ANSYS有限元軟件是被廣泛利用的有限元分析軟件。在本文中主要利用了ANSYS有限元分析軟件的模態(tài)分析功能完成了岸邊集裝箱橋式起重機(jī)固有頻率的求解，同時(shí)還利用有限元模型結(jié)構(gòu)形式的改變探索了動(dòng)態(tài)剛度的主要影響因素。
[Abstract]:More and more attention is paid to the dynamic stiffness of crane metal structures. Whether the dynamic stiffness is reasonable or not affects the service performance of crane and the service life of its metal structure, but this influence is not as clear as the strength and static stiffness. Therefore, it is an important subject to study the dynamic stiffness of crane. In order to study dynamic stiffness, it is necessary to understand it comprehensively. In this paper, the current situation of research on dynamic stiffness of cranes is summarized, and some new research directions and problems are put forward through the exploration of the development history of the research on dynamic stiffness of cranes at present. The application of quayside container bridge crane is more and more extensive, which benefits from the rapid development of container transportation mode. At the same time, the rapid development of ocean trade promotes the rapid growth of port throughput, and also requires the continuous improvement of loading and unloading efficiency of quayside container crane. In order to meet this condition, the metal structure of the quayside container crane becomes bigger and higher, and the dynamic stiffness of the metal structure becomes more and more prominent. Compared with ordinary bridge cranes, the structure of quayside container crane is more complex, which brings difficulties to the study of dynamic stiffness. In this paper, a quayside container bridge crane, which is used in actual production, is taken as the research object through the combination of field test and finite element model test. The dynamic stiffness of crane is studied by using ANSYS finite element software. ANSYS finite element software is a widely used finite element analysis software. In this paper, the modal analysis function of ANSYS finite element analysis software is used to solve the natural frequency of quayside container bridge crane. At the same time, the main influencing factors of dynamic stiffness are explored by changing the structure form of finite element model.
【學(xué)位授予單位】：武漢理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：U653.921

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本文編號(hào)：2203572