發(fā)布時(shí)間：2019-05-23 19:52

【摘要】：門式起重機(jī)械作為一種大型、復(fù)雜的機(jī)械系統(tǒng)，在運(yùn)行過程中主梁、部件之間的相互作用可能會(huì)造成主梁下?lián)�、部件�?yán)重?fù)p壞、使用壽命縮短、甚至?xí)斐扇松韨黾霸O(shè)備事故,給企業(yè)造成嚴(yán)重?fù)p失，，但是目前卻難以對(duì)大噸位門式起重機(jī)的金屬結(jié)構(gòu)進(jìn)行現(xiàn)場(chǎng)滿載檢測(cè)。 本文以MG0318雙主梁門式起重機(jī)為研究對(duì)象，運(yùn)用ADAMS和ANSYS軟件對(duì)其進(jìn)行仿真檢測(cè)分析，探討利用現(xiàn)場(chǎng)小噸位載荷檢測(cè)數(shù)據(jù)對(duì)仿真檢測(cè)數(shù)據(jù)進(jìn)行修正，并在其基礎(chǔ)上對(duì)門式起重機(jī)進(jìn)行仿真滿載檢測(cè)。主要做了如下工作：首先，根據(jù)動(dòng)力學(xué)基本理論建立門式起重機(jī)的動(dòng)力學(xué)模型，利用ADAMS軟件對(duì)門式起重機(jī)進(jìn)行不同工況的接觸力分析及鋼絲繩在聯(lián)合工況下的拉力分析，得到相應(yīng)的接觸力曲線及鋼絲繩的拉力曲線，并對(duì)門式起重機(jī)的大車運(yùn)行機(jī)構(gòu)進(jìn)行碰撞分析，得到大車車輪的抬高曲線；其次，運(yùn)用ANSYS軟件對(duì)門式起重機(jī)樣機(jī)模型進(jìn)行不同工況下的靜力學(xué)檢測(cè)分析，得到相應(yīng)的云圖，并對(duì)有限分析的最大應(yīng)力處進(jìn)行現(xiàn)場(chǎng)應(yīng)力檢測(cè)，利用現(xiàn)場(chǎng)小噸位載荷檢測(cè)的數(shù)據(jù)對(duì)有限元檢測(cè)數(shù)據(jù)進(jìn)行修正，并在其基礎(chǔ)上對(duì)門式起重機(jī)進(jìn)行仿真滿載應(yīng)力檢測(cè)；結(jié)合實(shí)例驗(yàn)證表明：利用現(xiàn)場(chǎng)小噸位載荷檢測(cè)數(shù)據(jù)對(duì)仿真檢測(cè)數(shù)據(jù)進(jìn)行修正，對(duì)門式起重機(jī)進(jìn)行仿真滿載檢測(cè)具有較高的準(zhǔn)確性；最后，對(duì)門式起重機(jī)樣機(jī)模型進(jìn)行模態(tài)和瞬態(tài)分析，得出相應(yīng)的固有頻率和振型、位移時(shí)間歷程曲線。根據(jù)上述研究并結(jié)合實(shí)例驗(yàn)證基于現(xiàn)場(chǎng)小噸位載荷檢測(cè)數(shù)據(jù)仿真檢測(cè)分析的正確性與合理性。為了實(shí)現(xiàn)同類型、不同尺寸參數(shù)的門式起重機(jī)仿真檢測(cè)，采用Visual Basic6.0編程軟件開發(fā)了基于Pro/E、ANSYS、ADAMS的檢測(cè)系統(tǒng)，該系統(tǒng)包括參數(shù)化建模、強(qiáng)度分析、剛度分析、模態(tài)分析、瞬態(tài)分析、滿載預(yù)判等模塊。
[Abstract]:As a large and complex mechanical system, the interaction between the main beam and the components may cause the deflection of the main beam, the serious damage of the components and the shortening of the service life of the main beam. It will even cause personal casualties and equipment accidents, which will cause serious losses to enterprises, but at present, it is difficult to detect the metal structure of large tonnage gantry cranes. In this paper, the MG0318 double main beam gantry crane is taken as the research object, and the simulation detection and analysis are carried out by using ADAMS and ANSYS software, and the correction of the simulation detection data by using the field small tonnage load detection data is discussed. On the basis of it, the full load detection of gantry crane is carried out. The main work is as follows: firstly, according to the basic theory of dynamics, the dynamic model of gantry crane is established, and the contact force analysis of gantry crane under different working conditions and the tension analysis of wire rope under combined working condition are carried out by using ADAMS software. The corresponding contact force curve and the tension curve of the wire rope are obtained, and the collision analysis of the running mechanism of the gantry crane is carried out, and the elevation curve of the wheel of the gantry crane is obtained. Secondly, ANSYS software is used to detect and analyze the statics of the prototype model of gantry crane under different working conditions, and the corresponding cloud picture is obtained, and the field stress detection is carried out at the maximum stress of the finite analysis. The finite element detection data are modified by using the field small tonnage load detection data, and the full load stress detection of gantry crane is carried out on the basis of the finite element detection data. Combined with an example, it is proved that the simulation test data are modified by using the field small tonnage load detection data, and the simulation full load detection of gantry crane has high accuracy. Finally, the modal and transient analysis of the prototype model of gantry crane is carried out, and the corresponding natural frequency, vibration mode and displacement time history curve are obtained. According to the above research and an example, the correctness and rationality of the simulation detection analysis based on the field small tonnage load detection data are verified. In order to realize the simulation and detection of gantry crane with the same type and different size parameters, a detection system based on Pro/E,ANSYS,ADAMS is developed by using Visual Basic6.0 programming software. The system includes parametric modeling, strength analysis and stiffness analysis. Modal analysis, transient analysis, full load prediction and other modules.
【學(xué)位授予單位】：福建農(nóng)林大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類號(hào)】：TH213.5

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