本文選題：船舶推進(jìn)軸系 + 參數(shù)化��； 參考：《華中科技大學(xué)》2014年碩士論文

【摘要】：船舶推進(jìn)軸系是船舶動力系統(tǒng)中重要的一部分，它位于螺旋槳和主機(jī)減速齒輪箱輸出法蘭之間，其主要功能是將發(fā)動機(jī)發(fā)出的功率傳遞給螺旋槳，而螺旋槳旋轉(zhuǎn)會產(chǎn)生軸向推力，這部分軸向推力會傳遞給推力軸承進(jìn)而傳遞給船體從而推進(jìn)船舶前進(jìn)或后退。推進(jìn)軸系運(yùn)行時會承受螺旋槳水動力、主機(jī)激勵力等多種復(fù)雜載荷，因而不可避免的產(chǎn)生扭轉(zhuǎn)、縱向、回旋振動，軸系振動是影響軸系穩(wěn)定性的一個重要因素，而軸系穩(wěn)定性好壞決定著船舶是否能安全穩(wěn)定運(yùn)行。因此，船舶推進(jìn)軸系研究的理論意義與工程應(yīng)用價值非常明顯。 本文對影響軸系穩(wěn)定性的回旋振動和扭轉(zhuǎn)振動特性進(jìn)行研究，開發(fā)了基于參數(shù)化的船舶軸系回旋振動和軸系穩(wěn)定性的計(jì)算軟件，主要內(nèi)容包括： 在分析推進(jìn)軸系回旋振動和扭轉(zhuǎn)振動原理基礎(chǔ)上，給出了計(jì)算模型和計(jì)算方法，研究并提取了基于參數(shù)化的軸系幾何參數(shù)、材料屬性與載荷等特征參數(shù)，實(shí)現(xiàn)了基于參數(shù)化的軸系快速建模。在此基礎(chǔ)上基于Visual Studio2008平臺C++語言設(shè)計(jì)了軸系穩(wěn)定性計(jì)算軟件，只需輸入軸系特征參數(shù)即可自動完成參數(shù)的傳遞和驅(qū)動，基于所開發(fā)平臺即可實(shí)現(xiàn)對回旋振動的相關(guān)計(jì)算，同時以批處理方式調(diào)用ANSYS軟件在后臺完成扭轉(zhuǎn)振動計(jì)算并可查看、分析結(jié)果。 軸系穩(wěn)定性計(jì)算軟件平臺具有友好的人機(jī)交互界面，，操作簡單方便，實(shí)現(xiàn)了參數(shù)化建模、振動特性的相關(guān)計(jì)算，且大大減少了軸系設(shè)計(jì)時的工作量，具有較高的實(shí)用價值。
[Abstract]:Marine propulsion shafting is an important part of ship power system. It lies between the propeller and the output flange of the main engine deceleration gear box. Its main function is to transfer the power from the engine to the propeller. The propeller rotation produces axial thrust, which is transmitted to the thrust bearing and then to the hull to propel the ship forward or backward. Propulsion shafting will bear many complicated loads, such as propeller hydrodynamic force, main engine excitation force and so on. Thus, torsion, longitudinal vibration, rotary vibration and shafting vibration are important factors that affect the stability of shafting. The stability of shafting determines whether the ship can run safely and stably. Therefore, the theoretical significance and engineering application value of ship propulsion shafting research are very obvious. In this paper, the characteristics of gyratory vibration and torsional vibration affecting the stability of shafting are studied, and the calculation software of the gyro-vibration and shafting stability of ship shafting based on parameterization is developed. The main contents are as follows: on the basis of analyzing the principle of rotary vibration and torsional vibration of propeller shafting, the calculation model and calculation method are given, and the geometric parameters of shaft system based on parameterization are studied and extracted. The fast modeling of shafting based on parameterization is realized by the characteristic parameters such as material properties and loads. On this basis, based on Visual Studio 2008 platform C language, the system stability calculation software is designed. The transmission and drive of shafting parameters can be completed automatically by inputting the characteristic parameters of shafting system. Based on the developed platform, the calculation of cyclotron vibration can be realized. At the same time, the calculation of torsional vibration can be completed by calling ANSYS software in the background by batch processing, and the results can be viewed and analyzed. The software platform of shafting stability calculation has friendly man-machine interface, simple and convenient operation, realizes parameterized modeling and calculation of vibration characteristics, and greatly reduces the workload of shafting design. It is of high practical value.
【學(xué)位授予單位】：華中科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：U664.21

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