本文關(guān)鍵詞： 智能穿梭車 結(jié)構(gòu)設(shè)計 運(yùn)動學(xué)分析 在線診斷　出處：《合肥工業(yè)大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：自動化立體倉庫是近年來隨著現(xiàn)代物流業(yè)的迅猛發(fā)展而被廣泛應(yīng)用起來的一種新型倉儲設(shè)施,利用各種立體倉庫設(shè)備可使倉儲管理實現(xiàn)存取自動化、操作簡便化。穿梭車作為其中最重要的搬運(yùn)和存取設(shè)備,對自動化立體倉庫的出入庫效率有著極其重要的影響。目前,國內(nèi)的智能穿梭車系統(tǒng)起步較晚,車體自動化程度不夠高,軟硬件技術(shù)還不夠成熟,本文正是針對這一現(xiàn)狀,提出能夠快速運(yùn)輸、存取貨物的穿梭車結(jié)構(gòu),并進(jìn)行相應(yīng)的結(jié)構(gòu)設(shè)計、在線診斷和運(yùn)動學(xué)分析。本文首先結(jié)合實際應(yīng)用場合,確定了穿梭車的設(shè)計需求,并完成行走機(jī)構(gòu)和伸叉機(jī)構(gòu)的結(jié)構(gòu)設(shè)計。文中重點對伸叉機(jī)構(gòu)提出了多種設(shè)計方案,對比不同方案的優(yōu)缺點,選定最佳方案完成伸叉機(jī)構(gòu)的設(shè)計。在此基礎(chǔ)上,進(jìn)行相關(guān)零部件的尺寸計算、選型、強(qiáng)度和剛度的校核,并運(yùn)用UG軟件完成車體三維模型的建立。其次,運(yùn)用了ANSYS Workbench軟件對加速啟動和勻速運(yùn)行狀態(tài)下的穿梭車三維實體模型進(jìn)行仿真分析,檢測所設(shè)計穿梭車的整機(jī)穩(wěn)定性。為提高穿梭車運(yùn)行的可靠性,本文設(shè)計了一套穿梭車軸承的在線診斷系統(tǒng)。該系統(tǒng)通過布置在穿梭車上的自取能RFID振動傳感標(biāo)簽對相應(yīng)軸承的振動信號進(jìn)行采集,隨后通過KPCA進(jìn)行降噪以及特征提取,通過LS-SVR模型對處理后的振動信號進(jìn)行分析,從而實現(xiàn)對軸承的在線診斷。
[Abstract]:Automated warehouse is a new storage facility widely used in recent years with the rapid development of modern logistics industry. The use of a variety of three-dimensional warehouse equipment can enable storage management to achieve access automation. As one of the most important handling and access equipment, the shuttle vehicle has an extremely important impact on the efficiency of entering and leaving of the automated warehouse. At present, the intelligent shuttle vehicle system in China started relatively late. The automatization degree of carbody is not high enough, and the technology of hardware and software is not mature enough. In view of this situation, this paper puts forward the shuttle structure which can quickly transport and access goods, and carries on the corresponding structure design. Online diagnosis and kinematics analysis. Firstly, the design requirements of the shuttle vehicle are determined by combining the practical applications. And the structure design of walking mechanism and fork extension mechanism is completed. In this paper, several design schemes are put forward, the advantages and disadvantages of different schemes are compared, and the best scheme is selected to complete the design of fork extension mechanism. The dimensions of the relevant parts, selection, strength and stiffness of the check, and the use of UG software to complete the establishment of the three-dimensional model of the car body. Secondly. ANSYS Workbench software is used to simulate and analyze the 3D solid model of the shuttle vehicle under the condition of accelerating startup and uniform speed running. Check the stability of the designed shuttle vehicle. In order to improve the reliability of the shuttle vehicle operation. In this paper, an on-line diagnosis system of shuttle bearings is designed. The system collects the vibration signals of the corresponding bearings by the RFID vibration sensor label arranged in the shuttle vehicle. Then the noise reduction and feature extraction are carried out by KPCA and the vibration signal after processing is analyzed by LS-SVR model to realize the on-line diagnosis of bearing.
【學(xué)位授予單位】：合肥工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TH692.3

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