本文關鍵詞： 智能穿梭車 結構設計 運動學分析 在線診斷　出處：《合肥工業(yè)大學》2017年碩士論文　論文類型：學位論文

【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)展而被廣泛應用起來的一種新型倉儲設施,利用各種立體倉庫設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和存取設備,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,軟硬件技術還不夠成熟,本文正是針對這一現(xiàn)狀,提出能夠快速運輸、存取貨物的穿梭車結構,并進行相應的結構設計、在線診斷和運動學分析。本文首先結合實際應用場合,確定了穿梭車的設計需求,并完成行走機構和伸叉機構的結構設計。文中重點對伸叉機構提出了多種設計方案,對比不同方案的優(yōu)缺點,選定最佳方案完成伸叉機構的設計。在此基礎上,進行相關零部件的尺寸計算、選型、強度和剛度的校核,并運用UG軟件完成車體三維模型的建立。其次,運用了ANSYS Workbench軟件對加速啟動和勻速運行狀態(tài)下的穿梭車三維實體模型進行仿真分析,檢測所設計穿梭車的整機穩(wěn)定性。為提高穿梭車運行的可靠性,本文設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振動傳感標簽對相應軸承的振動信號進行采集,隨后通過KPCA進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.
【學位授予單位】：合肥工業(yè)大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TH692.3

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