本文關(guān)鍵詞：救助訓(xùn)練模擬艙結(jié)構(gòu)設(shè)計(jì)及動(dòng)力特性分析　出處：《大連海事大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 救援模擬艙 動(dòng)力學(xué)仿真 受力分析 有限元仿真

【摘要】：本文設(shè)計(jì)的救援訓(xùn)練模擬器用于在陸上實(shí)驗(yàn)室中模擬訓(xùn)練救生人員在惡劣海況條件下進(jìn)行的直升機(jī)懸停救助任務(wù)。相對(duì)于實(shí)際訓(xùn)練,它具有安全高效,節(jié)省成本等優(yōu)點(diǎn),必將成為救援訓(xùn)練的重要方式之一。目前,我國(guó)救助訓(xùn)練主要還是在實(shí)際環(huán)境中的訓(xùn)練,為保證安全,還難以開展惡劣海況下的訓(xùn)練,大連海事大學(xué)根據(jù)惡劣海況下直升機(jī)懸停救助的特點(diǎn),提出建立由天車平移系統(tǒng)、電動(dòng)六自由度平臺(tái)、機(jī)艙-絞車、模擬海上救助環(huán)境等構(gòu)成的直升機(jī)懸停救助模擬系統(tǒng),可以代替惡劣海況下直升機(jī)懸停救助的絕大部分任務(wù)。本論文著重針對(duì)直升機(jī)救援訓(xùn)練模擬艙的結(jié)構(gòu)設(shè)計(jì)與動(dòng)力學(xué)分析進(jìn)行研究,根據(jù)總體要求設(shè)計(jì)出模擬艙的結(jié)構(gòu)并進(jìn)行校核,通過(guò)模擬真實(shí)救援動(dòng)作進(jìn)行動(dòng)力學(xué)分析,尋找出極限工況并對(duì)其進(jìn)一步做有限元分析,從而確保模擬艙在運(yùn)動(dòng)中的安全性。首先,現(xiàn)場(chǎng)采集直升機(jī)在救援訓(xùn)練時(shí)的位姿數(shù)據(jù),通過(guò)反解數(shù)據(jù)等方法獲得模擬艙的運(yùn)動(dòng)位移。根據(jù)救生員訓(xùn)練大綱及實(shí)際情況提出了模擬艙結(jié)構(gòu)設(shè)計(jì)的特點(diǎn)與品質(zhì)要求。最終確定了模擬艙結(jié)構(gòu)設(shè)計(jì)的總體要求及參數(shù)。其次,根據(jù)所提出的要求進(jìn)行設(shè)計(jì)。根據(jù)設(shè)計(jì)的總體要求與實(shí)際情況,設(shè)計(jì)了模擬艙骨架及模擬艙地板、蒙皮、連接橫梁、絞車連接臂等附件。在滿載荷的情況下,對(duì)所設(shè)計(jì)的部件進(jìn)行了有限元分析,從而確定了模擬艙結(jié)構(gòu)的材料,保證了艙體的穩(wěn)定性與安全性。最后,進(jìn)行動(dòng)力學(xué)分析及極限工況的有限元分析。建立了動(dòng)力學(xué)仿真模型及有限元仿真模型。通過(guò)輸入直升機(jī)真實(shí)救援時(shí)動(dòng)作位姿數(shù)據(jù),獲得了模擬艙的實(shí)時(shí)受力。在艙體受到最大受力及加速度的情況下,進(jìn)行有限元仿真與分析。分析結(jié)果表明：本文簡(jiǎn)化后建立的模型與實(shí)際結(jié)構(gòu)基本相符,所做的仿真分析真實(shí)的反映了救助直升機(jī)訓(xùn)練模擬艙機(jī)械系統(tǒng)的特性,驗(yàn)證了救助模擬艙滿足靜態(tài)與動(dòng)態(tài)救援訓(xùn)練的強(qiáng)度要求和安全性要求。
[Abstract]:The rescue training simulator designed in this paper is used to simulate the rescue mission of helicopter hovering under the bad sea condition in the land laboratory. Compared with the actual training, it is safe and efficient. Cost saving and other advantages will become one of the important ways of rescue training. At present, rescue training in China is mainly in the actual environment training, in order to ensure safety, it is difficult to carry out training in bad sea conditions. According to the characteristics of helicopter hovering and rescue in bad sea conditions, Dalian Maritime University puts forward the establishment of crane translation system, electric six degrees of freedom platform and cabin winch. The helicopter hovering rescue simulation system which simulates the sea rescue environment and so on. This paper focuses on the structural design and dynamic analysis of helicopter rescue training simulation module. According to the overall requirements, the structure of the simulation module is designed and checked. By simulating the real rescue operation, the dynamic analysis is carried out to find out the limit conditions and do the finite element analysis. In order to ensure the safety of the simulation module in the movement. Firstly, the position and posture data of the helicopter in rescue training are collected on the spot. The movement displacement of the simulated cabin is obtained by inverse solution data. According to the training outline and the actual situation of the lifeguard, the characteristics and quality requirements of the structural design of the simulated cabin are put forward. Finally, the overall requirements of the structural design of the simulated cabin are determined. And parameters. Second. According to the requirements of the design, according to the overall requirements and the actual situation of the design, design the simulated cabin skeleton and the simulated cabin floor, skin, connecting beam, winch connection arm and other accessories. Under the full load condition. The finite element analysis of the designed components is carried out to determine the material of the simulated cabin structure and to ensure the stability and safety of the cabin. Finally. The dynamic analysis and finite element analysis of the limit condition are carried out. The dynamic simulation model and the finite element simulation model are established. In the case of the maximum force and acceleration of the cabin, the finite element simulation and analysis are carried out. The analysis results show that the simplified model is basically consistent with the actual structure. The simulation results reflect the characteristics of the mechanical system of the rescue helicopter training simulation module, and verify that the rescue simulation module meets the strength and safety requirements of the static and dynamic rescue training.
【學(xué)位授予單位】：大連海事大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：U676.8;V216.8

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本文編號(hào)：1417063