本文選題：月壤剖面 + 潛入式探測��； 參考：《哈爾濱工業(yè)大學(xué)》2014年碩士論文

【摘要】：本課題來源于我國載人航天預(yù)先研究項(xiàng)目“月面人機(jī)聯(lián)合探測方案研究”。項(xiàng)目要求能夠在月面預(yù)定深度處針對月壤剖面化學(xué)成分、機(jī)械力學(xué)特性、溫度場分布等科學(xué)目標(biāo)長期地實(shí)施探測任務(wù)。針對該探測任務(wù)，，在調(diào)研國內(nèi)外地外天體探測相關(guān)資料的基礎(chǔ)上，提出了蠕動(dòng)掘進(jìn)潛入式探測系統(tǒng)方案。探測系統(tǒng)由蠕動(dòng)掘進(jìn)式潛入器本體和月表設(shè)備組成。在月表設(shè)備的輔助下，蠕動(dòng)掘進(jìn)式潛入器利用蠕動(dòng)運(yùn)動(dòng)的原理對月壤實(shí)施下潛。潛入到預(yù)定深度后，利用內(nèi)置的探測儀器對科學(xué)目標(biāo)進(jìn)行探測。本課題重點(diǎn)對蠕動(dòng)掘進(jìn)式潛入器潛入特性開展了研究。 建立了蠕動(dòng)掘進(jìn)式潛入器運(yùn)動(dòng)模型。利用土力學(xué)中地基沉陷的理論，分析獲得了負(fù)載與月壤沉陷量的關(guān)系。將月壤沉陷量帶入運(yùn)動(dòng)模型中，考慮蠕動(dòng)掘進(jìn)式潛入器的構(gòu)型約束條件，計(jì)算獲得了蠕動(dòng)掘進(jìn)式潛入器極限潛入深度。以極限潛入深度為指標(biāo)，評估了蠕動(dòng)掘進(jìn)式潛入器的潛入能力。 利用摩爾庫倫破壞準(zhǔn)則、朗肯被動(dòng)土壓力理論，建立了掘進(jìn)頭切削原生月壤的負(fù)載模型。參考螺旋輸送及螺旋擠壓理論，建立了排壤螺旋輸送月壤負(fù)載模型。掘進(jìn)頭切削、螺旋排壤負(fù)載模型分別為掘進(jìn)頭、排壤螺旋的結(jié)構(gòu)設(shè)計(jì)以及動(dòng)力參數(shù)匹配提供理論基礎(chǔ)。利用離散元仿真手段，分析了月壤顆粒在緩存區(qū)的填充特性。以填充特性為基礎(chǔ)，建立了緩存區(qū)月壤堆積負(fù)載模型，此模型可指導(dǎo)緩存區(qū)結(jié)構(gòu)設(shè)計(jì)以及蠕動(dòng)掘進(jìn)式潛入器蠕動(dòng)行程的選擇。 研制了蠕動(dòng)掘進(jìn)式潛入器試驗(yàn)樣機(jī)，開發(fā)了蠕動(dòng)掘進(jìn)式潛入器潛入特性試驗(yàn)系統(tǒng)。開展了掘進(jìn)頭切削負(fù)載特性試驗(yàn)、排壤螺旋輸土負(fù)載特性試驗(yàn)，試驗(yàn)結(jié)果驗(yàn)證了掘進(jìn)頭切削負(fù)載、排壤螺旋輸土負(fù)載理論模型的正確性；開展了緩存區(qū)填充及負(fù)載特性試驗(yàn)，測量了緩存區(qū)月壤堆積對主掘進(jìn)單元產(chǎn)生的附加阻力矩，利用附加阻力矩分析了緩存區(qū)負(fù)載特性；此外，還開展了定姿單元的定姿能力測試試驗(yàn)，獲得了定姿單元的定位能力。
[Abstract]:This topic comes from our country manned spaceflight advance research project "lunar plane man-machine joint exploration program research". The project requires that a long-term exploration mission be carried out against the scientific objectives of the lunar soil profile, such as chemical composition, mechanical properties, temperature field distribution, and so on, at a predetermined depth on the lunar surface. On the basis of investigating the relative data of the extraneous objects at home and abroad, the scheme of creep tunneling submersible detection system is put forward. The detection system is composed of creep excavator body and monthly surface equipment. With the aid of lunar surface equipment, the peristaltic tunneling device is used to submerge the lunar soil by the principle of peristaltic motion. After diving to a predetermined depth, use the built-in detector to detect scientific targets. In this paper, the characteristics of creep tunneling submersible are studied, and the motion model of creep submersible is established. Based on the theory of foundation subsidence in soil mechanics, the relationship between the load and the amount of lunar soil subsidence is obtained. Taking the lunar soil subsidence into the motion model and considering the configuration constraint conditions of the creep diver, the limit depth of creep diver is calculated. Based on the limit depth of penetration, the penetration capacity of peristaltic excavator is evaluated. Based on the Moore Coulomb failure criterion and Rankine's theory of passive earth pressure, a load model for cutting primary lunar soil at the heading head is established. According to the theory of spiral transport and screw extrusion, the load model of lunar soil was established. The cutting model and the load model provide the theoretical basis for the structural design and dynamic parameter matching of the heading head and the soil drainage screw respectively. The filling characteristics of lunar soil particles in buffer region were analyzed by discrete element simulation. Based on the filling characteristics, a lunar soil accumulation load model in the buffer area is established, which can guide the design of the cache structure and the selection of creep stroke of the creep tunneling diver. A prototype of the creep tunneling submersible is developed. A creep tunneling submersible characteristic test system is developed. The cutting load characteristic test of heading head and the load characteristic test of drainage soil spiral transport are carried out. The experimental results verify the correctness of the theoretical model of cutting load and soil transport load of excavating head, the filling of buffer area and the load characteristic test are carried out. The additional resistance moment of lunar soil accumulation to the main heading unit in the buffer area is measured, and the load characteristics of the buffer area are analyzed by using the additional resistance moment. In addition, the attitude determination ability test of the attitude determination unit is carried out, and the positioning ability of the attitude determination unit is obtained.
【學(xué)位授予單位】：哈爾濱工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：P184.58

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本文編號：1985112