本文選題：月球鉆取采樣器 + 動(dòng)力學(xué)��； 參考：《中國(guó)礦業(yè)大學(xué)（北京）》2012年博士論文

【摘要】：月壤鉆取采樣器中,細(xì)長(zhǎng)鉆桿的運(yùn)動(dòng)有回轉(zhuǎn)、軸向沖擊及進(jìn)給。文中分別建立了采樣器中鉆機(jī)回轉(zhuǎn)運(yùn)動(dòng)系統(tǒng)的驅(qū)動(dòng)電機(jī)轉(zhuǎn)子、齒輪傳動(dòng)、鉆桿動(dòng)力學(xué)方程；鉆桿軸向受壓與受扭的耦合動(dòng)力學(xué)方程；采樣器中電機(jī)驅(qū)動(dòng)滾筒,滾筒纏繞鋼絲繩拉動(dòng)鉆機(jī),鉆機(jī)推動(dòng)鉆桿軸向進(jìn)給運(yùn)動(dòng)的系統(tǒng)動(dòng)力學(xué)模型及方程。應(yīng)用Runge-Kutta法和Matlab軟件求解了上述動(dòng)力學(xué)方程,對(duì)鉆桿在不同的復(fù)雜動(dòng)載荷作用下的響應(yīng)和非線性特性進(jìn)行了分析,研究了系統(tǒng)動(dòng)力學(xué)特性及主要參數(shù)對(duì)鉆進(jìn)性能的影響。建立了考慮鉆桿受軸向壓力和與鉆桿軸線傾斜的月球低重力作用下簡(jiǎn)支梁式支承鉆桿的橫向彎曲非線性振動(dòng)方程,采用攝動(dòng)多尺度法得出主共振漸進(jìn)解；分析了幅頻響應(yīng)、運(yùn)動(dòng)穩(wěn)定性、振幅突變性等,并進(jìn)行了幅頻響應(yīng)的試驗(yàn)研究。建立了中間簡(jiǎn)支梁式支承、端部懸臂梁式支承的鉆桿復(fù)雜振型的非線性方程,對(duì)鉆桿振動(dòng)和穩(wěn)定性進(jìn)行了分析。上述研究工作為確保鉆桿鉆進(jìn)過(guò)程中安全、可靠和采樣器的參數(shù)設(shè)計(jì)提供了理論基礎(chǔ)。研制了一種無(wú)人自主鉆取式采樣器樣機(jī),用于對(duì)月球表面下月壤自動(dòng)采樣與收集。在實(shí)驗(yàn)室完成的采樣器功能、性能試驗(yàn)顯示,在取芯、沖擊回轉(zhuǎn)鉆進(jìn)、樣品纏繞整形及回收等關(guān)鍵技術(shù)方面獲得成功,為我國(guó)探月采樣及未來(lái)深空探測(cè)采樣技術(shù)做了基礎(chǔ)性工作。
[Abstract]:In the sampler of lunar soil drilling, the movement of slender drill pipe includes rotation, axial impact and feed. In this paper, the dynamic equations of driving motor rotor, gear drive and drill pipe in the rotary motion system of drilling rig in sampler, coupling dynamic equation of axial compression and torsion of drill pipe, driving drum of motor in sampler, are established respectively. The system dynamic model and equation of roller winding wire rope pulling rig and drilling rig pushing the axial feed motion of drill pipe. The above dynamic equations are solved by using Runge-Kutta method and Matlab software. The response and nonlinear characteristics of drill pipe under different complex dynamic loads are analyzed. The dynamic characteristics of the system and the influence of main parameters on drilling performance are studied. In this paper, the nonlinear vibration equation of lateral bending of simply supported drill pipe is established under the influence of low gravity of the moon under axial pressure and inclined axis of drill pipe. The asymptotic solution of main resonance is obtained by using perturbation multi-scale method, and the amplitude frequency response is analyzed. Motion stability, amplitude mutation and so on, and the experimental study of amplitude frequency response are carried out. The nonlinear equations of complex modes of drill pipe supported by intermediate simply supported beam and end cantilever beam are established, and the vibration and stability of drill pipe are analyzed. The above work provides a theoretical basis for ensuring the safety, reliability and parameter design of the sampler during drill pipe drilling. A prototype of an unmanned self-drilling sampler is developed for automatic sampling and collection of lunar soil under the lunar surface. The function and performance tests of the sampler completed in the laboratory show that the key technologies, such as coring, percussive drilling, sample winding, shaping and recovery, are successful. The basic work has been done for Chinese lunar exploration sampling and deep space exploration sampling technology in the future.
【學(xué)位授予單位】：中國(guó)礦業(yè)大學(xué)（北京）
【學(xué)位級(jí)別】：博士
【學(xué)位授予年份】：2012
【分類號(hào)】：P184.5

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