本文選題：模擬裝置 + 加壓方案　； 參考：《合肥工業(yè)大學(xué)》2015年碩士論文

【摘要】：隨著海洋工程技術(shù)的快速發(fā)展,我國已從“淺藍(lán)”邁向了“深藍(lán)”。但由于深海環(huán)境具有復(fù)雜性和特殊性,難以身臨其境地進(jìn)行分析和研究,因此需要設(shè)計(jì)一套能夠模擬深海環(huán)境的裝置�；诖吮疚奶岢鲆环N深海壓力模擬試驗(yàn)裝置用于對深海壓力傳感器的壓力標(biāo)定。 本文針對試驗(yàn)裝置的設(shè)計(jì)指標(biāo)和控制特性要求,提出通過強(qiáng)制改變腔體內(nèi)的液體體積以改變?nèi)萜鲀?nèi)部壓力的加壓方案,繼而初步確定了模擬試驗(yàn)裝置的總體構(gòu)成以及精確控制進(jìn)給量的控制方法；然后通過對主要組成部分(壓力缸、螺栓、管路、電機(jī))進(jìn)行設(shè)計(jì)與計(jì)算,完成了深海壓力模擬試驗(yàn)裝置的整體設(shè)計(jì)；由于在給壓力缸加壓的過程中試驗(yàn)裝置會產(chǎn)生相應(yīng)地變形,而試驗(yàn)裝置的變形會導(dǎo)致壓力缸內(nèi)的壓力減小,此時(shí)利用ANSYS軟件對壓力缸、螺栓和管路進(jìn)行靜力學(xué)分析,得出了不同壓力環(huán)境下試驗(yàn)裝置的相關(guān)變形量；最后通過對試驗(yàn)裝置變形量和液體壓縮量的計(jì)算及相關(guān)公式的推導(dǎo),得出了活塞進(jìn)給量與壓力缸內(nèi)部的壓力變化量的關(guān)系曲線。 本課題研究的模擬裝置通過對驅(qū)動系統(tǒng)實(shí)行閉環(huán)控制可以精確地控制進(jìn)給量,從而達(dá)到高精度的模擬效果。試驗(yàn)裝置包括兩個(gè)進(jìn)給系統(tǒng),其中大活塞進(jìn)給系統(tǒng)可以加壓至目標(biāo)壓力值,小活塞進(jìn)給系統(tǒng)可以高精度的改變壓力缸內(nèi)部的微小壓力,其精度可達(dá)0.02%FS,故本裝置可以實(shí)現(xiàn)微小壓力的標(biāo)定作用,為后續(xù)深海壓力傳感器的研究提供了良好的實(shí)驗(yàn)平臺。
[Abstract]:With the rapid development of marine engineering technology, China has moved from "shallow blue" to "deep blue". However, because of the complexity and particularity of the deep-sea environment, it is difficult to analyze and study it. Therefore, it is necessary to design a set of devices to simulate the deep sea environment. Based on this paper, a kind of deep sea pressure simulation test device is put forward. Pressure calibration for deep sea pressure sensors.
In this paper, aiming at the design index and control characteristic requirements of the test device, the pressure scheme for changing the internal pressure of the container is proposed by forcing the volume of the liquid in the cavity to change the internal pressure of the container. Then, the overall composition of the simulation test device and the control method for the precise control of the feed are preliminarily determined. Then, the main components (pressure cylinder, screw) are introduced. The design and calculation are carried out to complete the overall design of the deep sea pressure simulation test device. Due to the deformation of the test device in the pressure cylinder of the pressure cylinder, the deformation of the test device will cause the pressure in the pressure cylinder to be reduced. At this time, the static force of the pressure cylinder, the bolt and the pipe will be static with the ANSYS software. According to the analysis, the relative deformation amount of the test device under different pressure conditions is obtained. Finally, the relation curve of the pressure variation in the piston feed and the pressure cylinder is obtained through the calculation of the deformation of the test device and the calculation of the liquid compression and the derivation of the related formulas.
Through closed loop control of the driving system, the simulation device can accurately control the feed and achieve high precision simulation effect. The experiment device includes two feed systems, in which the feed system of the large piston can be pressurized to the target pressure value, and the small piston feed system can change the internal micro of the pressure cylinder with high precision. The precision of small pressure is up to 0.02%FS, so this device can realize the calibration of small pressure. It provides a good experimental platform for the further study of deep sea pressure sensors.
【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】：2015
【分類號】：P755.2

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