本文選題：心室輔助裝置 + 錐形螺旋血泵�。� 參考：《燕山大學(xué)》2012年碩士論文

【摘要】：錐形螺旋軸流血泵是目前世界上應(yīng)用比較廣泛的一種人工心臟輔助裝置。其驅(qū)動(dòng)裝置為電磁驅(qū)動(dòng)，即采用直流通電線圈產(chǎn)生的磁場(chǎng)與轉(zhuǎn)子內(nèi)的永磁體共同作用使轉(zhuǎn)子旋轉(zhuǎn)，取消導(dǎo)線穿引。由于不需要導(dǎo)線穿入身體，因此能大大降低人體機(jī)能感染，同時(shí)，錐形軸流血泵還有機(jī)械磨損小，能效比高等優(yōu)點(diǎn)。 21世紀(jì)高速發(fā)展的計(jì)算機(jī)技術(shù)配合以日趨成熟的數(shù)值計(jì)算技術(shù)，對(duì)人工血泵的研究提供了很大的幫助。因此完全可以利用先進(jìn)的計(jì)算機(jī)仿真技術(shù)模擬血泵的輸出特性，大大節(jié)省研究時(shí)間和研制成本。并且，用數(shù)值計(jì)算方法來研究血泵內(nèi)部的流場(chǎng)分布已能取得很好的效果。本文針對(duì)錐形螺旋軸流血泵泵血流量、壓強(qiáng)性能有待提升的問題，采用數(shù)值模擬、理論分析和試驗(yàn)分析相結(jié)合的方法對(duì)血泵的結(jié)構(gòu)進(jìn)行分析研究，，找出血泵結(jié)構(gòu)對(duì)血泵性能影響的規(guī)律，為以后血泵結(jié)構(gòu)的研究打下基礎(chǔ)。 本文研究的血泵結(jié)構(gòu)主要包括以下幾個(gè)方面：轉(zhuǎn)子葉片數(shù)、轉(zhuǎn)子螺距、轉(zhuǎn)子錐度、進(jìn)出口導(dǎo)輪葉片形狀和進(jìn)出口導(dǎo)輪葉片數(shù)。研究的血泵性能參數(shù)主要包括：血泵泵血壓強(qiáng)、血泵流量和血泵內(nèi)部流場(chǎng)分布。首先，對(duì)不同結(jié)構(gòu)參數(shù)的血泵進(jìn)行建模、劃分網(wǎng)格、設(shè)置參數(shù)，采用計(jì)算流體動(dòng)力學(xué)(Computational Fluid Dynamics，簡稱CFD)仿真軟件，對(duì)不同結(jié)構(gòu)參數(shù)的血泵進(jìn)行數(shù)值模擬。其次，根據(jù)數(shù)值模擬結(jié)果分析對(duì)比得到不同血泵結(jié)構(gòu)參數(shù)對(duì)血泵性能的影響規(guī)律，優(yōu)選最佳結(jié)構(gòu)參數(shù)。最后，基于對(duì)比分析優(yōu)選的最佳結(jié)構(gòu)血泵樣機(jī)，搭建實(shí)驗(yàn)平臺(tái)，測(cè)試血泵泵血情況，對(duì)流量、壓強(qiáng)等性能參數(shù)進(jìn)行測(cè)試和分析。
[Abstract]:The conical spiral shaft bleeding pump is a kind of artificial heart assist device which is widely used in the world. Its driving device is electromagnetic drive, that is, the magnetic field produced by DC coils and permanent magnets in the rotor are used together to make the rotor rotate and lead the wire to be eliminated. Because no wires are needed to penetrate into the body, it can greatly reduce the infection of human function, at the same time, the conical shaft bleeding pump also has little mechanical wear. The rapid development of computer technology in the 21st century with the increasingly mature numerical calculation technology has provided a great help for the study of artificial blood pump. Therefore, the advanced computer simulation technology can be used to simulate the output characteristics of the blood pump, which greatly saves the research time and development cost. In addition, the numerical calculation method has been used to study the flow field distribution in the blood pump. Aiming at the problem that the blood flow and pressure performance of the conical screw shaft bleeding pump need to be improved, the structure of the blood pump is analyzed and studied by the methods of numerical simulation, theoretical analysis and experimental analysis. To find out the influence of the structure of bleeding pump on the performance of blood pump, lay a foundation for the study of the structure of blood pump in the future. The structure of blood pump studied in this paper mainly includes the following aspects: rotor blade number, rotor pitch, rotor taper, inlet and outlet guide wheel blade shape and number of inlet and outlet guide wheel blades. The parameters of blood pump performance include: high blood pressure, blood pump flow and internal flow field distribution. Firstly, the blood pump with different structure parameters is modeled, meshed, and the parameters are set. The blood pump with different structure parameters is numerically simulated by CFD (Computational fluid Dynamics) simulation software. Secondly, according to the results of numerical simulation, the influence of different blood pump structure parameters on the performance of blood pump is obtained, and the optimal structure parameters are selected. Finally, based on comparative analysis of the optimal structure of the blood pump prototype, build the experimental platform, test the blood pump, flow, pressure and other performance parameters are tested and analyzed.
【學(xué)位授予單位】：燕山大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類號(hào)】：TH789

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