不同螺紋下醫(yī)用微型機(jī)器人的理論分析和實(shí)驗(yàn)研究.pdf

1、浙江大學(xué)碩士學(xué)位論文不同螺紋下醫(yī)用微型機(jī)器人的理論分析和實(shí)驗(yàn)研究姓名：梁亮申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：機(jī)械設(shè)計(jì)及理論指導(dǎo)教師：周銀生20030101!!堅(jiān)查蘭!!!!登垡堡苧壘!!翌竺ABSTRACTThegoalofthispapertoisevaluateadvantagesanddisadvantagesofthenon—invasivemedicalmicro—robotswhichhavedifferentshapescrewsa

2、ndchoosethemostsuitableshapescrewwhichenablethismicro—robottobesuspendedtomovemorequicklyandformthickermucusfilmThemainpartsofthispaperareasfollowed：Infirstchapter，minimalinvasivesurgery(orendoscopes)andmicromachinearefi

3、rstlyintroduced，andtheresearchstatusandfutureofnationalandinternationalmicrorobotsareanalyzedAnoninvasivemedicalmicro—robotisdiscussedandtheresearchmeaningsandcontentsofthewholeissuearepresentedInchapter2，anaccuratemodif

4、iedReynoldsequationisderivedThemodifiedReynoldsequationissolvednumericallywiththefinitedifferentmethod，thegeneratedaxialthrustfoice，minimalmucusfilmthickness，loadcapacityofhydrodynamicpressureandcircumferentialfrictionun

5、dertherectangularscrewareobtainedAtlast，usingnumeralmethodsandcoordinategraphs，theinfluencesofrectangularscrewparametersonthegeneratedaxialthrustforce，minimalmucusfilmthickness，loadcapacityofhydrodynamicpressureandcircum

6、ferentialfrictionarestudiedandanalyzedInchapter3，themodifiedReynoldsequationissolvednumericallywiththefinite，differentmethod，andthegeneratedaxialthrustforce，minimalmucusfilmthickness，load‘capacityofhydrodynamicpressurean

7、dcircumferentialfrictionunderthetrapezoidalSCOWareobtainedAtlast，usingnumeralmethodsandcoordinategraphs，theinfluencesoftrapezoidalscrewparametersonthegeneratedaxialthrustforce，minimalmucusfilmthickness，loadcapacityofhydr

8、odynamicpressureandcircumferentialfrictionarestudiedandanalyzedInchapter4，themodifiedReynoldsequationissolvednumericallywiththefinitedifferentmethod，andthegeneratedaxialthrustforce，minimalmucusfilmthickness，loadcapacityo

9、fhydrodynamicpressureandcircumferentialfricfionundertheserratescrewareobtainedAtlast，usingnumeralmethodsandcoordinategraphs，theinfluencesofserratescrewparametersonthegeneratedaxialthrustforce，minimalmucusfilmthickness，lo

10、adcapacityofhydrodynamicpressureandcircumferentialfrictionarestudiedandanalyzedInchapter5，usingcoordinategraphs，theinfluencesofrectangularscrewtrapezoidalscrewandserratescrewonthegeneratedaxialthrustforce，minimalmucusfil