【正文】 學(xué)院畢業(yè)設(shè)計(jì)（論文） 32 N45 G00 Z100。 N50 X100。 N55 M05。 N60 M00。 N65 M03 S1100。 N70 G00 X22 Z2。 N75 G70 P25 Q40 。 N76 M09。 N80 G00 Z100。 N85 X100。 N90 M05。 N95 M30。 洛陽理工學(xué)院畢業(yè)設(shè)計(jì)（論文） 33 結(jié) 論 此次畢業(yè)設(shè)計(jì)我們做的課題是 三地自行車 的工業(yè)設(shè)計(jì)與模具設(shè)計(jì)，從這次設(shè)計(jì)，我們學(xué)到了很多東西。雖然我們設(shè)計(jì)的只是一個(gè)簡單的 自行 車，但是從這次簡單的設(shè)計(jì)中得出了以下幾點(diǎn)結(jié)論： 1． 這次設(shè)計(jì)讓我對(duì)使用 Pro/Engineer 進(jìn)行設(shè)計(jì)工作的基本流程和設(shè)計(jì)的方法以及理念有了一個(gè)更深 的認(rèn)識(shí)。 2．雖然這次設(shè)計(jì)是簡化設(shè)計(jì)，但是很多動(dòng)作也要有相應(yīng)的機(jī)構(gòu)與之對(duì)應(yīng)，通過這些機(jī)構(gòu)的設(shè)計(jì)，讓我又鞏固和深化了所學(xué)的機(jī)械理論知識(shí)。 3． 通過對(duì) 自行車座 模具的設(shè)計(jì)，對(duì)常用塑料在成型過程中對(duì)模具的工藝要求有了更深一層的理解，掌握了塑料成型模具的結(jié)構(gòu)特點(diǎn)及設(shè)計(jì)計(jì)算方法，對(duì)獨(dú)立設(shè)計(jì)模具具有了一次新的鍛煉。 4．模具設(shè)計(jì)部分，除了對(duì)注塑模具設(shè)計(jì)的理論知識(shí)鞏固之外，對(duì)用Pro/Engineer 進(jìn)行模具設(shè)計(jì)的過程以及常見的問題也有了一個(gè)更深的認(rèn)識(shí)。 5．由于 CAD/CAM 工業(yè)軟件在產(chǎn)品設(shè)計(jì)與制造方面的應(yīng)用的優(yōu)點(diǎn)，在未 來制造業(yè)這些軟件的應(yīng)用將會(huì)更加普遍。 總而言之，這次設(shè)計(jì)讓我積累了很多寶貴的經(jīng)驗(yàn)，為以后的工作打下了堅(jiān)實(shí)的基礎(chǔ)。 洛陽理工學(xué)院畢業(yè)設(shè)計(jì)（論文） 34 謝 辭 本課題在選題及 設(shè)計(jì) 過程中得到 孟 老師的悉心指導(dǎo)。 孟 老師多次詢問設(shè)計(jì) 進(jìn)程，并為我指點(diǎn)迷津，幫助我開拓 設(shè)計(jì) 思路，精心點(diǎn)撥、熱忱鼓勵(lì)。孟 老師一絲不茍的作風(fēng)，嚴(yán)謹(jǐn)求實(shí)的態(tài)度，踏踏實(shí)實(shí)的精神，不僅授我以文，而且教我做人， 短短一個(gè)多月時(shí)間 ，卻給以終生受益無窮之道。 在此，再一次 對(duì) 孟 老師 表示感謝！洛陽理工學(xué)院畢業(yè)設(shè)計(jì)（論文） 35 參考文獻(xiàn) [1] 劉方湖 , 馬培蓀 , 曹志奎 ． 五輪鉸接式 自行車 的運(yùn)動(dòng)學(xué)建模 ． 2021，06 [2] 鄧宗全 , 高 海波 , 胡明 ． 行星越障輪 自行 車的設(shè)計(jì) ． 哈爾濱工業(yè)大學(xué)學(xué)報(bào) , 2021， 02 [3] David A． E， Corinne M B， Cauley M， et a1． Mobility studyfor a lunar[J]． Mobile Robots III， 1988(1)： 263— 270 [4] Brian D H． Chris V． The challenges of designing the rockerbogie suspension for the mars exploration rover／／ Proc． of the 37th Aerospace Mechanisms Symposium， 2021 [5] Brian D V The challenges of designing the rockerbogie suspension for the mars exploration rover 2021 [6] 侯緒研 ,高海波 ,胡明 ,鄧宗全 ． 基于越障性能的 山地自行 車懸架尺寸優(yōu)化設(shè)計(jì) ． 2021， 02 [7] 鄧宗全 ， 胡明． 自行 車的運(yùn)動(dòng)學(xué)建模．中國機(jī)械工程． 14 卷 22 期，2021， 11 [8] 王 左偉，桀斌． 自行 車運(yùn)動(dòng)學(xué)建模與分析 . 宇航學(xué) 報(bào)，第 24 卷第 5期， 2021， 09 [9] Dong Hun Shin， Kyung Hcon Park Velocity Kine∞ natic Modeling for Wheeled Mobile Robots． International Conference or Robotics＆ Automation So。u1． Korea． May 2126， 2021 [10] 尚建忠 , 羅自榮 , 張新訪 ． 兩種輪式 山地自行 車 懸架方案及其虛擬樣機(jī)仿真 ． 中國機(jī)械工程 , 2021， 01 [11] 鄭永春，歐陽白遠(yuǎn)，王世杰，等． 山地自行 車 的物理和 機(jī)械特性 ．礦物巖石， 2021， 04 [12] 葉久新 ． 塑料模設(shè)計(jì)指導(dǎo) ． 北京理工大學(xué)出版社， 2021 [13] 屈華昌 ． 塑料成型工藝與模具設(shè)計(jì) ． 高等教育出版社， 2021 [14] 張維合 ． 注塑模具復(fù)雜結(jié)構(gòu) 100 例 ． 化學(xué)工業(yè)出版社， 2021 洛陽理工學(xué)院畢業(yè)設(shè)計(jì)（論文） 36 [15] 李建國，崔平遠(yuǎn)，居鶴華．基于恒星敏感器的 山地自行 車 車向角確定算法．控制工程． 2021， 05 [16] Jianguo Li， Pingyuan Cui， Hehua Ju． Design of a new digital sundial for lunarrover true north detection and pose estimation． The 8m ILEWG Confefence on Exploration and Utilization ofthe moon． Beijing , 2021 [17] Hirose S， Kuwahara H， Wakabayasbi Y， et a1． The mobility design concepts characteristics and ground testing of alloffset — wheel rover vehicle[J]． Space Technology， 1997， 17 [18] NASA， Nasa Space Vehicle Design Criteria(Environment)Lunar Surface Modeh National Aeronautics and Space Administration， 1969 [19] David A． E， Corinne M B， Cauley M， et a1． Mobility study for a lunar[J]． Mobile Robots III， 1988， 01 洛陽理工學(xué)院畢業(yè)設(shè)計(jì)（論文） 37 外文資料翻譯 IN REJECTING ELECTRIC BIKES, the municipalities cited such concerns as the threat of pollution from spent leadacid batteries, interference with automobiles resulting in accidents or slowed traffic, and the impact on the viability of public transit systems. Advocates for green transportation say these arguments amount to thinly veiled attempts to protect the electricbicycle industry39。s petitors. The real reason is petition from interest groups, says He Zuoxiu, a renowned theoretical physicist and academician at the Chinese Academy of Sciences. An outspoken figure in public debates around environmental and energy policy, He says none of the arguments against electric bikes has merit. Leadacid batteries, he points out, are used in cars, too. The real pollution source is not the electric bikes, it39。s the automobiles, he adds. And he says transit operators and manufacturers should be forced to pete with the electric bikes by offering more efficient services and cheaper, cleaner vehicles. The problem, he explains, is that electricbike manufacturers are insignificant next to the other interest groups, particularly the car makers that are attracting billions of dollars of foreign investment. The automotive industry is identified as a pillar industry in China39。s official fiveyear plans. Back with surpri Although the odds against them are daunting, electricbike manufacturers are pushing sing success. The mastermind of one of the most highprofile battles is Ni Jie, president of Luyuan Electric Vehicle Co., a privately owned manufacturer that has a pragmatic approach to the market, a sizable Ramp。D effort, and an ambitious vision for Chinese EV technology. Luyuan EV was a government venturecapital spinoff. Building from a prototype put together nine years ago by Luyuan39。s general manager, Hu Ji Hong, Ni39。s wife, Luyuan went private after Ni, Hu, and other principals bought out the initial investors. They have built a dynamic pany that sold 120 000 洛陽理工學(xué)院畢業(yè)設(shè)計(jì)（論文） 38 electric bikes and scooters last year and expects to sell 300 000 this year [see photo, Coming Off the Line]. To find Luyuan EV, you must head off the beaten track to Jinhua, an industrial metropolis of 1 million people that is tucked into the unbroken sprawl south of Shanghai that is Zhejiang province. In the chairman39。s spacious corner office (one of the few heated rooms at Luyuan on a cold February day), Ni chainsmokes, sipping from a seemingly bottomless jar of wellsteeped green tea. He says traffic is the top concern in many Chinese cities, and the electric bicycle fills a void by offering an affordable alternative to sitting in a stationary car or bus. If governments don39。t have the solution, the people will behave in their own ways, says Ni. There39。s no way to stop that.! Ni took people power to surprising limits in 2021 when officials in Fuzhou, the capital of neighboring Fujian province, decided