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<><FONT color=black><FONT size=2>作 者:吴志洪</FONT></FONT></P>
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8 H/ q5 H0 e' c. r" R<><FONT color=black><FONT size=2>送选单位:吉林大学珠海学院</FONT></FONT></P>" W7 i, o k' z' I" d3 _* j8 r
<><FONT color=black><FONT size=2> </FONT></FONT></P>$ d" W9 n; O5 v5 a7 A
<><FONT color=black><FONT size=2>作品编号:20080916130</FONT></FONT></P>) e! M0 _' [9 k, W
<><FONT color=black><FONT size=2></FONT></FONT> </P>
5 V! [" V% P+ ~2 d$ ?6 a. V" D<><FONT color=black><FONT size=2>作品名称:HY_8V75Q发动机</FONT></FONT></P>
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<><FONT color=black><FONT size=2>作品介绍:</FONT></FONT></P>' {0 \9 s7 x% }% C" f/ N
<><FONT color=#000000 size=2></FONT> </P><FONT color=#000000><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><?xml:namespace prefix = st1 ns = "urn:schemas-microsoft-comffice:smarttags" /><st1:chmetcnv UnitName="毫米" SourceValue="0" HasSpace="False" Negative="False" NumberType="1" TCSC="0" w:st="on"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">0 T; I# p7 e( R! [
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-SIZE: 9pt; mso-bidi-font-size: 12.0pt"><SPAN style="mso-spacerun: yes"><FONT face="Times New Roman"><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">HY_8V75Q</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: 'Times New Roman'">发动机是我查阅大量资料和图片,再进行设计的,由于数据和资料来源十分有限,所以建模也很困难,总共有</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">139</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: 'Times New Roman'">个部件,</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">789</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: 'Times New Roman'">个装配件,尽可能合理的把发动机设计出来。为了方便修改,开始建模时则用了线条把关键构建进行模拟和</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">CAE</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: 'Times New Roman'">的相关测试,保证以后建模能少出错和参数化。</SPAN></FONT></SPAN></SPAN></SPAN></SPAN></st1:chmetcnv></P></SPAN></FONT>
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' V# ?2 {$ |, r! v2 W7 k8 r<P><FONT color=#000000 size=2>作品欣赏:</FONT></P>
0 o/ R- ~/ n( f1 \2 |/ L# Y3 M<P><FONT color=#000000 size=2></FONT> </P>
5 X# X, |7 N& r7 p<P>
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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT color=#000000>发动机结构复杂,故先把关键的构件用线段模拟,包括运动仿真,然后再以这些线条为模板建模装配,这样可以减少出错和提高建速度,并且也利于修改。</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; mso-bidi-font-size: 12.0pt"><?xml:namespace prefix = o ns = "urn:schemas-microsoft-comfficeffice" /><o:p></o:p></SPAN></P>
. V! ?# M( g6 L3 Q3 i" Z6 ~: q' |! ?<P><FONT color=#000000><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: 'Times New Roman'"></SPAN></FONT> </P>
/ a: w: q4 k+ i7 L2 ~0 A<P><FONT color=#000000><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: 'Times New Roman'"></SPAN></FONT> </P>
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9 j+ H) o' [2 ~9 t) ~2 U! l<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-SIZE: 9pt; mso-bidi-font-size: 12.0pt"><FONT face="Times New Roman">8</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">缸</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; mso-bidi-font-size: 12.0pt"><FONT face="Times New Roman">V</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">形排列的机体,主要特点是机体宽度大,高度和长度较小,质量轻且外形尺寸较小。由于宽度较大,将显著地提高机体的抗扭转刚度和横向及纵向的抗弯曲刚度。其机型适合家庭轿车的动力机体,并且有马力大,工作平稳,噪音低,结构紧凑,便于布置,高速平稳的优点。</SPAN></P>
- Q7 C6 S$ ~8 v E$ Q, O3 K<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"></SPAN> </P>! H% Y2 B, {; R; Y( Y6 E
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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-SIZE: 9pt; mso-bidi-font-size: 12.0pt"><FONT face="Times New Roman">HY_8V75Q</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">发动机气缸套采用的是湿缸套,便于散热。</SPAN></P>
4 C9 N! F7 \) f( _: q. V<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"></SPAN> </P>
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5 d- x. ^* E# l8 ~) L' D<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: 'Times New Roman'">气缸盖是与机体一起形成发动机的密封空间的构件,气缸盖上有燃烧室、水套、润滑油道、进排气道、气门驱动机构、火花塞和喷油器等,因此气缸盖结构胶复杂。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">V8</SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: 'Times New Roman'">发动机主要采用是整体式气缸盖。</SPAN></SPAN></P># p' [" I* g" N$ z. H/ Y F
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+ y8 K6 x/ Q$ X$ V4 X; i<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: 'Times New Roman'"></SPAN></SPAN> </P><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: 'Times New Roman'">
8 |- _5 G/ j+ K7 C* Y<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>湿式润滑方式发动机的油底壳是储存润滑油的容器,常用铝合金铸造或薄钢板冲压成形,衬以垫片,用多个螺钉紧固在曲轴箱下面。</FONT></SPAN></P>- j& {! Q$ } |* c3 @$ j0 u
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</FONT></SPAN></P><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">& b/ H3 D/ x+ F! G; G: r! J
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: center" align=center><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>曲柄连杆机构是汽车发动机的主要部分,混合气燃烧产生的压力推动活塞在气缸内运动,通过连杆转变成</FONT></SPAN></P>
, \0 M5 ~/ p7 T0 A+ q# W<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>曲轴的旋转运动,输出功率。曲柄连杆机构包括活塞、连杆组和曲轴组三部分。</FONT></SPAN></P>6 p1 _1 x! f3 Y4 ]; e. E; X$ \, i
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0 T: t8 s& K/ N( H, Q, x<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>活塞组在气缸内承受和传递燃烧气体压力,与气缸盖、与缸套内壁构成密封的燃烧室空间。活塞组包括活塞、活塞环(气环和油环)、活塞销及活塞销卡环等零件。</FONT></SPAN></P>
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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>连杆组在做功行程时推动曲轴转动对外输出功率,在其他将曲轴的转动传递给活塞,推动活塞往复运动,连杆普遍用中碳钢和中碳合金钢材料模锻制成的。</FONT></SPAN></P>% F* n0 ?$ {9 Z
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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">
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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 18pt"><FONT size=3><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">气门品类很多,配器系统也越来越先进,其中日本的本田公司的</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">VTEC</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">汽油机的可变凸轮配气机构,通过高速凸轮和低速凸轮变动,使发动机在不同转速下可以获得较好的动力性能和经济性能。</SPAN></FONT></P>
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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT size=3>曲轴</FONT></SPAN></P>
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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">凸轮轴上的凸轮表面型线控制气门开闭,满足发动机对换气过程的需求。凸轮轴用优质铸铁、中碳钢或中碳合金钢组成。</SPAN></P>
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[ 本帖最后由 forestone 于 2008-9-18 09:41 编辑 ] |
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