谁能帮我解决一道数学建模题 ？？救命呀！~！~！~
<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><b style="mso-bidi-font-weight: normal;"><span style="FONT-SIZE: 12pt; FONT-FAMILY: 楷体_GB2312;">注意：</span></b><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 楷体_GB2312;"><span style="mso-spacerun: yes;"></span></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 楷体_GB2312;">答卷以论文方式提交，书写格式参照正式发表的论文，包括论文名、作者姓名、中文摘要、内容（问题分析、模型假设、模型建立、模型求解、模型验证等方面）、参考文献（如果是引用互联网上的文章也要注明网址）和附录（例如计算过程中编写的程序）；<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" align="center" style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: center;"><span lang="EN-US" style="FONT-FAMILY: 楷体_GB2312;"><span style="mso-spacerun: yes;">
</span></span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 楷体_GB2312;"><span style="mso-spacerun: yes;">
</span><p></p></span></p><p class="MsoNormal" align="center" style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: center;"><b style="mso-bidi-font-weight: normal;"><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">洁具流水时间设计</span></b><b style="mso-bidi-font-weight: normal;"><span lang="EN-US" style="FONT-SIZE: 12pt;"><p></p></span></b></p><p class="MsoNormal" align="center" style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: center;"><b style="mso-bidi-font-weight: normal;"><span lang="EN-US" style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: 楷体_GB2312; POSITION: relative; TOP: -2pt; mso-text-raise: 2.0pt;"><p>
</p></span></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><span style="mso-spacerun: yes;"><font face="Times New Roman">
</font></span></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">我国是个淡水资源相当贫乏的国家，人均可利用淡水量不到世界平均数的四分之一。特别是近几年来，由于环境污染导致降水量减少，不少省市出现大面积的干旱。许多城市为了节能，纷纷采取提高水价、电价的方式来抑制能源消费。而另一方面，据有关资料报道，我国目前生产的各类洁具消耗的能源（主要是指用水量）比其它发达国家的同类产品要高出</span><span lang="EN-US"><font face="Times New Roman">60%</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">以上。</span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><span style="mso-spacerun: yes;"><font face="Times New Roman">
</font></span></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">某洁具生产产家打算开发一种男性用的全自动洁具，它的单位时间内流水量为常数</span><span lang="EN-US"><font face="Times New Roman">v</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">，为达到节能的目的，现有以下两个控制放水时间的设计方案供采用。</span></p><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';">方案一：使用者开始使用洁具时，受感应洁具以均匀水流开始放水，持续时间为</span><span lang="EN-US"><font face="Times New Roman">T</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">，然后自动停止放水。若使用时间不超过</span><span lang="EN-US"><font face="Times New Roman">T-5</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">秒，则只放水一次，否则，为保持清洁，在使用者离开后再放水一次，持续时间为</span><span lang="EN-US"><font face="Times New Roman">10</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">秒。</span></p><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';">方案二：使用者开始使用洁具时，受感应洁具以均匀水流开始放水，持续时间为</span><span lang="EN-US"><font face="Times New Roman">T</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">，然后自动停止放水。若使用时间不超过</span><span lang="EN-US"><font face="Times New Roman">T-5</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">秒，则只放水一次，否则，为保持清洁，到</span><span lang="EN-US"><font face="Times New Roman">2T</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">时刻再开始第二次放水，持续时间也为</span><span lang="EN-US"><font face="Times New Roman">T</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">。但若使用时间超过</span><span lang="EN-US"><font face="Times New Roman">2T-5</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">秒，则到</span><span lang="EN-US"><font face="Times New Roman">4T</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">时刻再开始第三次放水，持续时间也是</span><span lang="EN-US"><font face="Times New Roman">T……</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">在设计时，为了使洁具的寿命尽可能延长，一般希望对每位使用者放水次数不超过</span><span lang="EN-US"><font face="Times New Roman">2</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">次。</span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">该厂家随机调查了</span><span lang="EN-US"><font face="Times New Roman">100</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">人次男性从开始使用到离开洁具为止的时间</span><span lang="EN-US"><font face="Times New Roman">(</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">单位：秒</span><span lang="EN-US"><font face="Times New Roman">)</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">见下表：</span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0;"><span lang="EN-US"><p><font face="Times New Roman">
</font></p></span></p><table class="MsoNormalTable" cellspacing="0" cellpadding="0" border="1" style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; MARGIN: auto auto auto 23.4pt; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none; BORDER-COLLAPSE: collapse; mso-border-alt: solid windowtext .5pt; mso-yfti-tbllook: 480; mso-padding-alt: 0cm 5.4pt 0cm 5.4pt; mso-border-insideh: .5pt solid windowtext; mso-border-insidev: .5pt solid windowtext;"><tbody><tr style="mso-yfti-irow: 0; mso-yfti-firstrow: yes;"><td valign="top" width="84" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 1pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: windowtext 1pt solid; WIDTH: 63pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .5pt;"><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';">时间（秒）</span></p></td><td valign="top" width="420" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 1pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #fafafa; WIDTH: 315pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt;"><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><font face="Times New Roman"><span style="mso-spacerun: yes;">
</span>12<span style="mso-spacerun: yes;">
</span>13<span style="mso-spacerun: yes;">
</span>14<span style="mso-spacerun: yes;">
</span>15<span style="mso-spacerun: yes;">
</span>16<span style="mso-spacerun: yes;">
</span>17<span style="mso-spacerun: yes;">
</span>18</font></span></p></td></tr><tr style="mso-yfti-irow: 1; mso-yfti-lastrow: yes;"><td valign="top" width="84" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #fafafa; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: windowtext 1pt solid; WIDTH: 63pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt;"><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';">人次</span></p></td><td valign="top" width="420" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #fafafa; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #fafafa; WIDTH: 315pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt;"><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><font face="Times New Roman"><span style="mso-spacerun: yes;">
</span>1<span style="mso-spacerun: yes;">
</span>5<span style="mso-spacerun: yes;">
</span>12<span style="mso-spacerun: yes;">
</span>60<span style="mso-spacerun: yes;">
</span>13<span style="mso-spacerun: yes;">
</span>6<span style="mso-spacerun: yes;">
</span>3</font></span></p></td></tr></tbody></table><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><p><font face="Times New Roman">
</font></p></span></p><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';">（</span><span lang="EN-US"><font face="Times New Roman">1</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">）请你根据以上数据，比较这两种设计方案从节约能源的角度来看，哪一种更好？并为该厂家提供设计参数</span><span lang="EN-US"><font face="Times New Roman">T</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">（秒）的最优值，使这种洁具在相应设计方案下能达到最大限度节约水、电的目的；</span></p><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';">（</span><span lang="EN-US"><font face="Times New Roman">2</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">）从既能保持清洁又能节约能源出发，你是否能提出更好的设计方案，请通过建立数学模型与前面的方案进行比较。</span></p><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';">小弟为了过这科考试 希望个位大哥大姐能在明天帮我写出详细的文论 </span></p> 我也想要这篇论文啊！ :funk:我也想要一份啊~~~ 网上搜能搜到相关的文章及答案的 我也希望能拿到一份参考参考啊 耐心等待 ding!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 还是自己写吧⋯ 顶。。。。。我也想要一份~~~~~~~~~~
页:
[1]