193-瓶颈管理

2021年04月20日 14:04

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margin-bottom: 0.1px; padding: 0px; clear: both; text-indent: 50px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;"><span style="margin: 0px; padding: 0px; letter-spacing: 2px;">&nbsp;</span></p><p style="margin-top: 0px; margin-bottom: 0.1px; padding: 0px; clear: both; text-indent: 43px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;"><span style="margin: 0px; padding: 0px; color: black; letter-spacing: 2px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">今天我们要学习的是</span><strong style="margin: 0px; padding: 0px;"><span style="margin: 0px; padding: 0px; color: black; letter-spacing: 2px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">瓶颈管理</span></strong><strong style="margin: 0px; padding: 0px;"><span style="margin: 0px; padding: 0px; color: black; letter-spacing: 2px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">。</span></strong></p><p style="margin-top: 0px; margin-bottom: 0.1px; padding: 0px; clear: both; text-indent: 43px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;"><span style="margin: 0px; padding: 0px; color: black; letter-spacing: 2px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">&nbsp;</span></p><p style="margin-top: 0px; margin-bottom: 0.1px; padding: 0px; clear: both; text-indent: 43px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;"><strong style="margin: 0px; padding: 0px;"><span style="margin: 0px; padding: 0px; color: black; letter-spacing: 2px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">瓶颈管理</span></strong><span style="margin: 0px; padding: 0px; color: black; letter-spacing: 2px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">。鉴于瓶颈对系统的有效产出如此重要,因此对它们的安排和控制尤为重要。必须做好以下几点:</span></p><p style="margin-top: 0px; margin-bottom: 0.1px; padding: 0px; clear: both; text-indent: 43px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;"><br style="margin: 0px; padding: 0px;"/></p><p style="margin-top: 0px; margin-bottom: 0.1px; padding: 0px; clear: both; text-indent: 43px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;"><span style="margin: 0px; padding: 0px; color: black; letter-spacing: 2px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">1.</span><strong style="margin: 0px; padding: 0px;"><span style="margin: 0px; padding: 0px; color: black; letter-spacing: 2px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">在每个瓶颈之前建立时间缓冲</span></strong><span style="margin: 0px; padding: 0px; color: black; letter-spacing: 2px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">。时间缓冲是每个瓶颈前的库存(排队)区。由于使瓶颈保持工作最为重要,因此瓶颈绝不能缺少物料,只有在工作站进料中断时才能产生缺料情况。时间缓冲最长也只能等于由于工作站进料中断造成的预期延迟。这样一来,时间缓冲就能够保证不会由于缺料而使得瓶颈停机,这个队列也会保持在预定的最低数量上。</span></p><p style="margin-top: 0px; margin-bottom: 0.1px; padding: 0px; clear: both; text-indent: 43px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;"><br style="margin: 0px; padding: 0px;"/></p><p style="margin-top: 0px; margin-bottom: 0.1px; padding: 0px; clear: both; text-indent: 43px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;"><span style="margin: 0px; padding: 0px; color: black; letter-spacing: 2px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">2.<strong style="margin: 0px; padding: 0px;">控制物料进入瓶颈的速率</strong>。瓶颈必须以等于其产能的速率进料,这样时间缓冲就能保持为一个常量。作业序列中的第一个作业叫作门径作业( gateway operation)。这个作业控制了供应瓶颈的工作,它必须以等于瓶颈产出的速率进行工作,这样时间缓冲队列才能得以维持。</span></p><p style="margin-top: 0px; margin-bottom: 0.1px; padding: 0px; clear: both; text-indent: 43px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;"><br style="margin: 0px; padding: 0px;"/></p><p style="margin-top: 0px; margin-bottom: 0.1px; padding: 0px; clear: both; text-indent: 43px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;"><span style="margin: 0px; padding: 0px; color: black; letter-spacing: 2px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">3.<strong style="margin: 0px; padding: 0px;">想方设法提供必要的瓶颈产能</strong>。瓶颈产能的任何提高都能提高系统产能。较高的利用率、较少的准备活动以及通过改进来减少准备和加工时间的方法,是增加产能的有效途径。</span></p><p style="margin-top: 0px; margin-bottom: 0.1px; padding: 0px; clear: both; text-indent: 43px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;"><span style="margin: 0px; padding: 0px; color: black; letter-spacing: 2px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;"><br style="margin: 0px; padding: 0px;"/></span></p><p style="margin-top: 0px; margin-bottom: 0.1px; padding: 0px; clear: both; text-indent: 43px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;"><span style="margin: 0px; padding: 0px; color: black; letter-spacing: 2px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">4.<strong style="margin: 0px; padding: 0px;">调整负荷</strong>。重点是减少瓶颈上的负荷,采用诸如备用工作中心和转包的方法。这些方法较之使用瓶颈的成本更高,但是提高了非瓶颈的利用率和整个系统的有效产出,公司的销售和利润也会提高。</span></p><p style="margin-top: 0px; margin-bottom: 0.1px; padding: 0px; clear: both; text-indent: 43px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;"><span style="margin: 0px; padding: 0px; color: black; letter-spacing: 2px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;"><br/></span></p><p style="margin-top: 0px; margin-bottom: 0.1px; padding: 0px; clear: both; text-indent: 43px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;"><span style="margin: 0px; padding: 0px; color: black; letter-spacing: 2px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">5.<strong style="margin: 0px; padding: 0px;">变更计划</strong>。这是最后不得已的选择,但为了提供准确的交货期,或许必须这么做。</span></p><p style="margin-top: 0px; margin-bottom: 0.1px; padding: 0px; clear: both; text-indent: 43px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;"><span style="margin: 0px; padding: 0px; color: black; letter-spacing: 2px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">&nbsp;</span></p><p style="margin-top: 0px; margin-bottom: 0.1px; padding: 0px; clear: both; text-indent: 43px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;"><span style="margin: 0px; padding: 0px; color: black; letter-spacing: 2px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">一旦根据其可用产能和要满足的市场需求排定瓶颈,非瓶颈资源也就排定了。工作订单在瓶颈上完成后,在随后的作业上也排定了。</span></p><p style="margin-top: 0px; margin-bottom: 0.1px; padding: 0px; clear: both; text-indent: 43px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;"><span style="margin: 0px; padding: 0px; color: black; letter-spacing: 2px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">供料作业应该通过从瓶颈点开始的后向排程来保护时间缓冲。如果时间缓冲设置为4天,紧靠瓶颈前的作业就要计划在瓶颈上加工之前4天完成需要的零件。前面的每一个作业都可以用同样的方法进行倒排,这样零件就能在下一个作业要求时可用。</span></p><p style="margin-top: 0px; margin-bottom: 0.1px; padding: 0px; clear: both; text-indent: 43px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;"><br style="margin: 0px; padding: 0px;"/></p><p style="margin-top: 0px; margin-bottom: 0.1px; padding: 0px; clear: both; text-indent: 43px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;"><span style="margin: 0px; padding: 0px; color: black; letter-spacing: 2px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">由于供料作业上发生的任何扰动都能被时间缓冲吸收,因此有效产出不会受到其影响,而且在制品库存也减少了。由于排队等待时间限制在时间缓冲期内,因此提前期也缩短了。</span></p><p style="margin-top: 0px; margin-bottom: 0.1px; padding: 0px; clear: both; text-indent: 43px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;"><span style="margin: 0px; padding: 0px; color: black; letter-spacing: 2px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">&nbsp;</span></p><p style="margin-top: 0px; margin-bottom: 0.1px; padding: 0px; clear: both; text-indent: 43px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;"><span style="margin: 0px; padding: 0px; color: black; letter-spacing: 2px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">&nbsp;</span></p><p style="margin-top: 0px; margin-bottom: 0.1px; padding: 0px; clear: both; text-indent: 43px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;"><span style="margin: 0px; padding: 0px; color: black; letter-spacing: 2px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">最后今天的结尾Tonii老师还是抛出一个小问题,希望大家可以根据今天的学习内容进行思考,并欢迎留言与Tonii老师进行深入交流。</span></p><p style="margin-top: 0px; margin-bottom: 0.1px; padding: 0px; clear: both; text-indent: 43px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;"><span style="margin: 0px; padding: 0px; color: black; letter-spacing: 2px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">&nbsp;</span></p><p style="margin-top: 0px; margin-bottom: 0.1px; padding: 0px; clear: both; text-indent: 43px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;"><strong style="margin: 0px; padding: 0px;"><span style="margin: 0px; padding: 0px; color: black; letter-spacing: 2px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">每日一问:如果你的公司遇到瓶颈现象,你会如何管理?</span></strong><span style="margin: 0px; padding: 0px; color: black; letter-spacing: 2px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;"></span></p><p style="margin-top: 0px; margin-bottom: 0.1px; padding: 0px; clear: both; text-indent: 43px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;"><span style="margin: 0px; padding: 0px; color: black; letter-spacing: 2px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">&nbsp;</span></p><p style="margin-top: 0px; margin-bottom: 0.1px; padding: 0px; clear: both; text-indent: 43px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;"><span style="margin: 0px; padding: 0px; color: black; letter-spacing: 2px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">今天我们就讲到这里,希望大家在企业运营中精益求精,我们下次再见!</span></p></section></section></section></section><p></p><p></p><section powered-by="xiumi.us" style="white-space: normal; margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; font-family: -apple-system-font, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; letter-spacing: 0.544px; background-color: rgb(255, 255, 255); text-align: center; line-height: 2; overflow-wrap: break-word !important;"><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; clear: both; max-width: 100%; box-sizing: border-box; min-height: 1em; overflow-wrap: break-word !important; text-align: center;"><span style="color: rgb(0, 0, 0);">想听Tonii老师的课程?</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; clear: both; max-width: 100%; box-sizing: border-box; min-height: 1em; overflow-wrap: break-word !important; text-align: center;"><span style="color: rgb(0, 0, 0);">想和慧工云小学妹有更多互动?</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; clear: both; max-width: 100%; box-sizing: border-box; min-height: 1em; overflow-wrap: break-word !important; text-align: center;"><span style="color: rgb(0, 0, 0);">就添加慧工云小学妹微信吧!</span></p></section><p></p><p></p><section powered-by="xiumi.us" style="white-space: normal; margin: 10px 0px; padding: 0px; max-width: 100%; box-sizing: border-box; font-family: -apple-system-font, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; letter-spacing: 0.544px; background-color: rgb(255, 255, 255); text-align: center; overflow-wrap: break-word !important;"><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; vertical-align: middle; display: inline-block; line-height: 0; width: 101.547px; overflow-wrap: break-word !important;"><img data-ratio="1" src="https://x.industics.com/public/upload/image/20210305/1614926401408131.gif" data-type="gif" data-w="300" width="100%" style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; background-color: rgb(238, 237, 235); border-width: 1px; border-style: solid; border-color: rgb(238, 237, 235); background-size: 22px; background-position: center center; background-repeat: no-repeat; vertical-align: middle; height: auto !important; overflow-wrap: break-word !important; visibility: visible !important; width: 101px !important;"/></section></section><section powered-by="xiumi.us" style="white-space: normal; margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; font-family: -apple-system-font, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; letter-spacing: 0.544px; background-color: rgb(255, 255, 255); font-size: 14px; text-align: center; overflow-wrap: break-word !important;"><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; clear: both; max-width: 100%; box-sizing: border-box; min-height: 1em; overflow-wrap: break-word !important; text-align: center;"><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; background-color: rgb(255, 202, 0); color: rgb(0, 0, 0); overflow-wrap: break-word !important;">让慧工云小学妹为您带来更多咨讯</span></p></section><section powered-by="xiumi.us" style="white-space: normal; 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