【正文】
ith PQRST analysis (step 1) for the overall production activities. The data collection fields including P (product),Q (quantity), R (routing), S (supporting), and T (time) should be scrutinized in order to assure the validity of the input data at the design stage. 本節(jié)重點(diǎn)對(duì) SLP 法的理論和實(shí)施方法進(jìn)行介紹,大體概況如圖 1 所示: SLP法從對(duì)生產(chǎn)線進(jìn)行全面分析的 PQRST 開(kāi)始。 procedure 1 . 數(shù) 據(jù) 收 集P ( 產(chǎn) 品 ) 、 Q ( 產(chǎn) 量 ) 、 R ( 生 產(chǎn) 路 線 ) 、 S ( 輔 助 服 務(wù) 部 門(mén) ) 、 T( 時(shí) 間 )3 . 作 業(yè) 分 析2 . 物 流 分 析4 . 相 互 關(guān) 系 圖6 . 可 利 用 的 空 間5 . 需 要 的 空 間7 . 空 間 關(guān) 系 圖8 . 各 種 修 改 意 見(jiàn) 9 . 各 種 限 制 條 件1 1 . 評(píng) 估 和 確 定 方 案1 0 . 布 置 方 案圖 1 SLP 法實(shí)施程序圖 In the flow of material analysis (step 2), all material flows from the whole production line are aggregated into a fromto chart that represents the flow intensity among different tool sets or work positions. The step of “activity relationships” (step 3) performs qualitative analysis towards the close relationship decision among different work positions. 在第二步物流分析里所有生產(chǎn)線的物料流動(dòng)都被統(tǒng)計(jì)到一個(gè)代表不同工位或者不同工作地點(diǎn)物流強(qiáng)度的從致表中。 The step of “relationship diagram” (step 4) positions areas spatially. For those work positions (areas) that have strong interactions and/or close relationships are placed in proximity. 第四步用相關(guān)關(guān)系圖將各工序的相關(guān)關(guān)系表示出來(lái)。 The steps of “space requirements” and “space available” (steps 5 and 6) determine the amount of floor space to be allocated to each work position. This decision is particularly critical to a workshop design problem due to the costly clean room floor space and the difficulty in future expansion. 第五步和第六步“需要的空間”和“可以利用的空間”決 定了可以供給每個(gè)工序設(shè)備所使用的空間。 The step of “space relationship diagram” (step 7) adds area size information into the relationship diagram from step 4. Additional design constraints and limitations are considered before the start of block layout generation in steps 8 and 9. Step 10 then develops layout alternatives as design candidates. Step 11 chooses the final design from these design candidates. 第七步“空間關(guān)系圖”通過(guò)第四步在車(chē)間設(shè)備相互關(guān)系圖中添加了空間面積信息。第十步形成多個(gè)備選方案。