Title データ包絡分析法による設計改善案構築方法の提案
Contents
1. 50000 000000000 000000000000 0 920 8667 00000 0 2 40 20 02000000000000 761 0396 00000 2217 20 0000 000000000 000002. 0 3 2 000000000000 3 3 1 15 3 Table 1 based on child seat Child seat 0 05 crash test O Manual O Display O Mechanism O F itting O Fixing A 2 98 3 4 2 4 5 4 5 4 6 B 6 98 3 4 4 8 3 6 43 34 155 3 2 2 3 2 2 2 7 3 2 98 3 4 2 4 5 4 35 3 E 1 98 2 4 2 3 8 43 5 3 8 F 4 28 3 48 47 5 4 6 G 6 5 3 42 5 3 8 48 44 8 98 3 2 7 2 7 2 6 3 3 2 3 6 3 43 3 37 5 46 2 A a 2 point fix b 3 point fix Le c I SO FI X Fi 9 Sone fix 5 of child seat 4 2 0000000 000000000000 1 00 200000 03 0 0000 40000 5 00
3. s s min 0 Fx sS 22 Xmax 0 C 5206 23 0000000 xw 000000000000 gt X nin Xo S X 24 Yo 9266 25 26 00000000 D00000000000000000000000 000000 0 min lt Yo lt Y max 27 DO00000000000000000000000 D00000000000000000000000 o000000000000000000 3 3 000000000000000000 0 00000000 00000000 000000000 Ymin Ymax 28 oDo000000 000000000000000 D00000000000000000000000 D0000000000000000000 4 00000 20020 000000 130 000000000000000000000
4. 2 00000000 000000000 00 19781 00000 0 gA 08 000000 6 1 1 2 30000000000000000000000 000000000000000000 0000 90000000000000000000000 0000000000 0 00000000000 00000 0 000e Charnes Cooper 5 1000 0 Banker Char nes 080000000000 0000 1
5. 2 0 000000 2 1 1 gt 0 2 lt 0 3 gt 0 4 5 gt 0 6 50 7 8 000 100 0 00000 0 lt 10000000000600 000000 xO 000000000000000 xl 0 0000000000000000000 00000 00000 1 00 200 0 300000000 0 00000 8 0 9 Yo Y s 0 10 5 5 0 11 1
6. 00000 4 3 00000000 0000000 2 2 1 1 1 09 08 07 06 05 Efficiency BCC model 04 model 03 02 01 B H 1 Child seats Fi g 4 The efficiency of child seat 1 4 2 000000000000000 19 1900000 Table 2 Current and target status model A Current status Target by CCR Target by BCC Cost 298 24 2 98 Front crash test 35 _ 3 ___3 ___ 4 2 Display 4 5 Mechanism __ __ 41 ___ 4 5 4 6 Target by Cost 4 28 Front crash test j 3 Manual 47 4 8 Mechanism 47 Fitting 8 5 Fixing 46
7. 21 3 5 0 5 000000000000 4 65 6290 0 19991 416 423 0000000000000 067 656 0 20011 0 1202 1209 199408 000000 000 et al m amp Adapti Range gori thns nith Data Envel 5 Col lecti of Techni cal Papers 7th Mi
8. 000000000000000000600 00003 200000000000000000 0000 22 0 0 230 000000000000 250 00 2608 00000000 3 00000 00000 000000 2 40 2 98 000000000000 3 4 5 0000000 0000000000800 000000 3 000 5
9. Cost 3 24 Front crash test 3 4 Display 4 56 4 7 Mechanism 4 14 4 2 O 40 0 0 00 2 000000000000 000000 10000000 0 0 000000 4 4 2 00000 3 3
10. 000 0000000000000 000000 Output Frontier of BCC 1 D of frontier between and BOC 0000100000005 0000000 0000000000000 0600 00000 00000 000000AG D E000 0 0 0 Bd 00 12 00000000 13 0000000 eyi 0 00000000000 000 4000 14 k0x gt 0 15 lt 0 16 gt 0 17 000 00 8 2 2 000000 0000000000000 00 0000000 0 0000000000
11. 5 1 4 6 00000000000 00000000 5 4 0 0 20000000000000 10 0000000000000 0000 400 Table 4 Result diffrent front crash test score Child seat Target by BCC E E p _ 04000000H ea Bq 0000 150 5
12. 00000000000 5 18 o S 19 00000000000 Sx Xo Xog 20 5 2 21 0 000000 3 0000 0000 010 000000600 1 000000 3 1 DO0O00000000000 000000 1000000000000 000000 0 000000000 0000000000 19 19000000 20 2 00000000000000000000600 0000000 3 2 000000000 00000000 18 19
13. 55 2 4 1 000000 0 55 00000000 2 41 Displacement of head when crash happens Acceleration at head Damage of attachment for child seat Acceleration at chest Fig 2 Front crash test itens of child seat 1 5
14. T NAZAWA ITY WA di i 5 4 lt 4 3 00 00 00 00 00 00 000000000 70706 1955 1961 2005 Journal Article author http hdl handl e net 2297 2270 Tite Author s Citation Issue Date Type Text version URL Right http dspace lib kanazawa u ac jp dspace 0000 0000 0000 Proposal Design Improvement Instruction Data Envelopment Analysis Case with application to child seat Satoshi KITAYAMA Masao ARAKAWA and Koetsu YAMAZAKI Department of Human amp Mechanical Systems Engineering Kanazawa University 2 40 20 Kodatsuno Kanazawa Ishikawa 920 8667 Japan One of the important aspects in preliminary design is to make their products perform well without any imperfections when it spread out in the market Therefore we need to evaluate the products with the same kinds of products from many aspects These evaluations can regard as multi objective design optimization and most likely scalar methods are used such as the weighted sum method In these methods it is quite important to give optimal weight for each objective function so t
15. 4 6 Target by Cost 1 55 Front crashtest 3 3 2 2 Display 3 2 2 2 7 5 3 Target by Cost 2 3 2 98 Front crash test 3 4 2 4 5 Mechanism 4 a Fitting 5 Fixing O 3 44 O 4 6 E Target by BCC Cost 1 98 2 4 2 3 8 4 3 El 5 3 8 F Target by BCC Cost __428 24 4 Front crash test 3 4 7 4 8 4 7 5 Fixing 4 6 G Target by BCC Cost Oe o o 6 5 Front crashtest 3 3 4 2 5 Mechanism __40 __ 3 8 Fitting 4 8 Fixing 48 __ 44 H Target by BCC Cost 1 979 Manual 2 8 Display 3 59 2 6 Fitting 3 39 Fixing 3 48 Target Cost 3 24 Front crash test Display Mechanism Table 3 Itens and range of nprovenent A Cost Front crash test Display Mechanism Maximum 2 98 3 5 4 8 4 1 Minimum Maximum 4 28 3 8 4 7 4 7 5 0 A ajoja N gt 05 Front crash test Manual Mechanism Fitting Fixing Minimum Maximum Cost 1 55 1 6 Front crash test 31 Maximum Cost 2 98 Front crash test 3 1 Mechanism 4 2 Fitting Fixing F Cost Front crash test Fixing G Cost Front crash test Mechanism Fitting 4 6 Maximum 4 28 3 1 4 7 Maximum 6 5 3 9 4 0 5 0 A D w w ajajo N N Fixing 4 8 H Maximum Cost 1 7 1 98 Manual 8 Display 3 59 Fitting 3 39 Fixing 3 48
16. hat it fits with preference of the designers Moreover these optimal weights give us an important information of the improvements of design quantita tively In this paper we use data envelopment analysis DEA which can derive total evaluation and optimal weights from given datum from the products in the same kinds Hence we can derive the amount of improvement needed compared with the other products To examine the effectiveness of the proposed method we collect data of Ministry of Land Infrastructure and Transport Government of Japan in 2002 and evaluate many child seats From the results we could clarify a part of child seat which should be improved and showed its effectiveness through its considerations Key Words Data Envelopment Analysis Design Engineering Child seat assessment Optimum Design Multi Objective Optimization 1 00 000000 3 DOU HUDU DER EOD TEAD 000 00000000000000000000
17. l ti di sci pl i Anal ysis Q ti 3 1998 pp 2074 2082 66 643 1 20000 0 921 928 19930 0 0000 20003 000000 0 0 0 mit 5 def aul t htm http ww mit go j p pubcom 01 pubconk31 pubconk31_1 pdf http ww mit d 01 6 991109 ht m 221 228 2003 00 0000
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