Knowledge-Based Structure Optimization Design for Boom of Excavator

Table 3

Detailed design code coding.

Code bits	Meaning	Units	Code value
			0	1	2	3	4	5	6	7	8	9	A	B	C	D
8	XLO/XB	%	≥58–61	>61–63	>63–64	>64–66	>66–68	>68–70	>70–72	>72–74	>74–76	>76–78	>78–80	>80–85	—	—
9	XLP/XB	%	≥80–82	>82–84	>84–86	>86–88	>88–90	>90–92	>92–96	>96–98	>98–100	>100–105	—	—	—	—
10	XHO/YB	%	≥95–99	>99–100	>100–105	>105–107	>107–110	>110–114	>114–118	>118–120	>120–124	>124–128	>128–132	>132–134	>134–138	>138–142
11	XLU/XB	%	≥40–47	>47–53	>53–57	>57–61	>61–65	>65–66	>66–71	>71–76	>76–79	>79–82	>82–86	>86–88	>88–90	>90–92
12	XLT/XB	%	≥84–86	>86–88	>88–91	>91–96	>96–98	>98–100	>100–102	>102–105	>105–110	>110–113	>113–114	>114–117	>117–123	>123–126
13	YHU/YB	%	≥18–21	>21–25	>25–30	>30–32	>32–36	>36–40	>40–44	>44–50	>50–55	>55–62	>62–68	>68–76	>76–79	>79–83
14	XCO	mm	≥80–100	>100–150	>150–200	>200–250	>250–300	—	—	—	—	—	—	—	—	—
15	XCI	mm	≥50–75	>75–100	>100–125	>125–150	—	—	—	—	—	—	—	—	—	—
16	XSR	mm	≥80–100	>100–150	>150–200	>200–250	>250–300	—	—	—	—	—	—	—	—	—
17	XFI	mm	≥50–75	>75–100	>100–125	>125–150	—	—	—	—	—	—	—	—	—	—
18	XTL	°	30	45	60	—	—	—	—	—	—	—	—	—	—	—
19	XDO	mm	≥50–75	>75–100	>100–125	>125–150	>150–200	—	—	—	—	—	—	—	—	—
20	XBO	mm	≥50–75	>75–100	>100–125	>125–150	—	—	—	—	—	—	—	—	—	—
21	XRF	mm	≥5–8	>8–12	>12–15	>15–20	>20–25	—	—	—	—	—	—	—	—	—
22	XWT	mm	≥5–8	>8–12	>12–15	>15–20	>20–25	—	—	—	—	—	—	—	—	—
23	XFT	mm	≥5–8	>8–12	>12–15	>15–20	>20–25	—	—	—	—	—	—	—	—	—
24	XTT	mm	≥5–8	>8–12	>12–15	>15–20	>20–25	—	—	—	—	—	—	—	—	—
25	XST	mm	≥5–8	>8–12	>12–15	>15–20	>20–25	—	—	—	—	—	—	—	—	—
26	XFS	mm	≥5–10	>10–15	>15–20	>20–25	>25–30	—	—	—	—	—	—	—	—	—
27	XSD	mm	≥200–250	>250–300	>300–350	>350–400	>400–450	>450–500	—	—	—	—	—	—	—	—
28	XSF	mm	≥200–250	>250–300	>300–350	>350–400	>400–450	>450–500	—	—	—	—	—	—	—	—

Notes: X_B = X_CB × cos∠BCF; Y_B = X_CB × sin∠BCF.