以负荷为因变量Y ,以百分表示值自变量X ,
(2) 回归计算: (1)
n X (0.01mm ) 22 Y(N) XY X Y 1 54.1 5000 270500 2926.81 25×106 2 109.0 10000 1090000 11881.00 100×106 3 164.5 15000 2467500 27060.25 2254 221.2 20000 4424000 48929.44 4005 278.2 25000 6955000 77395.24 6256 336.8 30000 10104000 113434.24 900∑ 1163.8 105000 25311000 281626.98 2275=1163.8/6=193.9666667 =105000/6=17500
(∑X ∑Y)=1163.8×105000=122199000
(∑Y) 2=1050002=1.1025×1010 (∑X) 2=1163.82=1354430.44
2
L (1354430.44
XX =∑X 2-X )
n =281626.98-6=55888.5733
L 2(
YY =∑Y -Y ) 2
2275⨯106-1.1025⨯1010
n =6=437500000
L XY =∑XY -X Y
n =25311000-122199000
6=4944500
(3)计算b 、a
b =L XY
L =4944500
55888.5733=88.4706785≈88.47
XX
a =-=17500-88.47067845⨯193.9666667=339.6374093≈339.64
(4)回归方程
Y=a+bx=339.6374093+88.4706785x
(5)测力环系数C=88.47067845N/0.01mm
计算人:☆完美☆ 复核: 审核:
日期: 日期: 日期: ×106 ×106 ×106 ×106 ×106
以负荷为因变量Y ,以百分表示值为自变量X ,
(4) 回归计算: (3)
n X (0.01mm ) 22 Y(N) XY X Y 1 48.0 10000 480000 2304.00 10×107 2 96.2 20000 1924000 9254.44 40×107 3 145.1 30000 4353000 21054.01 90×107 4 193.4 40000 7736000 37403.56 160×107 5 243.4 50000 12170000 59243.56 250×107 6 293.7 60000 17622000 86259.69 360×107 ∑ 1019.8 210000 44285000 215519.26 910×107 =1019.8/6=169.9666667 =210000/6=35000
(∑X ∑Y)=1019.8×210000=214158000
(∑Y) 2=(210000)2=4.41×1010 (∑X) 2=(1019.8)2=1039992.04 L XX =∑X 2-
L YY =∑Y -2(X ) 2n =215519.26-1039992.04=42187.2533 6(Y ) 2
n 4.41⨯1010=910⨯10-=175⨯107 67
L XY =∑XY -X Y =44285000-214158000=8592000 n 6
(3)计算b 、a
b =L XY 8592000==203.6634132≈203.66 L XX 42187.2533
a =-=35000-203.6634132⨯169.9666667=384.00853≈384.01
(4)回归方程
Y=a+bx=384.01+203.66x
(5)测力环系数C=203.66N/0.01mm
计算人:☆完美☆ 复核: 审核:
日期: 日期: 日期:
以负荷为因变量Y ,以百分表示值自变量X ,
(2) 回归计算: (1)
n X (0.01mm ) 22 Y(N) XY X Y 1 54.1 5000 270500 2926.81 25×106 2 109.0 10000 1090000 11881.00 100×106 3 164.5 15000 2467500 27060.25 2254 221.2 20000 4424000 48929.44 4005 278.2 25000 6955000 77395.24 6256 336.8 30000 10104000 113434.24 900∑ 1163.8 105000 25311000 281626.98 2275=1163.8/6=193.9666667 =105000/6=17500
(∑X ∑Y)=1163.8×105000=122199000
(∑Y) 2=1050002=1.1025×1010 (∑X) 2=1163.82=1354430.44
2
L (1354430.44
XX =∑X 2-X )
n =281626.98-6=55888.5733
L 2(
YY =∑Y -Y ) 2
2275⨯106-1.1025⨯1010
n =6=437500000
L XY =∑XY -X Y
n =25311000-122199000
6=4944500
(3)计算b 、a
b =L XY
L =4944500
55888.5733=88.4706785≈88.47
XX
a =-=17500-88.47067845⨯193.9666667=339.6374093≈339.64
(4)回归方程
Y=a+bx=339.6374093+88.4706785x
(5)测力环系数C=88.47067845N/0.01mm
计算人:☆完美☆ 复核: 审核:
日期: 日期: 日期: ×106 ×106 ×106 ×106 ×106
以负荷为因变量Y ,以百分表示值为自变量X ,
(4) 回归计算: (3)
n X (0.01mm ) 22 Y(N) XY X Y 1 48.0 10000 480000 2304.00 10×107 2 96.2 20000 1924000 9254.44 40×107 3 145.1 30000 4353000 21054.01 90×107 4 193.4 40000 7736000 37403.56 160×107 5 243.4 50000 12170000 59243.56 250×107 6 293.7 60000 17622000 86259.69 360×107 ∑ 1019.8 210000 44285000 215519.26 910×107 =1019.8/6=169.9666667 =210000/6=35000
(∑X ∑Y)=1019.8×210000=214158000
(∑Y) 2=(210000)2=4.41×1010 (∑X) 2=(1019.8)2=1039992.04 L XX =∑X 2-
L YY =∑Y -2(X ) 2n =215519.26-1039992.04=42187.2533 6(Y ) 2
n 4.41⨯1010=910⨯10-=175⨯107 67
L XY =∑XY -X Y =44285000-214158000=8592000 n 6
(3)计算b 、a
b =L XY 8592000==203.6634132≈203.66 L XX 42187.2533
a =-=35000-203.6634132⨯169.9666667=384.00853≈384.01
(4)回归方程
Y=a+bx=384.01+203.66x
(5)测力环系数C=203.66N/0.01mm
计算人:☆完美☆ 复核: 审核:
日期: 日期: 日期: