fea summery report - indico-fnal (indico) · fea summery report (apa consortium meeting on march...

FEA Summery Report(APA Consortium Meeting on March 30, 2020)

Ang Lee

March 30, 2020

3/30/2020 Ang Lee FEA Summery for APA Consortium Meeting March 30 20201


APA Shipping Frame mainly Consists of :- S355 steel Tubing with S(yield)=355 MPa; Su=470 MPa.- Carbon steel plate. - AVM Shock Absorber.

2

Summery of FEA Analysis for APA Shipping Frame


The solid Model is provided by George Stavrakis in STEP file format.The ANSYS WB 19.2 is used for FEA analysis as shown above.

AVM Wire Shock Absorber

Steel Plate

Steel Tubing

3

Summery of FEA Analysis for APA Shipping Frame

Applicable Code used for FEA Analysis

• ASME BTH-1 Codes is used for the lifting device. It is recommended by

Compliance Office preliminary requirements_ Memorandum dated 2/11/2020 EDMS No.:2093094

for service class A.


Required (Safety factor) SF


ASME BTH-1 required

1) SF ≥ 2 for the structure member.

2) SF≥ 2.4 for the connections.

3) Above SF is respected to the yield

stress of the material in use.

4) The shipping frame is made of SS355

carbon steel, which has a yield stress of

355 MPa (~51.5 Ksi)

5) 7 (or more) possible configurations have

been analysed.

Position 1 _ Stress (MPa)SF=355/136.6=2.59>2

Above illustration is from Justin Freitag, January 24, 2020 report


FEA STRESS RESULT

6

Position 2 Stress MPaSF=355/155=2.29

(Just before to rotate)


3/30/2020

Two corner points

One point

Position 3 Stress (MPa)SF=355/119 .19> 2

Ang Lee FEA Summery for APA Consortium Meeting March 30 20208

Position 4 Vertical stress (MPa); SF=355/109.1>>2Finished 1st rotation (from Horizontal to Vertical)

F=31840 N=3249 Kg


Position 4 Vertical stress (MPa); SF=355/109.1>>2Finished 1st rotation (from Horizontal to Vertical)


Position 5 stress MPa; SF=355/122>>2 (Second rotation)


Position 6 Stress (MPa);SF=355/136>2(Just before the yellow sling to be picked up )


Position 7 Stress (MPa)SF=355/124>>2


Weld SIZE width effective width DY1 DX1 DY2 DX2 AREA IXX IYY IZZ Rmax Combine force Sy Su Sa

3.20 2.26 80.00 31.80 86.40 38.20 756.48 696362.60 186966.49 883329.09 47.23 355.00 470 235

absorber Fx Fy Fz Mx My Mz (MPa) Sz_n Sy+Sx_s Smx_n Smy_n Smz_s Sn_sub S_shear Scombined SF

1.00 2362.83 -379.05 -183.64 32262.48 116356.44 -65612.42 0.24 3.16 2.00 11.89 3.51 14.13 6.67 18.25 19.45

2.00 925.65 34.23 -58.02 5124.16 51015.98 3812.87 0.08 1.22 0.32 5.21 0.20 5.61 1.43 6.13 57.93

3.00 2290.47 356.49 -213.15 3918.29 111319.22 57474.44 0.28 3.06 0.24 11.37 3.07 11.90 6.14 15.95 22.25

4.00 2619.95 187.83 176.65 32023.23 -124420.65 -48150.49 0.23 3.47 1.99 -12.71 2.57 -10.49 6.05 14.82 23.95

5.00 800.30 -25.23 -0.75 4338.11 -46906.32 3054.12 0.00 1.06 0.27 -4.79 0.16 -4.52 1.22 4.99 71.11

6.00 2541.07 -152.60 287.06 -211.25 -111217.79 36098.92 0.38 3.37 -0.01 -11.36 1.93 -11.00 5.30 14.32 24.79

7.00 1957.98 362.94 -184.54 29659.31 -99773.77 -58138.58 0.24 2.63 1.84 -10.19 3.11 -8.11 5.74 12.83 27.67

8.00 488.75 -12.81 131.91 2317.57 -11263.05 1941.08 0.17 0.65 0.14 -1.15 0.10 -0.83 0.75 1.54 230.07

9.00 1974.86 -358.09 -224.78 285.63 -98673.23 55679.04 0.30 2.65 0.02 -10.08 2.98 -9.77 5.63 13.80 25.72

10.00 2122.59 -158.50 190.39 26492.99 101017.17 -40718.47 0.25 2.81 1.64 10.32 2.18 12.21 4.99 14.96 23.72

11.00 445.99 8.47 401.54 2188.83 14174.32 1901.71 0.53 0.59 0.14 1.45 0.10 2.11 0.69 2.43 146.08

12.00 2124.17 131.16 288.98 -1390.38 94385.06 33473.81 0.38 2.81 -0.09 9.64 1.79 9.94 4.60 12.74 27.86

Weld SIZE width effective width DY1 DX1 DY2 DX2 AREA IXX IYY IZZ Rmax

diagnal 3.20 2.26 24.15 31.80 28.67 36.32 273.64 34046.45 49815.70 83862.14 23.14

Fx Fy Fz Mx My Mz (MPa) Sz_n Sy+Sx_s Smx_n Smy_n Smz_s Sn_sub S_shear Scombined SF

1.00 1350.56 -662.96 -43.59 20764.97 62017.60 -38991.06 0.16 5.50 11.08 22.61 10.76 33.85 16.26 44.03 8.06

2.00 1192.64 704.06 105.10 -20509.72 56748.70 34131.59 0.38 5.06 10.94 20.69 9.42 32.02 14.48 40.67 8.73

3.00 1159.80 912.51 128.55 -18516.29 44280.42 -19752.49 0.47 5.39 9.88 16.14 5.45 26.49 10.84 32.47 10.93

4.00 1207.09 -898.73 145.27 16893.97 44617.25 20361.13 0.53 5.50 9.01 16.27 5.62 25.81 11.12 32.20 11.02

5.00 1571.30 -1460.81 -11.78 -25191.34 -59505.39 -41471.33 0.04 7.84 13.44 21.70 11.44 35.18 19.28 48.51 7.32

6.00 1598.74 1493.38 36.78 26847.63 -63074.30 40743.08 0.13 8.00 14.32 23.00 11.24 37.45 19.24 50.13 7.08

7.00 950.96 659.72 -158.01 17996.18 -45643.28 -15494.31 0.58 4.23 9.60 16.64 4.28 26.82 8.50 30.60 11.60

8.00 876.75 -725.91 14.58 -18501.06 -46826.69 19543.27 0.05 4.16 9.87 17.07 5.39 27.00 9.55 31.66 11.21

top section of beam lifting

Weld SIZE width effective width DY1 DZ1 DY2 DZ2 AREA IZZ IYY IXX Rmax

3.2 2.2624 62.285 50.8 66.8098 55.3248 532.1608 351962.76 262352.1121 614314.8739 43.3716 SF

Fx Fy Fz Mx My Mz (MPa) Sx_n Sy+Sz_s Smz_n Smy_n Smx_s Sn_sub S_shear Scombined SF

1 -15150.53 10911.00 25.77 -1687.64 7775.42 2869.80 28.47 20.50 0.27 0.82 0.12 29.56 20.62 46.37 7.66

2 -15616.79 -11259.76 27.90 -4005.30 10783.18 -220.91 29.35 21.16 0.02 1.14 0.28 30.50 21.44 48.06 7.39

3 493.45 370.73 32.70 1678.50 -2133.93 6598.43 0.93 0.70 0.63 0.23 0.12 1.78 0.82 2.27 156.13

4 -20.99 33.24 23.12 -3290.00 -1150.49 10045.53 0.04 0.08 0.95 0.12 0.23 1.11 0.31 1.24 287.31


Vertical 3.20 2.26 63.50 31.80 68.02 36.32 451.69 274321.53 101537.40 375858.92 38.56


1.00 1528.07 191.82 -1567.77 7116.42 -43164.26 76936.65 5.73 5.63 3.80 15.74 21.23 25.26 26.86 52.93 6.71

2.00 1488.87 -324.49 235.90 9772.77 -65458.94 -78614.24 0.86 5.57 5.21 23.87 21.69 29.94 27.26 55.91 6.35

3.00 1289.66 160.19 -1392.81 19727.50 -29476.86 115943.10 5.09 4.75 10.52 10.75 31.99 26.36 36.74 68.88 5.15

4.00 1370.41 -395.85 -183.95 -10814.17 -52893.22 -123381.91 0.67 5.21 5.77 19.28 34.04 25.73 39.26 72.70 4.88

5.00 1531.25 -513.36 -1815.05 21828.98 41452.99 89856.23 6.63 5.90 11.64 15.11 24.79 33.39 30.70 62.78 5.65

6.00 1544.98 725.83 -200.74 -11282.29 69041.45 -91115.84 0.73 6.24 6.02 25.17 25.14 31.92 31.38 63.03 5.63

7.00 1186.09 -160.67 -1215.91 7177.40 30979.19 95417.73 4.44 4.37 3.83 11.29 26.33 19.57 30.70 56.66 6.27

8.00 1225.37 422.28 212.37 9330.60 47901.69 -99574.91 0.78 4.74 4.98 17.46 27.47 23.22 32.21 60.43 5.87

top section thicker plate


3.20 2.26 200.00 38.10 204.52 42.62 1118.30 0.00 0.00

Fx Fy Fz Mx My Mz (MPa) Sx_shear Sy+Sz_s Smz_n Smy_n Smx_s Sn_sub S_shear Scombined SF

1.00 31848.00 0.00 0.00 0.00 0.00 0.00 28.48 0.00 0.00 0.00 0.00 28.48 49.33 7.20

Weld stress at the vertical position


Weld SIZE width effective width DY1 DX1 DY2 DX2 AREA IXX IYY IZZ Rmax Combine force Sy Su Sa

3.20 2.26 80.00 31.80 86.40 38.20 756.48 696362.60 186966.49 883329.09 47.23 355.00 470 235

absorber Fx Fy Fz Mx My Mz (MPa) Sz_n Sy+Sx_s Smx_n Smy_n Smz_s Sn_sub S_shear Scombined SF

1.00 2362.83 -379.05 -183.64 32262.48 116356.44 -65612.42 0.24 3.16 2.00 11.89 3.51 14.13 6.67 18.25 19.45

2.00 925.65 34.23 -58.02 5124.16 51015.98 3812.87 0.08 1.22 0.32 5.21 0.20 5.61 1.43 6.13 57.93

3.00 2290.47 356.49 -213.15 3918.29 111319.22 57474.44 0.28 3.06 0.24 11.37 3.07 11.90 6.14 15.95 22.25

4.00 2619.95 187.83 176.65 32023.23 -124420.65 -48150.49 0.23 3.47 1.99 -12.71 2.57 -10.49 6.05 14.82 23.95

5.00 800.30 -25.23 -0.75 4338.11 -46906.32 3054.12 0.00 1.06 0.27 -4.79 0.16 -4.52 1.22 4.99 71.11

6.00 2541.07 -152.60 287.06 -211.25 -111217.79 36098.92 0.38 3.37 -0.01 -11.36 1.93 -11.00 5.30 14.32 24.79

7.00 1957.98 362.94 -184.54 29659.31 -99773.77 -58138.58 0.24 2.63 1.84 -10.19 3.11 -8.11 5.74 12.83 27.67

8.00 488.75 -12.81 131.91 2317.57 -11263.05 1941.08 0.17 0.65 0.14 -1.15 0.10 -0.83 0.75 1.54 230.07

9.00 1974.86 -358.09 -224.78 285.63 -98673.23 55679.04 0.30 2.65 0.02 -10.08 2.98 -9.77 5.63 13.80 25.72

10.00 2122.59 -158.50 190.39 26492.99 101017.17 -40718.47 0.25 2.81 1.64 10.32 2.18 12.21 4.99 14.96 23.72

11.00 445.99 8.47 401.54 2188.83 14174.32 1901.71 0.53 0.59 0.14 1.45 0.10 2.11 0.69 2.43 146.08

12.00 2124.17 131.16 288.98 -1390.38 94385.06 33473.81 0.38 2.81 -0.09 9.64 1.79 9.94 4.60 12.74 27.86

Absorber has 12 weld connections



BTH equation (3-37)

> 2.4 (per ASME BTH -1 requirement)

15

Diagnal beam connection


diagnal 3.20 2.26 24.15 31.80 28.67 36.32 273.64 34046.45 49815.70 83862.14 23.14


1.00 1350.56 -662.96 -43.59 20764.97 62017.60 -38991.06 0.16 5.50 11.08 22.61 10.76 33.85 16.26 44.03 8.06

2.00 1192.64 704.06 105.10 -20509.72 56748.70 34131.59 0.38 5.06 10.94 20.69 9.42 32.02 14.48 40.67 8.73

3.00 1159.80 912.51 128.55 -18516.29 44280.42 -19752.49 0.47 5.39 9.88 16.14 5.45 26.49 10.84 32.47 10.93

4.00 1207.09 -898.73 145.27 16893.97 44617.25 20361.13 0.53 5.50 9.01 16.27 5.62 25.81 11.12 32.20 11.02

5.00 1571.30 -1460.81 -11.78 -25191.34 -59505.39 -41471.33 0.04 7.84 13.44 21.70 11.44 35.18 19.28 48.51 7.32

6.00 1598.74 1493.38 36.78 26847.63 -63074.30 40743.08 0.13 8.00 14.32 23.00 11.24 37.45 19.24 50.13 7.08

7.00 950.96 659.72 -158.01 17996.18 -45643.28 -15494.31 0.58 4.23 9.60 16.64 4.28 26.82 8.50 30.60 11.60

8.00 876.75 -725.91 14.58 -18501.06 -46826.69 19543.27 0.05 4.16 9.87 17.07 5.39 27.00 9.55 31.66 11.21



> 2.4 (per ASME BTH -1 requirement)

Connection at the vertical beam


Vertical 3.20 2.26 63.50 31.80 68.02 36.32 451.69 274321.53 101537.40 375858.92 38.56


1.00 1528.07 191.82 -1567.77 7116.42 -43164.26 76936.65 5.73 5.63 3.80 15.74 21.23 25.26 26.86 52.93 6.71

2.00 1488.87 -324.49 235.90 9772.77 -65458.94 -78614.24 0.86 5.57 5.21 23.87 21.69 29.94 27.26 55.91 6.35

3.00 1289.66 160.19 -1392.81 19727.50 -29476.86 115943.10 5.09 4.75 10.52 10.75 31.99 26.36 36.74 68.88 5.15

4.00 1370.41 -395.85 -183.95 -10814.17 -52893.22 -123381.91 0.67 5.21 5.77 19.28 34.04 25.73 39.26 72.70 4.88

5.00 1531.25 -513.36 -1815.05 21828.98 41452.99 89856.23 6.63 5.90 11.64 15.11 24.79 33.39 30.70 62.78 5.65

6.00 1544.98 725.83 -200.74 -11282.29 69041.45 -91115.84 0.73 6.24 6.02 25.17 25.14 31.92 31.38 63.03 5.63

7.00 1186.09 -160.67 -1215.91 7177.40 30979.19 95417.73 4.44 4.37 3.83 11.29 26.33 19.57 30.70 56.66 6.27

8.00 1225.37 422.28 212.37 9330.60 47901.69 -99574.91 0.78 4.74 4.98 17.46 27.47 23.22 32.21 60.43 5.87



> 2.4 (per ASME BTH-1 requirement)

Connection at the top

top section of beam lifting


3.2 2.2624 62.285 50.8 66.8098 55.3248 532.1608 351962.76 262352.1121 614314.8739 43.3716

Fx Fy Fz Mx My Mz (MPa) Sx_n Sy+Sz_s Smz_n Smy_n Smx_s Sn_sub S_shear Scombined SF

1 -15150.53 10911.00 25.77 -1687.64 7775.42 2869.80 28.47 20.50 0.27 0.82 0.12 29.56 20.62 46.37 7.66

2 -15616.79 -11259.76 27.90 -4005.30 10783.18 -220.91 29.35 21.16 0.02 1.14 0.28 30.50 21.44 48.06 7.39

3 493.45 370.73 32.70 1678.50 -2133.93 6598.43 0.93 0.70 0.63 0.23 0.12 1.78 0.82 2.27 156.13

4 -20.99 33.24 23.12 -3290.00 -1150.49 10045.53 0.04 0.08 0.95 0.12 0.23 1.11 0.31 1.24 287.31

top section thicker plate


3.20 2.26 200.00 38.10 204.52 42.62 1118.30 0.00 0.00

Fx Fy Fz Mx My Mz (MPa) Sx_shear Sy+Sz_s Smz_n Smy_n Smx_s Sn_sub S_shear Scombined SF

1.00 31848.00 0.00 0.00 0.00 0.00 0.00 28.48 0.00 0.00 0.00 0.00 28.48 49.33 7.20



SF>>2.4 required by ASME BTH-1

18

Comments/Discussion

• The shipping frame itself looks very adequate to satisfy the

BTH requirement.

• The weld design between the thicker plate (50 mm) and the

thin tubing wall(3.2 mm) needs to be refined and addressed

properly to meet the ASME BTH-1 requirement. It is working in

progress among the group members (George, Peter and

others).

• Looking into attachment plate connection.


Attachment Plate

Connection Study _ Part IIAng Lee

March 19, 2020


Attachment Plate

Connection area


M16 to M20 adaptor

79.6x50.8x12.7 mm SS 304 plate welded to APA tubing

M16 bolt SS 304(per Peter Sutcliffe)

Thread connection

Thread connection

21

Sketch from

NP79-01-03


GRAVITY LOAD IS HOLD BY THESE TWO PLATE_ LOWER SECTION

1 G load

1 G load =7659 N for one APA frame weight

6 absorber plates:Each of them is connected by THREEE springs with Kx, Ky and Kz , provided by Jake and Dan (PSL). THANK YOU!The spring stiffness is as follows:

X = 726 kN/mY = 726 kN/mZ = 2.742 MN/m


Top bracket is a “SLIP JOINT_SLIDING

23


The deflection of APA frame is about 4.5-2.5=~2 mm The vertical tubing has moved downward 1.66~1.9 mm (more like translation due to the spring attachment).It is consistent with X=7659 N/(726e3*6)=~1.75 mm (Good agreement !)

24

The FEA model indicates the stress is below ~125 Mpa << 355 MPa



Check the weld stress

W

e

l

d

S

I

Z

E

widtheffective

widthDX1 DZ1 DX2 DZ2 AREA IZZ IXX IYY Rmax

3.20 2.26 62.29 38.10 66.81 42.62 474.70 292083.22 144104.52 436187.74 39.62

Fx Fy Fz Mx My Mz (MPa) SY_nSx+Sz_

sSmz_n Smy_S Smx_N Sn_sub S_shear

Scombin

edSF

1

.

0

0

-2.53 -4130.60 -77.65 532030.00 -1347.90 53473.00 8.70 0.16 6.12 0.12 78.68 93.50 0.29 93.50 3.80

2

.

0

0

-10.71 -3554.30 -68.19 468380.00 6140.90 -99012.00 7.49 0.15 11.32 0.56 69.27 88.08 0.70 88.09 4.03

26


SS 304 Syield=205 MPa minSu=515 MPa min

M16X2 Bolt stress (MPa) SF=205/73=2.82

Adaptor (MPa) SF=205/72=2.85

27


S355 carbon steelSyield=355 MPa min

Attachment plate S355; SF=355/88.68=4

28

DYNAMICS AND MODAL ANALYSIS

FOR APA FRAME


APA Frame _Modal Analysis

From “Design recommendations for APA transport frame and detector” by M. ZIMBRU, J-L. GRENARD, O. BELTRAMELLO (CERN)

APA Shipping Box Update (17-03-2020) :

The dynamic analyses of the APA detector inside the APA frame should be analysed in 3 steps

1. Modal analysis:

A modal analysis is required to check the decoupling of the APA detector and the APA frame.

Required:

• Eigenfrequencies + principal modal masses in the 3 directions of the APA detectors constrained at his interface with the APA frame.

The calculation should be run from 0 to 100 Hz or at least until we reach 90 % of the total mass.

• Eigenfrequencies + principal modal masses in the 3 directions of the APA frame + attenuator constrained at his interface with the truck. APA mass is modelled as asingle mass at COG.


• Eigenfrequencies + principal modal masses in the 3 directions of the APA frame + attenuator + APA detector constrained at his interface with the truck.


The attenuator stiffness in all 3 direction are mandatory for these analyses.


APA Frame _FEA model (loading and boundary condition)

FEA mass reaction =576.6 kg (~99.7%)

Ang Lee FEA Summery for APA Consortium Meeting March 30 20203/30/2020

1 G

Information provided by Daniel Wenman (PSL)

31

APA Frame _Modal Analysis _Model A

Mode 1 fn=11.76 Hz (in/out) mode shape is mostly perpendicular to the frame.

RATIO EFF. MASS TO TOTAL MASS

MODEFREQUENCY

(HZ)X Y Z

1 11.7861 2.00E-09 4.01E-06 0.387169

2 16.6865 1.28E-07 4.45E-01 3.54E-08

3 16.9827 4.82E-09 8.86352E-06 4.82E-06

4 28.7198 3.44E-08 3.03E-06 2.42E-01

5 34.5217 3.16E-08 6.96E-06 0.0339109

6 38.8151 9.22E-06 9.01E-07 3.85E-02

7 40.7882 3.80E-07 4.97E-03 3.35E-05

8 41.4788 4.15E-07 2.01E-07 6.35E-06

9 45.1899 7.82E-05 3.99E-07 6.54E-02

10 50.7935 0.443764 6.50E-07 4.68E-06

11 59.3438 6.61E-07 8.60E-06 7.53E-03

12 63.6246 2.27E-06 2.17E-05 1.02E-02

13 64.2536 3.35E-08 1.78E-01 3.92E-07

14 66.4298 7.05E-07 3.62E-08 2.01E-08

15 78.1044 1.25E-07 1.10E-01 1.49E-07

16 81.0604 5.13E-08 1.70E-08 7.05E-07

17 88.458 4.12E-07 3.07E-07 5.39E-02

18 92.9942 2.37E-08 1.83E-07 2.43E-03

19 97.8719 3.67E-08 0.164955 3.76E-07

20 109.005 2.28E-10 6.81E-09 3.47E-02

21 114.115 3.93E-09 7.74E-04 1.21E-08

22 117.425 2.58E-08 6.55E-09 2.44E-07

23 132.484 9.66E-08 2.90E-09 6.96E-08

24 133.261 4.58E-08 2.77E-08 2.91E-07

25 139.231 2.12E-08 1.91E-08 1.37E-02

26 156.431 3.36E-07 3.86E-07 5.02E-08

27 165.545 6.18E-07 2.42E-05 6.82E-08

28 165.731 7.75E-12 1.65E-02 6.06E-07

29 169.65 9.34E-08 4.15E-07 2.63E-02

30 185.552 7.58E-04 1.43E-08 3.22E-06

----- --------------- ------------------- ------------------- -------------------

sum 0.444616 0.920486 0.915319


APA Frame _Modal Analysis _Model A

Mode 3 fn=16.9827 Hz. mode shape mostly is in twist motion.

RATIO EFF. MASS TO TOTAL MASS

MODEFREQUENCY

(HZ)X Y Z

1 11.7861 2.00E-09 4.01E-06 0.387169

2 16.6865 1.28E-07 4.45E-01 3.54E-08

3 16.9827 4.82E-09 8.86352E-06 4.82E-06

4 28.7198 3.44E-08 3.03E-06 2.42E-01

5 34.5217 3.16E-08 6.96E-06 0.0339109

6 38.8151 9.22E-06 9.01E-07 3.85E-02

7 40.7882 3.80E-07 4.97E-03 3.35E-05

8 41.4788 4.15E-07 2.01E-07 6.35E-06

9 45.1899 7.82E-05 3.99E-07 6.54E-02

10 50.7935 0.443764 6.50E-07 4.68E-06

11 59.3438 6.61E-07 8.60E-06 7.53E-03

12 63.6246 2.27E-06 2.17E-05 1.02E-02

13 64.2536 3.35E-08 1.78E-01 3.92E-07

14 66.4298 7.05E-07 3.62E-08 2.01E-08

15 78.1044 1.25E-07 1.10E-01 1.49E-07

16 81.0604 5.13E-08 1.70E-08 7.05E-07

17 88.458 4.12E-07 3.07E-07 5.39E-02

18 92.9942 2.37E-08 1.83E-07 2.43E-03

19 97.8719 3.67E-08 0.164955 3.76E-07

20 109.005 2.28E-10 6.81E-09 3.47E-02

21 114.115 3.93E-09 7.74E-04 1.21E-08

22 117.425 2.58E-08 6.55E-09 2.44E-07

23 132.484 9.66E-08 2.90E-09 6.96E-08

24 133.261 4.58E-08 2.77E-08 2.91E-07

25 139.231 2.12E-08 1.91E-08 1.37E-02

26 156.431 3.36E-07 3.86E-07 5.02E-08

27 165.545 6.18E-07 2.42E-05 6.82E-08

28 165.731 7.75E-12 1.65E-02 6.06E-07

29 169.65 9.34E-08 4.15E-07 2.63E-02

30 185.552 7.58E-04 1.43E-08 3.22E-06

----- --------------- ------------------- ------------------- -------------------

sum 0.444616 0.920486 0.915319

Mode 2: fn=16.686 Hz (up/down).The mode shape is mostly parallel (in plane) to the frame.


THESE RESULTS WILL BE PART OF IMPUT INFORMATION FOR THE AVM VENDOR TO DESIGN A SUITABLE SHOCK ABSORBER

33

Summery/Discussion

• We’ve done a lot of FEA analysis works in a short period of the time.

• Results so far indicates that APA shipping frame is well designed in terms of the

its structural strength per ASME BTH requirement.

• The analysis work will be continuously iterated/updated as the current design

progressing (ex: once the shock absorber is defined; the weldment around the

thick/thin plates has been finalized; and others modifications needed).

• It is truly a TEAM WORK! Thank You All!


fea summery report - indico-fnal (indico) · fea summery report (apa consortium meeting on march...

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