OEM Design Definition Issues NAVAIR public release SPR-2014-342 - - PowerPoint PPT Presentation

▶

Aug 24, 2022 155 likes •408 views

OEM Design Definition Issues NAVAIR public release SPR-2014-342 Distribution A -- Approved for public release distribution is unlimited ISSC Engineering Team, FRCSW Code 43353 Presented 28 April 2014 Rick Mendoza 1 of 24 Synopsis

SLIDE 1

OEM Design Definition Issues

ISSC Engineering Team, FRCSW Code 43353 Presented 28 April 2014 Rick Mendoza

1 of 24

NAVAIR public release SPR-2014-342 Distribution A -- Approved for public release distribution is unlimited

SLIDE 2

Synopsis

Existing Manufacturing Process Requires

3D Solid Model for CAM Software.

– 2D, Blueprint Defined Engineering Data

2D-3D translation subject to Human error.
OEM Blueprint can incorrectly define Part.

– MBD Data

Can have quality issues
Can incorrectly define part

2 of 24

NAVAIR Public Release SPR-2014-341

SLIDE 3

3 of 24

Misinterpretation of the Blueprint

3D Model of Structural Former – Translated from 2D Blueprint

NAVAIR Public Release SPR-2014-341

SLIDE 4

4 of 24

Misinterpretation of the Blueprints

Actual Fuselage ML Theoretical Fuselage ML Location of Moldline discrepancy View Looking AFT View Looking FWD

NAVAIR Public Release SPR-2014-341

SLIDE 5

5 of 24

Misinterpretation of the Blueprints

After correcting solid model Prior to correcting solid model

Point cloud data

NAVAIR Public Release SPR-2014-341

SLIDE 6

6 of 24

Structural Former

Blueprint Errors – Missing information

NAVAIR Public Release SPR-2014-341

SLIDE 7

7 of 24

Blueprint Errors – Missing information

Nacelle Moldline Duct Moldline

NAVAIR Public Release SPR-2014-341

SLIDE 8

8 of 24 Trace Nacelle ML Trace Duct ML Trace Duct ML Trace Diverter ML

Actual ML

Blueprint Errors – Missing information

NAVAIR Public Release SPR-2014-341

SLIDE 9

9 of 24

Example of incorrect call-out on a blueprint

Missile Fairing ML Fin Dent ML (Correct)

Blueprint Errors – Wrong Information

NAVAIR Public Release SPR-2014-341

SLIDE 10

10 of 24

Blueprint Showed former

Approx. 0.190” lower

.190”

The change in height also affects the position of the flange

Blueprint Errors – Wrong Information

NAVAIR Public Release SPR-2014-341

SLIDE 11

11 of 24

Blueprint Errors – Wrong Information

Discovered after Aircraft Fuselage already spliced together Protrusion of Former prevented MLG Door from closing Required Cut and Splice repair after former installation Former Cut Area Repair Piece with Correct Mold Line

NAVAIR Public Release SPR-2014-341

SLIDE 12

12 of 24

Blueprint Errors – Wrong Information

Complete Splice Repair Installation

NAVAIR Public Release SPR-2014-341

SLIDE 13

13 of 24

Blueprint Errors – Conflicting information

Hinge Half Assembly

NAVAIR Public Release SPR-2014-341

SLIDE 14

14 of 24

Blueprint Errors – Conflicting information

B-

WING LWR OML WING REF PLANE

NAVAIR Public Release SPR-2014-341

SLIDE 15

15 of 24

Blueprint Errors – Conflicting information

Reproduction of Section View F-F After Correction

WING LWR OML WING REF PLANE

NAVAIR Public Release SPR-2014-341

SLIDE 16

16 of 24

Part Received from DLA Supply

NAVAIR Public Release SPR-2014-341

SLIDE 17

17 of 24

Vs.

MBD Quality Issues

NAVAIR Public Release SPR-2014-341

SLIDE 18

MBD Quality Issues

18 of 24

Detail

NAVAIR Public Release SPR-2014-341

SLIDE 19

Lacking Corner Radii Lacking Fillet Radii OEM MBD Detail This cannot be Manufactured without a CNC Programmer adjusting the tool-path.

MBD Quality Issues

19 of 24

NAVAIR Public Release SPR-2014-341

SLIDE 20

Correct Corner Radii Correct Fillet Radii

MBD Quality Issues

20 of 24

NAVAIR Public Release SPR-2014-341

SLIDE 21

21 of 24

Manufacturing Model Management System (3MS) Original blueprint Created from Model Interrogation

Check 1: Ensure Model is True to Blueprint

NAVAIR Public Release SPR-2014-341

SLIDE 22

Manufacturing Model Management System (3MS)

Check 2: Scan Aircraft Sample and Compare to Model

22 of 24

Neg Nom Pos Total Pct In Tolerance: 6354 70 6834 13258 41.86 Out of Tolerance: 8258 10154 18412 58.14 Failed Points: Total Points: 14612 70 16988 31670 100.00 DX DY DZ 3D Maximum Deviation: 0.2080 0.1840 0.3230 0.1050 Minimum Deviation:

0.0900
0.0870
0.2790
0.4120

Deviation Range: 0.2980 0.2710 0.6020 0.5170 Average Deviation: 0.0000 0.0000 0.0000 0.0050 RMS Deviation: 0.0080 0.0090 0.0240 0.0270 Standard Deviation: 0.0080 0.0090 0.0240 0.0260

NAVAIR Public Release SPR-2014-341

SLIDE 23

NAVAIR Public Release SPR-2014-341

SLIDE 24

Questions?

ISSC Engineering Team, FRCSW Code 43353 Presented 28 April 2014 Rick Mendoza

24 of 24

FRCSW 2D-3D Translation Control Documents

FRCSWINST 4790.4 FRCSWINST 13600.2

NAVAIR Public Release SPR-2014-341