alliance aerospace slat presentation
TRANSCRIPT
Alliance Aerospace Engineering
PROCESS Scanning 2 complete aircraft leading edge slat
skins on the 757 aircraft at the American Airlines located in Tulsa, OK.
Scan one complete set of leading edge slat skins from American Airlines inventory.
Alliance Aerospace Engineering
This system quickly brings physical parts into a digital domain with hand laser scanners that combine instant tracking performance with high speed, non-contact surface scanning.
Key Features: Instant Tracking of difficult geometries from
multiple angles.
Compact/Lightweight Scanner to reduce operator fatigue.
Large Measurement Volume to scan larger scale parts in single setup.
Measure difficult textures without powder or sprays, including mirror finishes.
Alliance Aerospace Engineering
SCANTRAK hand held laser scanner is lightweight, beamless, and has no
mechanical restrictions. Provides unlimited range
of motion for uninterrupted scanning.
Multi-Sided Probe (MSP) tracks, measures, and
scans with unlimited range of motion and no off-angle
limitations.
Dynamic Referencing Kit provides vibration compensation and
automatic alignment.
Polyworks modeler is a comprehensive modeling software
that enables a total interoperability between point cloud scanning equipment and
surface modeling.
Includes best fit alignment of individual scan sessions or
multiple scans into a single model.
Enables correcting imperfect digitized geometry using flat and
curvature based hole filling, boundary reconstruction, sharp edge and corner reconstruction.
Alliance Aerospace Engineering
Every morning, prior to scan, equipment must be calibrated. After letting the optics warm up for 30-45 minutes, the MSP was calibrated. This allows the system to calibrate as to the
orientation of the scanner.
After this, we calibrate how the Optical Tracker calculates the distance and location using a program called auto-scale. Using the previously calibrated MSP, we measure a certified 1000mm bar in different
positions.
Finally, we calibrate the laser scanner using a known sphere. This calibrates how the cameras in the scanner head calculate distance based off the projected laser line.
Alliance Aerospace Engineering
The task of getting all the equipment setup in preparation of scanning, was lengthy and took a large planning effort. The true challenge was figuring the correct setup to scan up to 25 feet in
the air.
First step was to setup the tracker on one Skyjack and the computer and scanner on the second Skyjack. (As shown above)
Alliance Aerospace Engineering
Second, the Skyjacks were positioned in such a way that the tracker would be able to see the entire part while
allowing the persons canning to reach all aspect without disturbing the line of sight between the tracker and the
scanner. This setup was variable from slat to slat.
The 5 and 6 slats provided an additional challenge for Skyjack positioning, as space is limited
between the engine and the fuselage.
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Thirdly, the ping pong balls and Dynamic Part Reference diodes were applied using hot glue. The ping pong balls allowed us to scan the part in two sections without
putting excessive stress on the computer during data acquisition. The DPR diodes create a coordinate system that is locked
to the part in case the slat tracker is moved.
Alliance Aerospace Engineering
Now that all is calibrated and setup, the scan may begin. The scanner provides a visual viewfinder and audible tone bursts so you can keep the scanner optimal difference from
the part.
Additionally, the computer provides real-time views of the scan data in relation to other data.
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The Polyworks Software scans each pass in a
different color. This allows you to see in real-time how
your data is overlapping and what areas are missing. You may also see below the
areas that still need to be scanned.
From the scanned data, we then create a high quality mesh and build simple,
dimension-able, geometry for our model based definition and drawings.
Alliance Aerospace Engineering
At this point, a fully usable, PMA worthy part is manufactured for the customer. By creating forming tools and machine fixtures, these parts can be produced at high quantities while maintaining 100% quality
and accuracy.
10-N30331 form tool and the Alliance Aerospace part during conformity.
Alliance Aerospace Parts Complete post manufacture.
Alliance Aerospace Engineering
Alliance Aerospace Engineering
Contact Info
Contact Info
Address: 185 Paularino Ave. Suite A
Costa Mesa, California USA 92626
Phone: (714) 760-9913
Email: [email protected]
Alliance Aerospace Engineering