CATCHYDrone Filter 1
CATCHY
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CATCHY
Overview
Where we are in the selection process, and the tools for each step.
Hardware team · Timeline
1Done
Filter 1
Maximum net size of each model · Compare the models on 6 criteria · Log why each rejected model was dropped
- Maximum net size of each model
- Compare the models on 6 criteria
- Log why each rejected model was dropped
2Current · due Wed 14 Oct
Filter 2
Model the drones in CAD to our defined size requirements · Add battery, flight controller, motors and sensors; calculate inertia and CoG; model the surface area as weight for a fixed material · Simulate the models based on their inertias · Risks of each drone in the different stages of flight · Which tests could be run · Serviceability, sensor mounting and other non-performance factors · Control surfaces: how to model them, and how they affect inertia · Density of the surface material
Converge on 5 designs
- Model the drones in CAD to our defined size requirements
- Add battery, flight controller, motors and sensors; calculate inertia and CoG; model the surface area as weight for a fixed material
- Simulate the models based on their inertias
- Risks of each drone in the different stages of flight
- Which tests could be run
- Serviceability, sensor mounting and other non-performance factors
To discuss
- Control surfaces: how to model them, and how they affect inertia
- Density of the surface material
3
Physical models
Cardboard mock-ups · Simple print of the mechanism
- Cardboard mock-ups
- Simple print of the mechanism
4
Review 1
Present the 5 models · Keep the remaining ideas ready for afterwards · Explain exactly how we arrived at these models
- Present the 5 models
- Keep the remaining ideas ready for afterwards
- Explain exactly how we arrived at these models
Software team · Timeline
Software team
No timeline yet. The software team's steps will be added here.
Tools
Drone Filter 1
Concept screening for drone capture designs: upload designs with their Net area / Projected area, compare them in pairs, filter the list and log why designs were rejected.
Drone Filter 2
3D layout of the remaining models: place the components, closed and opened, and get the mass, centre of mass and inertia of each.
Drone Filter 1
Concept screening for drone capture designs
Upload your concept with its Net area / Projected area, then compare the designs in pairs to narrow down the list.
Drone Filter 2
3D layout and weight distribution
Place the battery, sensors, motors and the capture mechanism of each remaining model in 3D, closed and opened, and see its mass, centre of mass and inertia.
Enter your first name
Use the same first name next time to continue where you left off.
Catalogue
All designs
Upload your concept with its Net area / Projected area, then compare designs side by side.
Reference · fixed wing
Projected area
Seen from the front, as if the fixed wing is flying straight at you: the wing as a thin strip with a triangular centre section on top. Units as on the sketch.
| Centre section (2 triangles) | 2 · ½ · 50 · 20 | 1000 |
| Wing | 100 · 5 | 500 |
| Adrone,proj | 1500 |
Reference · X-wing
Projected area
Seen from the front in flight configuration: a round body with four triangular fins. Fin length is measured from the body edge; the small overlap where the straight fin bases meet the round body is neglected. Units as on the sketch.
| Body (circle) | π · 15² | 706.9 |
| Fins (4 triangles) | 4 · ½ · 5 · 30 | 300 |
| Adrone,proj | ≈ 1007 |
Compare these two designs.
Pick the stronger design for each of the 4 factors. Net area / Projected area and novelty are shown for reference only.
How to rate
Add a note · optional
My comparisons
Group results
Filter the designs
Bookkeeping
Rejection log
Record which designs we drop after Filter 1 and why, in our own words. Note how the pipeline rated each one and where its scores and our judgement differ, and link the sources or papers behind the decision.
Not part of the rating. Recording a rejection does not change any score, ranking or comparison.
Group
Members
Everyone registered here. Admins can remove members who are not taking part.