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Meetings

Meeting with Luca

Ongoing page with all the Questions and new Chapter for new Meeting

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January Group Meeting⁠

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Luca Project Kickoff (29.2.)⁠

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Meeting 31.5

Questions

what about the registration of our Semesterthesis? Is it done already?

Servos and Bearings arrived?

Meeting 5.4

Questions

Anmeldung anstoßen ( jeder soll bei seinem Prüfungsausschuss Nachfragen) / to be do

wie bestellen wir unsere benötigten Sachen (wir bestellen und legen aus oder Lehrstuhl bestellt) - Lehrstuhl bestellt

PressureAardiono - Felix

Why sin function for h and tetta ?

Why h* enddimensionilzed with c (sehenenlänge) ?

Strouhal number at 0.3 / 0.4 why ? of does the Karman Vortex influence the thrust ?

Learnings

From Paper feedback

literature review → show overview of other flapping aquatic robots

prove 40% thrust increase experimentally

simulate efficiency gain from camber

show how turning might work (control schemes) (and provide experimentally)

Match angle of attack at beginning of stroke to flow

more simulation under different fluid parameters & conditions

Meeting 12.4

Notes

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Meeting 26.4

Tech implementation

does he have code for the SD card?

does he have battery/wall plug power consumption sensor?

does he have a waterspeed sensor / any best practice for it?

does he have a underwater noise sensor / any best practice for it?

will the Pro-Micro have enough ports? otherwise use ESP32 to avoid necessity for multiplexing

how to add connectors to the built board (pro micro with SD card, RC receiver, etc.)

Is there a sender for the rc to send messages from pc wirelessly? or only from handheld controller?

doesnt the implementation with servos waste energy? (for position holding...)

are there code style guidelines for his students?

[to Luca & predecessor][später mal]: fragen bezüglich Teststand, welche Parameter sollten wir testen #

how does it work with the paper exactly again? we write a section of it?

where are the other CAD files?

access to good 3D printer

When soldering workshop exactly?

what suggestions does he have for the lake testing platform? can we use an existing “boat”?

tell luca to send mails to d.gebhart@tum.de, not Daniel Häringer

Is this the conference we want to submit to?

no, overview of potential conferences:

http://ras.papercept.net/conferences/scripts/start.pl⁠

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publication of paper:

https://www.ieee-ras.org/publications/ra-l⁠

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Predecessor meeting!

how well did the servos work for them (strong enough), what would they change? How did they deal with the missing feedback / position control on the heave?

why NACA Profile, did he do any other analysis besides Matlab?

will the Pro-Micro have enough ports?

how is the cambering servo mounted?

what would you do next? what should we keep in mind?

Did you solder this Sparkfun board to the hx711?

Waterproofing best practices

kabel durchfädeln ist schwer

Er hat das T stück einfach mit Harz gefüllt

Silikonspray zum Waterproofing

Größerer heave Servo macht Sinn

Rollen weiter auseinander macht Sinn

Next Meeting Luca

Anmeldung

Was sollen wir abgeben (Abschlussbericht)

Was sollen wir ins Paper schreiben

Was sollen wir noch erreichen bis Abgabe (passt das so schon?)

Genauer Abgabetermin / Deadlines

Was brauchen wir noch an Research

Bestellungen

Shopping list:

Ball bearing

https://amzn.eu/d/iAT3E4e⁠

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Bigger servo:

https://amzn.eu/d/2EA3Fhq⁠

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Plastic bearings:

https://amzn.eu/d/dhc2pwk⁠

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Pitch servo:

https://amzn.eu/d/4nv0dj0⁠

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Camber servo?

https://amzn.eu/d/7zGdGJp⁠

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current list

GPS module:

https://amzn.eu/d/7hdmhTc⁠

cheap RC boat (for benchmarking)

Kevlar string

underwater sound sensors...

waterproof boxes for the boat:

https://amzn.eu/d/gMEyjyQ⁠

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RF transceivers (433Mhz or 2.4 Ghz?)

https://amzn.eu/d/7uECAVk⁠

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1 more spring scale for calibration of load cells (same weight as other one or 2 new ones)

https://amzn.eu/d/eAtnulf⁠

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Shopping list:

Shopping list:

Name

Qtd.

Link

Purpose

Status

Axial bearing

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https://amzn.eu/d/5RnGxE9

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Test Stand

recieved

INA219 Power sensor: (set of 2)

https://amzn.eu/d/auuXGqM

Efficiency Measurements

recieved

underwater sound sensors:

https://amzn.eu/d/3nCLbFI

Noise pollution measurement

ordered

Waterspeed sensors (set of 2)

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https://amzn.eu/d/c58VIyw

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measure water speed

recieved

5mm wood plates (set of 3)

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https://amzn.eu/d/fnLpZ23

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test stand levels

recieved

Optical encoders (set of 5)

https://amzn.eu/d/is8PpkG

measure robot state (e.g. servo positions)

recieved

Load cell 5kg (set of 2)

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https://amzn.eu/d/gwJBEOa

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Test stand

recieved (1 set)

HX711 amp (set of 6)

https://amzn.eu/d/bOyJDOX

Test stand

ordered

Servo extension cables (set of 10)

https://amzn.eu/d/dM3p4TZ

Faster prototyping, waterproofing of connections

recieved

April tags, custom printed stickers

https://www.wir-machen-druck.de/aufkleber-extrem-stark-klebend-40-farbig-bedruckt-mit-freier-groesse-rechteckig.html#content-view

Position measurement

recieved

There are no rows in this table

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