Setting Up a Mechanical/Electrical Inertia Measurement of Propellerarm

In summary, George P. is seeking advice on how to set up a test stand to measure the relationship between rising thrust and inertia in a propellerarm for a flight robot. They are considering using a forcespring, pendulum, or camera with a timer, but are unsure of the best setup. They are also seeking clarification on the definition of "inertia" in this context and are designing a drone.
  • #1
Ginorizz0
2
0
TL;DR Summary
how to setup a teststand for rotating propellerarm with rising rpm of the propeller.
Hello Everybody
I'd like to set up a mechanical or electrical inertiameasurement of a Propellerarm that is in rotation, while the thrust (rpm of propeller) is rising.
Maybe with a forcespring, a pendulum, camera (timer)...
Not sure how to set it up nicely. Any suggestions?
Best
George P.
 
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  • #2
Welcome to PF. :smile:

Ginorizz0 said:
TL;DR Summary: how to setup a teststand for rotating propellerarm with rising rpm of the propeller.

Hello Everybody
I'd like to set up a mechanical or electrical inertiameasurement of a Propellerarm that is in rotation, while the thrust (rpm of propeller) is rising.
Maybe with a forcespring, a pendulum, camera (timer)...
Not sure how to set it up nicely. Any suggestions?
Best
George P.
Can you say more about what you are wanting to do? Is this for some sort of wind farm turbine, or for a wind tunnel, or for some other application? The more details you can provide, the better we can help you.
 
  • #3
Ty:)
The general question is: Does the rising thrust of the propeller change the inertia of the whole propellerarm.
Its about a flightrobot with omnidirectional abilities, but first i'll need to show experimentally the thrust to inertia-relation. In the end i'll actuate the arm with the right drive.
 
  • #4
Sorry, I'm still not clear on what you want to do. When you say the "thrust is rising", is it rising because you are increasing the motor power to the propeller? Or are you modulating the pitch of the propeller to increase the thrust? (or both?)

Also, can you please give a mathematical definition of what you mean by "inertia" in this context? I'm guessing you mean something other than the traditional definition of the Moment of Inertia...

Are you designing a drone?

Drones-strategy-2.0-FEATURED-image-LIGHT_0.png

https://www.easa.europa.eu/en/light/topics/drones
 

1. What is an inertia measurement of a propeller arm?

An inertia measurement of a propeller arm is a process used to determine the rotational inertia of a propeller arm, which is a measure of its resistance to changes in rotational motion. This measurement is important in designing and testing mechanical and electrical systems that utilize propeller arms.

2. How is a mechanical/electrical inertia measurement of a propeller arm set up?

The setup of a mechanical/electrical inertia measurement of a propeller arm involves attaching the arm to a rotating platform or shaft and then using sensors, such as accelerometers or gyroscopes, to measure the arm's rotational motion. The data collected from these sensors is then used to calculate the arm's inertia.

3. What are the benefits of conducting an inertia measurement of a propeller arm?

Conducting an inertia measurement of a propeller arm allows for the accurate determination of its rotational inertia, which is essential in designing and optimizing mechanical and electrical systems. This measurement can also help identify any imbalances or irregularities in the propeller arm, which can affect its performance and longevity.

4. What factors can affect the accuracy of an inertia measurement of a propeller arm?

The accuracy of an inertia measurement of a propeller arm can be affected by various factors, such as the precision and calibration of the sensors used, the stability of the rotating platform or shaft, and external forces or vibrations that may interfere with the measurement process.

5. Are there any safety precautions to consider when setting up an inertia measurement of a propeller arm?

Yes, there are safety precautions that should be taken when setting up an inertia measurement of a propeller arm. These include wearing proper protective gear, ensuring the equipment is properly secured and stable, and following all manufacturer's instructions and safety guidelines. It is also important to have a trained professional oversee the setup and measurement process.

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