Mechanical Resistance in a simple generator?

In summary, the person is building a generator and is worried about the mechanical resistance when adding a load. They are also worried about the cost of the software and whether it is Mac-compatible.
  • #1
Hypo
59
0
Hallo everyone!

I'd like to build a simple generator for a project.

Like this picture here:

http://www.interactives.co.uk/images/DSCN7717crr.JPG [Broken]

I have everything I need but one think keeps coming into mind... Mechanical resistance?(Not friction due to material's touching each other like the conventional generator.) I'm building a generator exactly the same as the one in the image. The mechanical resistance I'm worried about is when I'm actually adding a "load" to the generator can I feel a mechanical resistance? Do I have to add more mechanical energy from my hand?

If I'm applying simple mechanical energy from my hand when adding a load to the coils like a set of led's would I feel a mechanical difference by having a load or not?

Hope I'm making sense... All in all I'm asking about Mechanical resistance if there is a load" light bulb's or small motor" attached to it.

Thank you!
 
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  • #2
Yes, a load will increace the work required to turn the handle. However, you may or may not be able to feel it.
 
  • #3
Integral said:
Yes, a load will increace the work required to turn the handle. However, you may or may not be able to feel it.

Is there a way to avoid it? Or its inevitable?

How can I calculate that? I'd like to add more load's I'd like to calculate how much energy I need into work the extra load.

Thanks!
 
  • #4
The work required is the same as the wattage of the load, where do you think that work would come from?
Force times distance (and divided by efficiency) is wattage; so is resistance times current.
 
  • #5
Wow! What an awesome illustration. Sorry that I can't help as much as the others as to electromotive drag (or whatever it's called), but I do have to ask you about your software. I've heard of, and seen examples of, Solidworks and similar things before, but could never possibly afford them. Is there any chance that this is something less expensive (and Mac compatible)?
 
  • #6
wizwom said:
The work required is the same as the wattage of the load, where do you think that work would come from?
Force times distance (and divided by efficiency) is wattage; so is resistance times current.

The mechanical resistance was my main problem, Whats the name of this resistance electromotive drag? or what?


Danger said:
Wow! What an awesome illustration. Sorry that I can't help as much as the others as to electromotive drag (or whatever it's called), but I do have to ask you about your software. I've heard of, and seen examples of, Solidworks and similar things before, but could never possibly afford them. Is there any chance that this is something less expensive (and Mac compatible)?

hahaha! Thanks about that but I'm sorry I didn't make this illustration I just got it from google.
You could find a lot! Of good programs at a affordable price if you search for it and I grantee you its compatible with a Mac. Generally they state that. Thanks!
 
  • #7
The opposing force is called counter torque.
 
  • #8
Ah, got it, Hypo. Thanks for the tip.
If anyone thinks it hypocritical of me to have asked about this after having recommended Sourcforge to Gurudon for drawing software in a different thread, I must point out that the only stuff that they have of this nature is either in Beta or earlier version and/or not Mac-compatible. Believe me; I've downloaded a bunch of them.
 

1. What is mechanical resistance in a simple generator?

Mechanical resistance in a simple generator refers to the amount of external force or load that the generator must overcome in order to produce electricity. This can include factors such as friction, air resistance, and the weight of the generator's components.

2. How does mechanical resistance affect the performance of a simple generator?

Mechanical resistance can greatly impact the performance of a simple generator. The higher the resistance, the harder it is for the generator to produce electricity, resulting in a decrease in efficiency and output.

3. How can mechanical resistance be reduced in a simple generator?

There are several ways to reduce mechanical resistance in a simple generator. One common method is to lubricate moving parts to reduce friction. Additionally, using lighter materials and streamlining the design can also help reduce resistance.

4. Can mechanical resistance cause damage to a simple generator?

Yes, high levels of mechanical resistance can cause damage to a simple generator. If the resistance becomes too great, it can put strain on the generator's components and potentially lead to malfunctions or breakdowns.

5. How can mechanical resistance be measured in a simple generator?

There are various methods for measuring mechanical resistance in a simple generator, such as using a dynamometer or measuring the voltage and current output at different levels of resistance. It is important to regularly monitor and assess the resistance in order to maintain the generator's performance and prevent damage.

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