Questions on calculating material needed for lifting object

In summary, the conversation discusses using Helium or a mixture of Ammonia to create a floating sentry bot and determining the minimum amount of gas needed to reach the maximum height. The buoyancy force, density, and volume are mentioned, as well as the potential energy of gravity and the weight of the bot. It is suggested that active control may be needed to maintain a consistent height.
  • #1
DarkMage64
1
0
I am trying to make a floating sentry bot ; though, my plan was to use Helium or with a mixture of Ammonia. I want to find the minimum amount of gas in a balloon require to reach the max height the object should float. I know the buoyancy force is Density * Volmin * g : where the maximum potential energy of gravity is W*Hmax. I'm not sure if I am correct, but I would have to equate the Eg = Wgas correct?
 
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  • #2
For low heights, there is no relevant max height - either the thing will rise, or it will stay on the ground. You probably need some active control to keep it on the same height.

I know the buoyancy force is Density * Volmin * g
Right, and all three values are nearly height-independent for the first ~100m. The same is true for the weight of your bot, its weight is either below or above that value.
 

1. How do I calculate the weight of an object for lifting purposes?

To calculate the weight of an object, you will need to know the mass of the object and the acceleration due to gravity (9.8 m/s^2). Simply multiply the mass (in kilograms) by the acceleration due to gravity to get the weight (in Newtons).

2. How do I determine the lifting capacity of a crane or forklift?

The lifting capacity of a crane or forklift depends on several factors, including the strength of the machine, the length of the boom or lift, and the weight distribution of the load. It is important to consult the manufacturer's specifications and safety guidelines when determining the lifting capacity.

3. How do I calculate the center of gravity for an object?

To calculate the center of gravity for an object, you will need to know the weight and location of each component of the object. You can then use the formula: xcg = (w1x1 + w2x2 + ... + wnxn) / (w1 + w2 + ... + wn), where xcg is the center of gravity, w is the weight of each component, and x is the distance from the center of gravity to each component.

4. How do I determine the size and strength of lifting equipment needed for a specific object?

The size and strength of lifting equipment needed for a specific object will depend on the weight and dimensions of the object, as well as the location and method of lifting. It is important to consult a professional or use a lifting calculator to determine the appropriate equipment for the job.

5. How do I account for safety factors when calculating material needed for lifting an object?

When calculating material needed for lifting an object, it is important to account for safety factors to ensure the safety of workers and the stability of the load. This may include considering the weight distribution of the load, the strength of the lifting equipment, and any potential hazards in the lifting environment.

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