Hydraulics: Push Force vs Gravity Force?

In summary, the conversation discusses the relationship between hydraulic force and gravity when pushing a mass towards or away from the ground. It is determined that for "reasonable" loads, the force of the ram is much more significant than the effects of gravity. However, gravity does play a role in causing friction when lifting, but it does not directly apply force in this scenario.
  • #1
nb89
37
0
Just have a question about how hydraulics work...
When a hydraulic pushes a mass away from the ground, does it apply the same force as to when it pushes the same mass towards the ground? I'm wondering if gravity assists it when its pushing it towards the ground and therefore can apply a lower force. Is this right?
 
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  • #2
Of course.
 
  • #3
Gravity assists, of course, but for 'reasonable' loads it is insignificant compared to the force of the ram. If you're driving a 50kg pole into the ground with a 100 tonne ram, gravity really doesn't enter into the picture. On the other hand, a 1kg ram in the same situation would be much less noticeable in comparison to gravity.
 
  • #4
grAVITYH WILL cause friction here its only affects on the case of lifting
 

Related to Hydraulics: Push Force vs Gravity Force?

1. What is hydraulics and how does it work?

Hydraulics is a branch of science and engineering that deals with the study of liquids in motion. It involves the use of fluids, such as water or oil, to transmit power and create force. It works by utilizing the principles of Pascal's Law, which states that pressure applied to a confined fluid will be transmitted equally in all directions.

2. What is push force and gravity force in hydraulics?

Push force and gravity force are two types of forces that are commonly encountered in hydraulics. Push force, also known as compressive force, is the force applied by a fluid that is confined in a closed system. Gravity force, on the other hand, is the force exerted by gravity on objects due to their mass and the acceleration of gravity.

3. How do push force and gravity force affect each other in hydraulics?

In hydraulics, push force and gravity force are often opposing forces. Push force is used to create movement or lift objects, while gravity force pulls objects towards the earth. In hydraulic systems, the push force is typically used to overcome the gravity force and move objects in the desired direction.

4. What are some real-world applications of push force and gravity force in hydraulics?

Push force and gravity force are utilized in various applications in everyday life. For example, in car brakes, the push force of the brake fluid is used to overcome the gravity force of the vehicle and bring it to a stop. In construction equipment, such as cranes and excavators, push force is used to lift heavy objects, while gravity force helps to keep the equipment stable.

5. How can the relationship between push force and gravity force be calculated in hydraulics?

The relationship between push force and gravity force in hydraulics can be calculated using the formula F = P x A, where F is the force, P is the pressure, and A is the area. This formula is based on the principles of Pascal's Law, which states that the force applied by a confined fluid is directly proportional to the pressure and surface area of the confined fluid.

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