Aircarft: The Forces Working On It.


  I've been working on this posting for long time in my mind...sooo. I decide to post it,most of this posting are theories about the force that works on an airplane,since I've been very interested in aviation for the last 5 years ( I started to recognize planes and aviation things since elementary), I do hope that this posting will help me to understand more about airplanes.
  Part.1 
  Weight forces.

 The weight force of the aircraft is is influenced by the mass of the plane combined to the gravitational forces of the earth ( about 9,81 m/s2).
  That means that W=m.g
"the gravity is influenced by the sheer size of the planet!"
   This means that the vector of the force goes down.
  
  Part.2
  Lift forces.

 The lift force is caused by the wings of the plane. The wings airfoil structure allow the air to flow smoothly and generates lift because the layer below is slimmer than the upper side of the wings which contributes to higher pressure working on it, while the thicker upper layer allow the wind to move faster and then contributes lower pressure on the upper wings side. That means that the higher pressure below generates lifting force of the planes.






Part.3
 The thrust.

 The thrust is responsible for moving the aircraft forward while power generated from the engine of the aircraft . The lifting force itself rely on the thrust of the plane, while the plane's engine move the aircraft towards the wind, the Bernoulli's principle of airfoil works then creates lifting forces of the airplane.  This means that lift and thrust works together to ensure the aircraft flying while the drag and weight force is used to slow and downing the aircraft. 

the anatomy of a jet engine.


  Part.4
  The drag

  Drag is  the opposition of the thrust, while the thrust generates power to move the aircraft, drag is used to counter the thrust force. That mean that the higher the thrust working on an airplane, the higher the drag of the plane itself. To reduce drag, the plane rely on its streamlined body shape that allow the airflow to works smoother on the airplane surfaces, engineers also used weight saving materials for their plane such as titanium alloys for example. 
 
the equation of drag working on an airplane.

Comments

Post a Comment

Popular posts from this blog

Aircraft wing explained part.2

Image
..................... After we discovered how the shape of the wing's airfoil created lift force which were based on Bernoulli's principle and how to make use of it , now we take the next step of analyzing  how the shape and structure of the wing itself contributed on the performance of the aircraft, in which how the aerodynamic advantages and dis-advantages of each of the following shape and structure.   PART.2  "THE SHAPE"    W hen we talk about the aircraft wings shape, we are actually talking about the model of the wind flows that flows around it. As we know that to be an effective lift force, the wings must produce enough pressure on the underneath and smoother flow at the top of the wings, this however only focuses on the wings cutaway structure in a one sided point of view, this second part however will focuses on the stream flowing around the wings at the top point of view on an aircraft. To make it clear let me show you an example of top viewed...
Read more

Aircraft wing explained....

Image
PROLOG   Have you ever wonder what would an aircraft will be if the wings were absent?... why would a wing so important that various models of wings had been created through times...? or why would an aircraft engineer assemble's those aircraft with wings, which actually adding weight through out the aircraft..? we'll those question were running through my head every times, so I decide to search for answers. and here's it the answers.       " The design and analysis of the wings of aircraft is one of the principal applications of the science of  aerodynamics , which is a branch of  fluid mechanics . The properties of the airflow around any moving object can - in principle - be found by solving the  Navier-Stokes equations  of  fluid dynamics . However, except for simple geometries these equations are notoriously difficult to solve.   Fortunately, simpler explanations can be described." (source: wikipedia).   "Good ...
Read more