Find Position of 2nd Node from Velocity of 1st: System of 3 Dampers

In summary, the problem involves a system of 3 dampers, with 2 in parallel and 1 in series, attached to a fixed surface. The question asks for the position of the second node when the velocity of the first node is known. By applying Newton's second law, the equivalent spring constant for the system is found to be 75000 N/m. Using this value and the given velocity, the position of the second node is calculated to be 1.33 x 10-5 m.
  • #1
c8lin13
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Homework Statement


there is a system of 3 dampers, attached to a fixed surface, with 2 dampers in parallel, and one that's in series to the other 2 which r attached to the fixed surface.
The equation asks if the velocity of the first node(node attached only to single damper) is a m/s, then what is the position of the second node(node between single dampr, and parallel dampers)

Homework Equations


Ca=500Ns/m
Cb=100Ns/m
Cc=150Ns/m
(Cb and Cc are in parallel))

The Attempt at a Solution


Ive tried applying Newtons second, but I am pretty sure that isn't right, or I am doing it wrong. The question I'm wondering about is (b), i also don't know how to start c, and d...so help with those would be great too
 

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  • #2
. a) Find the equivalent spring constant for the systemKeq = (Ca*Cb*Cc) / (Cb + Cc)Keq = (500*100*150) / (100 + 150)Keq = 75000 N/mb) Find the position of the second node given that the velocity at the first node is 0.1 m/sx2 = (1/Keq)*v1x2 = (1/75000)*0.1x2 = 1.33 x 10-5 m
 

FAQ: Find Position of 2nd Node from Velocity of 1st: System of 3 Dampers

What is the purpose of finding the position of the 2nd node from the velocity of the 1st in a system of 3 dampers?

The purpose of finding the position of the 2nd node from the velocity of the 1st in a system of 3 dampers is to determine the dynamic behavior of the system. This information can be used to design and optimize the system for better performance and stability.

How is the position of the 2nd node calculated from the velocity of the 1st in a system of 3 dampers?

The position of the 2nd node can be calculated using the equation: x2 = x1 + (v1/ω) * sin(ωt), where x2 is the position of the 2nd node, x1 is the position of the 1st node, v1 is the velocity of the 1st node, ω is the angular frequency of the system, and t is the time.

What factors can affect the accuracy of finding the position of the 2nd node from the velocity of the 1st in a system of 3 dampers?

The accuracy of finding the position of the 2nd node can be affected by various factors such as the damping ratio, stiffness of the dampers, external forces, and the initial conditions of the system. Additionally, any errors in measuring the velocity or position of the nodes can also impact the accuracy.

Can the position of the 2nd node be calculated without knowing the velocity of the 1st in a system of 3 dampers?

No, the position of the 2nd node cannot be calculated without knowing the velocity of the 1st node. The velocity is a crucial parameter in determining the position of the nodes in a dynamic system and is required in the calculation of the equation mentioned in question 2.

How can the information about the position of the 2nd node from the velocity of the 1st be applied in real-life systems?

The information about the position of the 2nd node from the velocity of the 1st can be applied in various real-life systems such as suspension systems in vehicles, vibration control systems in buildings, and shock absorbers in machinery. By understanding the dynamic behavior of the system, engineers can make necessary adjustments and improvements to enhance the performance and longevity of these systems.

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