The spring constant
indicates the stiffness of the spring. The higher the spring constant (in units of newtons per meter), the stiffer the spring.
What is meant by stiffness of a spring?
Stiffness is the
extent to which an object resists deformation in response to an applied force
. The complementary concept is flexibility or pliability: the more flexible an object is, the less stiff it is.
How do you find the stiffness of a spring?
The force exerted by a spring on objects attached to its ends is proportional to the spring's change in length away from its equilibrium length and is always directed towards its equilibrium position.
F = -kx
. The proportional constant k is called the spring constant. It is a measure of the spring's stiffness.
What affects the stiffness of a spring?
When a coupling experiences a load in a direction that places it in tension or compression
, its spring stiffness comes into effect. This is usually described by using Hooke's Law. This law relates the force and displacement of a spring using its spring constant. This value varies for different materials.
What determines the spring constant?
The spring constant can be determined based on four parameters:
Wire diameter
: the diameter of the wire comprising the spring. Coil diameter: the diameter of each coil, measuring the tightness of the coil. Free length: the length of the spring when at rest.
Does the spring constant depend on how far the spring is stretched?
More generally, the spring constant of a
spring is inversely proportional to the length of the spring
, assuming we are talking about a spring of a particular material and thickness. … That is because the spring constant and the length of the spring are inversely proportional.
What happens if the spring constant increases?
A stronger spring-with a larger value of k-will move the same mass more quickly for a smaller period. As the spring constant k increases,
the period decreases
. … For a given mass, that means a greater acceleration so the mass will move faster and, therefore, complete its motion quicker or in a shorter period.
How do you reduce spring stiffness?
Changing the stiffness can be done by changing any or all of the variables that control spring stiffness. One easy way to do this is to
add a second identical spring in series with the existing spring
. You will get twice the travel and half the stiffness. Or just buy a different spring.
What is the relationship of frequency and spring stiffness?
A
stiffer spring increases natural frequency
(left). A more compliant (”softer”) spring decreases natural frequency (right).
What is equivalent spring stiffness?
Each of the individual spring supports part of the load attached to it but both the springs undergo same. deflection. Therefore the static deflection of the mass is, 9.3.2. Therefore if the springs are in parallel combination, the equivalent spring stiffness
is sum of individual stiffnesses of each spring
.
How does spring constant affect stiffness?
The spring constant, k, is
representative of how stiff the spring is
. Stiffer (more difficult to stretch) springs have higher spring constants. The displacement of an object is a distance measurement that describes that change from the normal, or equilibrium, position.
What is a normal spring constant value?
The normal spring constant value is
a measure of how much force has to be applied to cause a deflection of unit length at the free end of the
cantilever.
Does a stiffer spring have more elastic spring force?
A less stiff object can be stretched or compressed more easily. Comparing two elastic objects, more elastic spring
force would act on the stiffer elastic object
when they are stretched or compressed by the same length.
Does the thickness of the spring wire affects the spring constant?
Spring constant is a measure of the stiffness of the spring.
If the thickness of the wire is increased then the spring constant increases
. With an increase in the diameter of the coil of the spring constant decreases.
Does spring constant affect tension?
The slope of a straight line from the origin to the value of the load at the point S is the model spring constant k
1
. … A spring with a large
initial tension
would exert a larger restoring force for a given elongation than one with the same spring constant and small initial tension.
How do you calculate spring compression?
First, you calculate the wire length of one coil (cL) by multiplying the mean diameter by pi (3.14 or π). Then, to calculate the total compression spring wire length (tL), you must
multiply the wire length of one coil (cL) by the total amount of coils (N)
.
