Linear Spring Calculations
Definition: The calculation of the formulas which make up a linear spring design.
Linear spring calculations can be a hard task if you do not have all of the proper information needed. You must have the correct formulas and all of the information needed to fill in those formulas. Once you have gathered that information, you may actually begin the linear spring calculations. With our linear spring calculator, Spring Creator, you are able to calculate all of your linear spring’s physical dimensions, travel and load capacities, and even factors that are helpful for the manufacturing phase of your spring like spring index.
Spring Creator allows you to calculate your spring design using only a few of your linear spring’s dimensions. The diagram at the bottom shows the example of a compression spring. The formula provided to calculate rate may be used in two scenarios:
1.) You have a linear spring and you already know how much load will make it travel down to a required loaded height but aren’t sure of the rate.
2.) You do not yet have a linear spring and are starting a design but aren’t sure how strong it needs to be in terms of spring rate.
In both of these examples, you will need to know the formula provided below and in the diagram at the bottom. You must divide the load being applied by the amount of deflection. The result of this linear spring calculation is the linear spring rate.
Linear Spring Rate Formula:
Rate (k) = Load (F) ÷ Travel (x)
k = F ÷ x
Linear Compression Spring Example:
Load: 10 pounds
Deflection: 2 inches
k = 10 ÷ 2
k = 5
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