- Project plans
- Project activities
- Legislation and standards
- Industry context
- Specialist wikis
Last edited 02 Dec 2020
Tension springs v torsion springs
Although sounding similar, tension and torsion springs are completely different. Tension springs are manufactured to operate with tension; as tightly wound coils, they stretch to a specific length as torque is applied to them. When in an unloaded position, the spring loops are touching with either a hook or a loop that is attached at one of the ends. The springs stretch when this attachment is directed with force. The springing action is caused when the components are pulled apart and the springs attempt to hold themselves together. After the force is stopped, they return to their original position.
Torsion springs are coiled springs, which work due to a twisting or torsion rotational motion. This allows for an object to store mechanical energy as it is twisted, exerting force in the opposite direction depending on the angle that it is twisted. A helical looped design is the most common design for torsion springs, which consists of a coiled metal wire that is twisted tighter and tighter by sideways forces that are applied on either a left-hand or a right-hand helix.
Most springs follow Hooke’s Law of elasticity, which states that the extension of an elastic rod is linearly proportional to the force, or torque, used to stretch it. The law is held approximately when the deformation is considered to be small in comparison to the overall length of the rod. The equation used to represent the force of a fully compressed spring is the following:
E – is Young’s modulus
d – is the spring wire diameter
L – is the free length of the spring
n – is the number of active windings
v – is Poisson’s ratio
D – is the spring’s outer diameter
Torsion springs work by either twisting or torsion, in which they store mechanical energy when twisted. When they are twisted, the springs exert torque in the opposite direction in a proportional amount to the angle that they are twisted.
Uses of Tension Springs
Uses of Torsion Springs
--European Springs and Pressings Ltd 09:44, 25 Sep 2017 (BST)
Related articles on Designing Buildings Wiki
- Compression springs.
- Flat springs.
- Key qualities of springs.
- Spring materials.
- The importance of gas springs.
- Using springs in construction to prevent disaster.
- The Difference Between Tension and Torsion Springs
- The Multiple Uses of Compression Springs
- The properties of tension springs.
- Using Springs in Construction to Prevent Disaster
- Torsion Springs and Their Benefits
Featured articles and news
The contentious nature of claims associated with cladding, fire safety and EWS1 forms.
ECA comments on low-carbon heating systems initiative and Heat and Buildings Strategy.
Cinders and other forms of domestic rubbish created filth but also generated great wealth.
CIC 2050 Group requests input to find out priorities for future industry leaders.
IHBC publishes response to consultation.
Institute applauds funding initiatives but presses for additional retrofit and tax measures.
The switch from analogue to digital has begun.
The fourth industrial revolution is well underway.
Free online resource will offer guidance on conserving places and the planet during COP26.