When two helical springs are connected in parallel, their combined overall stiffness becomes_______________?
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Answer: C. double
Explanation
When helical springs are connected in parallel, their combined stiffness is the sum of individual rates. Connecting two identical springs in parallel shares the applied load equally between them. Each spring deflects by the same amount, resulting in a combined stiffness that is double. Spring stiffness measures the force required to produce a unit deflection in the component. Parallel spring arrangements increase overall load capacity for a given maximum deflection limit. Hooke law principles govern the linear elastic behavior of helical compression springs.
Automotive suspension systems use parallel spring setups to support heavy vehicle loads safely. Industrial clamping mechanisms utilize combined springs to achieve desired clamping forces. Mechanical designers calculate spring rates to ensure assemblies meet specific load requirements. Connecting springs in series would halve the stiffness, whereas parallel connection doubles it. Stating the combined stiffness remains the same ignores the additive nature of parallel forces. Spring combinations follow predictable mathematical rules, meaning stiffness is never unpredictable.
- Subject
- Engineering
- Category
- Mechanical Engineering
- Topic
- —
- Difficulty
- medium
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