Compression springs in automotive shock absorbers play a vital role in the suspension system, significantly reducing frame and body vibration for improved stability and ride comfort. Their design and material selection directly impact the shock absorber’s performance and lifespan.
Main Features
- Helical structure: Typically equal-pitch helix, with round, rectangular, or multi-stranded steel cross-sections for optimal axial pressure resistance.
- Varied shapes: Available in cylindrical, conical, mid-convex, and mid-concave designs to suit different performance needs.
- Energy absorption: Coil gaps allow springs to contract and deform under load, efficiently storing deformation energy for vibration damping.
- Low-frequency vibration isolation: Large static compression and low intrinsic frequency ensure excellent low-frequency vibration isolation.
- Resistant to erosion: Performance is unaffected by oil, water, or temperature changes, offering long-lasting service without aging or creep.
- Material optimization: Steel wires are commonly used; can be supplemented with rubber or felt to enhance vibration isolation and reduce resonance transfer ratios.
Advantages
- Improved ride comfort and stability
- Long service life and durability
- Consistent performance in various environmental conditions
- Design flexibility for different suspension requirements
- Enhanced vibration isolation with optional soft material fillings
Considerations
- Lower inherent resistance may increase transfer ratios at resonance
- Steel wires may transfer vibrations, which can be mitigated by filling with soft materials
- Optimized design and material selection can minimize shortcomings and maximize overall performance