Bicycle Rear Shock damping coefficent

In summary, the speaker was carrying out calculations on a rear bicycle shock to determine its spring stiffness and damping coefficient. They used a tensile tester to calculate a spring stiffness value of 130000 n/m2 (750 lb/in), but discovered that the damper is not working. They are seeking assistance in determining the appropriate damping coefficient for a shock with this spring stiffness value. Factors to consider when estimating the damping coefficient include the bike's intended purpose, the spring rate of the shock, and the desired ride quality. Experimentation may be necessary to find the optimal damping setting.
  • #1
Hodgie
8
0
Just carrying out calculations on a rear bicycle shock. Got my hands on one and intended to calculate spring stiffness and damping coefficent practically.
Did it on the spring using a tensile tester and have come up with a spring stiffness value of 130000 n/m2. (750 lb/in).
Problem when i dismantled the shock, the damper is not working any more. If anybody knows what sort of damping coefficent and average shock of this spring stiffness would use could u let me know? Doesn't need to be too accurate.
Haven't time to locate another shock so hopeing for some help.
Thanks in advance.
 
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  • #2
Unfortunately, without having another shock to compare it to, it is difficult to provide an exact answer to your question. However, there are some general guidelines that you can use to estimate the damping coefficient of your rear bicycle shock. First, you should consider the bike's intended purpose. Different shocks are designed for different types of riding, so a mountain bike shock will have different damping characteristics than a road bike shock. Second, look at the spring rate of the shock. The higher the spring rate, the more damping is required. As such, if your rear bicycle shock has a spring rate of 130000 n/m2 (750 lb/in), it likely requires a high level of damping.Finally, consider the desired ride quality. For example, a shock with high damping will provide a stiffer ride than one with low damping. Ultimately, the best way to determine the damping coefficient for your rear bicycle shock is to experiment with different settings and find the one that provides the ride quality you're looking for.
 

Related to Bicycle Rear Shock damping coefficent

What is a "Bicycle Rear Shock damping coefficent"?

A "Bicycle Rear Shock damping coefficent" refers to the measure of how much resistance a shock absorber provides when a force is applied to it. It is a measure of the shock's ability to absorb and dissipate energy.

Why is the damping coefficient important in bicycle rear shocks?

The damping coefficient is important in bicycle rear shocks because it determines how well the shock can absorb bumps and vibrations, providing a smoother and more comfortable ride. It also affects the handling and control of the bike, as too little or too much damping can cause instability.

How is the damping coefficient measured?

The damping coefficient is typically measured in units of Newton-seconds per meter (Ns/m). This is done by applying a known force to the shock and measuring the resulting velocity. The ratio of the force to velocity is the damping coefficient.

What factors affect the damping coefficient of a bicycle rear shock?

The main factors that affect the damping coefficient of a bicycle rear shock are the design and materials of the shock, the weight and riding style of the rider, and the terrain being ridden on. Different types of shocks (e.g. coil, air) and different adjustments (e.g. rebound, compression) can also affect the damping coefficient.

How can I adjust the damping coefficient of my bicycle rear shock?

The damping coefficient of a bicycle rear shock can be adjusted by changing the settings on the shock itself. This can include adjusting the rebound and compression settings, changing the spring rate, or adding or removing air pressure. It is important to consult the manufacturer's instructions and seek professional help if needed when making these adjustments.

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