Test the damper through repeated cycles in a representative mechanism, then compare post-test torque, motion time, leakage, appearance, and operating smoothness with pre-agreed acceptance limits. Cycle count alone does not prove durability.
Q1. What should an endurance test reproduce?
The fixture should reproduce the real working angle, loading direction, mounting arrangement, and speed as closely as practical. The cycle target should reflect the product’s expected field use. Record the starting torque and motion time so that post-test change can be evaluated objectively.
Q2. What should be inspected after cycling?
Measure torque at the agreed speed and direction, record closing or drop time, inspect for oil leakage, cracks, deformation, and abnormal noise, and check for sticking or uneven motion. If the damper works with a lid or hinge, inspect the complete mechanism as well because damage can originate outside the damper.
Q3. Which additional stresses may be needed?
Add high/low temperature, humidity, vibration, corrosion, or chemical exposure only when the product is expected to face those conditions. Where a relevant customer or market standard applies, align the test sequence, sample size, and criteria to that requirement rather than relying on a generic test description.
Clear conclusion: A durable damper maintains controlled motion after representative cycling and relevant environmental exposure. Define the acceptable post-test change in torque and time before testing, and reject any leakage or mechanical damage that compromises the product.
FAQ candidates:
| Question | Concise answer |
|---|---|
| Is a high cycle count enough to prove damper durability? | No. The test must also confirm post-test torque, motion time, leakage resistance, smoothness, and mechanical condition. |
| What should be recorded before an endurance test? | Record test angle, load, speed, temperature, starting torque, motion time, sample identity, and the agreed acceptance criteria. |
| When are environmental tests necessary? | They are necessary when the intended product environment includes temperature extremes, humidity, vibration, corrosive exposure, or chemicals that could affect performance. |
