2nd GENERATION LEAD MEASUREMENT |
|---|
| Jörg Seewig, Tobias Hercke |
- Abstract:
- Typically, a car has over 80 dynamically stressed seals. Since many years, the radial seal in combination with the shaft is a critical component for the automotive industry. A helix-like structure due to the manufacturing process (as a fingerprint of said process) can lead to an unacceptable oil consumption. In collaboration with Daimler, an objective method for characterising such function-relevant helix-structures better known as lead was developed. The lead parameters, which are relevant to leak-tightness, are derived from a least square fit of complex exponential functions in both directions radial and circumferential. The basic measurement setup consists of a stylus instrument in combination with a rotation unit.
- Keywords:
- lead, leak-tightness, approximation
- Download:
- IMEKO-WC-2009-TC14-573.pdf
- DOI:
- -
- Event details
- Event name:
- XIX IMEKO World Congress
- Title:
Fundamental and Applied Metrology
- Place:
- Lisbon, PORTUGAL
- Time:
- 06 September 2009 - 11 September 2009