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1. Fuzzy parameters in design of dry friction clutch are analyzed. Mathematical model of fuzzy multi-aim optimization for this kind of clutch is established.

2. As the dry friction between the dampers dissipates the vibratory energy, the vibration of blades is reduced.

3. In addition, the dry friction coefficient is 0.44 at the condition of 147 N loading.

4. In digital simulation of dynamic system with dry friction forces, numerical instability always occurs and leads to incorrect results when the theoretical model of dry friction is used.

5. The dry friction damping factor is introduced to measure the effect of friction damping on blades.

6. The study indicates that the disorder of dry friction can significantly increase the resonant response of bladed disks, especially in the system with weaker coupling and larger viscous damping ratio.

7. The dry friction damper consists of an elastic support, two plates, a spring and a fixed support.

8. The behavior and mechanism of the composites in dry friction at different temperature were investigated.

9. Dry friction occurs when one solid body slides on another.

10. PVT graphs was obtained in dry friction and water lubrication. At last, the affection of PVT graphs on design of water lubricated bearings is analyzed.

11. To determine the steady state response of a dry friction damper blade excited by a periodic force, an analytical method is developed.

12. According to the analysis, dry friction damper can raise the aeroelastic stability of the labyrinth gas seals.

13. Renewable air dry friction between the desiccant particles of dust into subtle is the source of desiccant dust.

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14. Dry friction damping, which widely used in blades of aero engine, steam turbine and gas turbine, is an effective and simple measure for vibration reduction of blades.

15. Coulomb dry friction model is used. The differential equations of rotor- elastic support-dry friction damper system are given.

16. The effect of two -dimensional loading on the dry friction damping characteristics of Metal Rubber isolator is researched in this paper.

17. In order to decrease the vibration of a blade, a dry friction damper is installed on a blade platform to introduce attached damp.

18. The response of vibration system vibration can be efficiently reduced by a dry friction damper.

19. Analysis the mass and linear wearing rules for the surface of involute gear tooth, with dry friction or lubrication shortage.

20. The result show, in the friction process the phosphorated vermicular cast iron dry friction temperature field have a variable process from non stable state to stable.

21. The conclusions of applied to the optimal design of dry friction dampers for the future turbomachineries.

22. Actually, piston ring is working under the state of boundary lubrication and the half dry friction.

23. The sliding frictional properties of ZA27 alloys which are the same material friction couples have been researched under the dry friction and lubricant through SRV sliding friction testing apparatus.

24. The response computation of a two degree of freedom dry friction damped system with velocity dependent variable coefficient of sliding friction under harmonic excitation was discussed.

25. The effects of Si content on wear properties of Si-modified high aluminum Zn-based composites were investigated by abrasion test under dry friction and oily lubricated friction conditions.

26. A unique cladding powder material to harden corrugating rollers surface was developed to tackle the severe dry friction abrasive wear.

27. A simplified method using transfer matrix method was applied to the analysis and calculation of the vibration damping effect induced by dry friction snubber on the blade platform.

28. The testing routine is helpful to find a comfortable configuration format in engineering of dry friction damper.

29. The conclusions of this dissertation can be applied to the optimal design of dry friction dampers for the future turbomachineries.

30. To validate the calculated results of the transfer matrix method, the finite element method ANSYS was used to calculate blade vibration with dry friction damper on the platform.