Nanotribology and Nanoscale Friction Smooth sliding and modification of frictional characteristics through feedback control
نویسندگان
چکیده
Tribology is the science and technology of interacting solid surfaces in relative motion, and its topics include the study of lubricants, lubrication, friction, wear, and bearings. It is estimated that friction and wear cost the US economy 6% of the gross national product [1]. For example, 5% of the total energy generated in an automobile engine is lost to frictional resistance. Also notable are many tribology issues in the human body. The study of nanoscale friction has technological impacts in reducing energy loss in machines, in microelectromechanical systems (MEMS), and in the development of durable and low-friction surfaces and ultra thin lubrication films.
منابع مشابه
Smooth Sliding through Feedback Control
ribology is the science and technology of contacting solid surfaces in relative motion, including the study of lubricants, lubrication, friction, wear, and bearings. It is estimated that friction and wear cost the U.S. economy 6% of the gross national product [1]. For example, 5% of the total energy generated in an automobile engine is lost to frictional resistance. The study of nanoscale frict...
متن کاملSuppression of friction by mechanical vibrations.
Mechanical vibrations are known to affect frictional sliding and the associated stick-slip patterns causing sometimes a drastic reduction of the friction force. This issue is relevant for applications in nanotribology and to understand earthquake triggering by small dynamic perturbations. We study the dynamics of repulsive particles confined between a horizontally driven top plate and a vertica...
متن کاملNanotribology on a polymer network film
Scanning force microscopy ~SFM! of topography, frictional force, and stiffness on thin gelatin films reveals an entire spectrum of tribological behavior. Images display two distinct phases of gelatin whose characteristics relate to the degree of crystallinity. Dissimilar regimes of velocityand load-dependent friction and wear on each phase indicate glassy, rubbery, or melt behavior. Of fundamen...
متن کاملPrinciples of atomic friction: from sticking atoms to superlubric sliding.
Tribology-the science of friction, wear and lubrication-is of great importance for all technical applications where moving bodies are in contact. Nonetheless, little progress has been made in finding an exact atomistic description of friction since Amontons proposed his empirical macroscopic laws over three centuries ago. The advent of new experimental tools such as the friction force microscop...
متن کاملDesign of a New Instrument for Measuring Frictional Properties of Woven Fabrics
Friction measurement is one of important and interesting problems in the study of handle properties of fabrics. Different methods have been developed for measuring friction, such as sliding, KES and cyclic testing method. In this research, considering the possibilities of varying conditions in measuring friction, a new instrument by which the bottom surface of fabric can be moved and the top sl...
متن کامل