Modeling Heat and Pain in Multibody Systems

• Autorzy: Ostermeyer, G. P. , Neumann, M.
• Konferencja: Polish-German Workshop on Dynamical Problems in Mechanical Systems (9 ; 4-10.09.2005 ; Paszkówka, Poland)
• Języki publikacji: EN

Abstrakty

EN

Within the classical dynamics of multi body systems physical effects in boundary layers of contacting bodies can be fundamental. Examples are impact motion or frictional contact. Usually the dynamics in boundary layers is given on other time and length scales than the dynamics of the system itself. This paper deals with a mesoscopic particle discretisation of such contact zones or surfaces. These particles have hidden degrees of freedom from macroscopic point of view, which are separated only on a microscale. To be correct within the thermodynamic properties we have to use different time and length scale dynamics in these particle systems. One single particle for instance could be used as sensor giving a rough measure of pain in multibody systems (MBS). This is of interest in human like models with sportive dynamics or even in walking machines, where the dynamics of ground contact have to be evaluated with respect to human walking behaviour. This measure of pain grows up, when the impacts are repeated in short times and is lowered when there are no hurting motions. So this measure of pain is rather similar to the physical quantity of heat, which is generated by impacts and lowered by convection, radiation or conductional effects. In frictional contact this particle discretisation can be used for detecting the heat generation and even wear properties. The research on frictional effects in boundary layers of contacting bodies was the root of developing the mesoscopic particle method (Ostermeyer, 1996 and 1999).

• Czasopismo: Machine Dynamics Problems
• Rocznik: 2005
• Tom: Vol. 29, No. 4
• Strony: 127-138
• Opis fizyczny: Bibliogr. 9 poz., il., wykr.

Twórcy

autor

Ostermeyer, G. P.

• Technical University of Braunschweig, Institute of Dynamics and Vibration,

autor

Neumann, M.

• Technical University of Braunschweig, Institute of Dynamics and Vibration,

Bibliografia

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