On Pain Detection in Multibody Systems

Abstract

Up to now a coherence between pain and technical systems has almost not been researched. Whereas some aspects of the nociceptive pain which serves human beings as a warning system and is also described as useful, can be transferred necessarily to technical systems. The idea of pain detection is an additional product of the Mesoscopic Particle Method [2-4]. Thereby the transformation of kinetic energy into heat energy caused by impact- and friction processes in the boundary layer of contact areas is described correctly with respect to thermodynamics. Between the properties of pain and heat there obviously exist analogies. Pain increases when certain external effects get higher and decreases smoothly, when the effect is taken off [5]. Generally pain is a vector of different phenomena. By means of the developed sensor concept the application of energy is detected including implicit frequency selective information about the jerk. It will experimentally and numerically be shown how e. g. a “hard-soft-detection” of surfaces can be evaluated by the developed sensor concept.

Inverse Dynamics Problems

“…Jerk in autonomous driving is used to evaluate the comfortable ride and safety of the passengers [12,114,123,187,188] (Table 24). [177] Applied Mechanics and Materials N/A The concept of technical pain, which is based on the analysis of mesoscopic systems, was introduced in this work. The system was modeled as damped oscillators and the heat transferred by an impact.…”

Synchronization effects in rotors partially filled with fluid‐influence on propulsion

“…For several system conditions it is possible that the rotor is driven at an overcritical speed, but the free imbalance synchronizes to the critical speed of the rotor and leads to vibrations with high amplitudes. A model based on the laval rotor was developed as a real-time damage observer [4], the numerical analysis of this model is shown in [5] for a rotor with time-dependent rotational speed. The influence of the synchronization state on the rotor propulsion is discussed in this paper.…”