Many different approaches are known for assessing the heat build-up within elastomeric materials under dynamic loads, but they are all based on direct proportionality between the amount of heat generated in unit time and the coefficient of internal resistances, in the calculation of which hysteresis losses
Curve of dependence of hysteresis losses
on the number of cycles: amplitude 2 % with a frequency of 5 Hz (a); Amplitude of 6 % with a frequency of 15 Hz (b)
Roder, "Effects of size distribution on hysteresis losses
of magnetic nanoparticles for hyperthermia," Journal of Physics: Condensed Matter, vol.
Three mechanisms contribute to heat loss in MNPs, namely, hysteresis losses
, Neel and Brownian relaxations.
These cushions require low density, good tensile strength, tear strength and elongation (TTE properties) with low hysteresis losses
. Unfortunately, changes that contribute to low hysteresis loss often lead to inadequate TTE properties.
In the general case, for the resin-coated SMCs, the losses are mainly composed of eddy current and hysteresis losses
. Flexural strength was measured by three-point bending method (Instron 5848, USA) for a bar specimen with the size 35 mm x 4 mm x 5 mm.
The second advantage of the time-domain solver is the ability to capture all the physical phenomena in a real process, such as higher-order harmonic responses, magnetic remanence, and hysteresis losses
. The understanding of these physical processes is beneficial, sometimes critical, to engineering design.
Stator core losses [W.sub.t] can be divided into three categories of hysteresis losses
[W.sub.h], eddy current losses [W.sub.e], and anomalous (or excess) losses [W.sub.e] :
The power losses of motor include copper losses, hysteresis losses
of the core, eddy current losses of the PM, mechanical losses, and stray losses.