..., an accurate force control is required. The force control module, which is referred to as delayed reference control (DRC) belongs to the category of nontime based controllers. According to the DRC theory, the desired input reference x d is a function of time and a variable, which plays the role of a time delay...

... declares the complete stability picture of SM chatter within the mathematical framework of multiple time-delay systems (MTDS). What resides at the core of this development is our own paradigm, which is called the cluster treatment of characteristic roots (CTCR). This procedure determines the regions...

... and the delay in the thermal response, in order to accommodate situations where the measured points cannot be located near the heat source, which may be buried into the structure. Experimental validation of these models showed their inherent stability even when the temperature measurements are contaminated...