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Improving operational efficiency begins with measuring it. Since operational efficiency is about the output to input ratio, it must be measured on both the input and output side. Quite often, company management is measuring primarily on the input side, e.g., the unit production cost or the man hours required to produce one unit.
Performance: speed at which the Work Center runs as a percentage of its designed speed. Quality: Good Units produced as a percentage of the Total Units Started. It is commonly referred to as the first pass yield (FPY). To calculate the Total Effective Equipment Performance(TEEP), the OEE is multiplied by a fourth component:
The significant difference in the context of dynamic systems, is that the bottlenecks can shift. The speed of which a bottleneck shifts depending on the buffer between the processes. [22] Bottlenecks shift when the location of the work center in the production area changes, and this leads to control problems due to the significant delay in output.
The on-off characteristics of a typical ratchet means that many of these designs are not continuous in operation (i.e. technically not a CVT), but in practice, there are many similarities in operation, and a ratcheting CVT is able to produce a zero-output speed from any given input speed (as per an Infinitely Variable Transmission).
Its name comes from the information path in the system: process inputs (e.g., voltage applied to an electric motor) have an effect on the process outputs (e.g., speed or torque of the motor), which is measured with sensors and processed by the controller; the result (the control signal) is "fed back" as input to the process, closing the loop. [14]
Industrial process control (IPC) or simply process control is a system used in modern manufacturing which uses the principles of control theory and physical industrial control systems to monitor, control and optimize continuous industrial production processes using control algorithms.
Efficiency is very often confused with effectiveness. In general, efficiency is a measurable concept, quantitatively determined by the ratio of useful output to total useful input. Effectiveness is the simpler concept of being able to achieve a desired result, which can be expressed quantitatively but does not usually require more complicated ...
Control may be grouped according to three general classifications: [3] the nature of the information flow designed into the system (open- or closed-loop control) the kind of components included in the design (man or machine control systems) the relationship of control to the decision process (organizational or operational control).