A procedure for SISO controllability analysis—With application to design of pH neutralization processes

A PROCEDURE FOR SISO CONTROLLABILITY ANALYSIS--WITH APPLICATION TO DESIGN OF pH NEUTRALIZATION PROCESSES

-A procedure for analyzing the input-output controllability of single-input single-output (SISO) systems is presented. This procedure is applied to a pH neutralization process which must be redesigned to get acceptable controllability. It is found that more or less heuristic design rules given in the literature follow directly. The key steps in the analysis are to consider disturbances and to s...

investigating the feasibility of a proposed model for geometric design of deployable arch structures

deployable scissor type structures are composed of the so-called scissor-like elements (sles), which are connected to each other at an intermediate point through a pivotal connection and allow them to be folded into a compact bundle for storage or transport. several sles are connected to each other in order to form units with regular polygonal plan views. the sides and radii of the polygons are...

A Procedure for Design of the Axial Flow Fans

A Procedure for Splitting Processes and its Application to Coordination

ion operator The operator T hides those actions in a process p that occur also in a set of actions I ⊆ Act. The act of hiding an action a, which means “replacing a by τ ,” differs from the act of blocking a, which means “replacing a by δ .” We adopt the following usual operator precedence (in decreasing order): t, |, ·,‖,T,+. We write as few parentheses as possible, omitting them also in the ca...

Controller Design for Integrating Processes in Siso or Mimo Systems

A two-step design t o control integrator processes in an SISO or MIMO system is proposed. For an SISO system, the first step of the design is to stabilize the integrator process with P&D modes in a secondary loop to achieve good stability robustness and modest performance. In the second step of design, a P&I controller in the primary loop is derived to improve the overall performance. By this w...