... flow and accurate pressure control depending on demands. This is realized through the designed force balancing of the valve spool. The dependency of the system to system variables on input pressure and the influence of air content on dynamic response of the valve are investigated. The resilience...

... the stability and rapidity of the header-pressure control but also improve the economic profits by saving considerable fuel consumption in its regulating. Table 3 Comparison of fuel consumptions Items Approaches Fuel consumption (kg/2500 s) Firing rate (kg/s) GPC with boilers 1 and 2 40,525...

...Noah D. Manring; Viral S. Mehta The objectives of this paper are to identify the design parameters that have the greatest impact on the bandwidth frequency of a pressure controlled, axial-piston pump. This study is motivated by the fact that a physical limitation for these machines has been...

...Patrick Opdenbosch; Nader Sadegh; Wayne Book This paper describes a novel learning/adaptive state trajectory control method and its application to electronic hydraulic pressure control. The control algorithm presented herein learns the inverse input-state mapping of the plant at the same time...

... modeling (up to 200 MPa) ( 1 2 ). closed loop systems control system synthesis electromagnets pistons pneumatic systems pressure control valves 12 11 2009 17 07 2010 22 12 2010 22 12 2010 2011 American Society of Mechanical Engineers ...

... neurocontrollers position control pressure control pressure sensors principal component analysis 08 01 2008 01 04 2009 17 08 2009 The correlation of the predicted PPP and actual PPP over 1000 cycles of hold-out data can be seen in Fig. 7 . To quantify the accuracy of the NN predictions...

... tracking, as well as a reduction in cyclic dispersion. Another benefit of the simultaneous coordination of both control inputs is a reduction in the control effort required to elicit the desired response. Instead of using a peak pressure controller that must compensate for the effects of a combustion...

... oscillations pistons pneumatic actuators power control pressure control robot dynamics Pneumatic actuation presents a number of features not seen in typical robotic actuators. These features include a high mass specific power density relative to electromagnetic actuators, inherent compliance...

.... piezoceramics piezoelectric actuators piezoelectric transducers motion control micropumps microactuators pressure control 19 03 2004 11 10 2005 Ben Mrad , R. , and Hu , H. , 2002 , “ A Model for Voltage-to-Displacement Dynamics in Piezoceramic Actuators Subject to Dynamic...

...William de Ojeda; Francisco Ruiz, Professor of Mechanical and Aerospace Engineering, A hydraulic circuit design composed of a pressure-regulating device in conjunction with a spring-loaded flow compensator is shown to be an effective mechanism to improve the pressure control functionality...

... combustion engines radial basis function networks predictive control observers pressure control 01 June 2001 01 March 2002 16 12 2002 Contributed by the Dynamic Systems and Control Division of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for publication in the ASME JOURNAL...

...Randall T. Anderson; Perry Y. Li A nonlinear dynamic model for an unconventional, commercially available electrohydraulic flow control servovalve is presented. The two stage valve differs from the conventional servovalve design in that: it uses a pressure control pilot stage; the boost stage uses...

...Perry Y. Li In this paper, the dynamic performance of an unconventional two-spool flow control servovalve using a pressure control pilot is analyzed. Such valves are less expensive than typical servovalves but also tend to be limited in their dynamic performance. Based on a previously developed...

.... 30 May 2000 10 05 2002 pressure control controllers internal combustion engines dynamics bond graphs Consider a portion of the bladder fixed at inner and outer radii a and b , respectively, which deflects transversely by w r and radially by u r...

...Heon-Sul Jeong, Associate Professor,; Hyoung-Eui Kim, Director, Pressure control characteristics of a three-way high-speed on/off oil hydraulic solenoid valve driven by a PWM signal with a fixed pulse period were theoretically and experimentally analyzed and evaluated. By virtue of its relatively...

... Systems and Control Division June 22, 1999. Associate Technical Editor: E. P Fa˙hrenthold. 22 June 1999 compressors state feedback stability closed loop systems nonlinear control systems flow control pressure control transients Moore-Greitzer Model Rotating Stall and Surge...

... SYSTEMS, MEASUREMENT, AND CONTROL . Manuscript received by the Dynamic Systems and Control Division December 17, 1997. Associate Technical Editor: Woong-Chul Yang. 17 December 1997 pressure control controllers nonlinear control systems nonlinear differential equations feedback Runge...