Lumped Parameters Model of a Crescent Pump

Lumped Parameters Model of a Crescent Pump

This paper presents the lumped parameters model of an internal gear crescent pump with relief valve, able to estimate the steady-state flow-pressure characteristic and the pressure ripple. The approach is based on the identification of three variable control volumes regardless of the number of gear teeth. The model has been implemented in the commercial environment LMS Amesim with the developme...

Estimation and identification of parameters in a lumped cerebrovascular model.

This study shows how sensitivity analysis and subset selection can be employed in a cardiovascular model to estimate total systemic resistance, cerebrovascular resistance, arterial compliance, and time for peak systolic ventricular pressure for healthy young and elderly subjects. These quantities are parameters in a simple lumped parameter model that predicts pressure and flow in the systemic c...

Automatic Modelling of Lumped Parameters Dynamic Systems

This paper describes the framework and the approach that are utilized in the implementation of a software for automated mathematical modelling of dynamic systems. Application examples illustrate the main features and possibilities of this software. The formalism utilizes a system linear graph representation associated to a systematic procedure in order to obtain a state-space model of lumpedpar...

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 Practical Design of Lumped, Semi-lumped & Microwave Cavity Filters