Analysis of the flow rate and the volumetric efficiency of the trochoidal pump by application of Taguchi method

Abstract

Original scientific paper Taguchi method has been used to analyse the influence of the coefficient of the trochoid radius, the number of revolutions and the working pressure on the change in the flow rate and the volumetric efficiency of the trochoidal rotary pump with internal gearing. The coefficient of the trochoid radius, as a geometrical parameter and the number of revolutions and the pressure, as working parameters are considered influential factors in this paper. Taguchi robust design and orthogonal matrices have been applied to design the experiment and to determine the degree of the factors influence, as well as their optimum values. The highest values both for the flow rate and the volumetric efficiency have been obtained for the coefficient of the trochoid radius of 1.375, the number of revolutions of 2000 min −1 and for the working pressure of 1 bar. The conformation of the experiment shows that Taguchi method can be successfully used for selection of the optimal combination of parameters so that the maximum volumetric efficiency of the trochoid pump can be achieved. Keywords: ANOVA; flow rate; gerоtor; Таguchi method; trochoidal pump; volume efficiency Analiza protoka i volumenskog stupnja iskoristivosti trohoidne pumpe primjenom Taguči metodeIzvorni znanstveni članak Primjenom Taguči metode u radu je analiziran utjecaja koeficijenta polumjera trohoide, broja okretaja i radnog tlaka na promjenu protoka i volumenskog stupnja iskoristivosti trohoidne rotacijske pumpe s unutarnjim ozubljenjem. Koeficijent polumjera trohoide je geometrijski parametar, a broj okretaja i tlak su radni parametri koji predstavljaju utjecajne faktore u ovom radu. Primjenom metode Tagučijevog robusnog dizajna i ortogonalnih matrica formiran je eksperimentalni dizajn i određen je stupanj utjecaja faktora, kao i njihove optimalne vrijednosti. Za analizirane uvjete eksperimenta, najveće vrijednosti protoka i volimenskog stupnja iskoristivosti dobivene su za koeficijent polumjera trohoide 1.375, broj okretaja od 2000 min −1 i radni tlak od 1 bar. Potvrda eksperimenta pokazuje svrhovitost primjene Taguči metode za izbor optimalne kombinacije parametara u odnosu na maksimalni volumenski stupanj iskoristivosti trohoidne pumpe.

A Review of Gerotor Technology in Hydraulic Machines

“…In 2017, Ivanović et al carried out two optimization studies [84,85] of a gerotor pump: A selection of optimal parameters and flow performance indexes. Based on their literature review, Ivanović et al [84] concluded that there was no application of factorial experiment for optimization parameters to estimate the statistical significance of certain factor effects yet.…”

“…Based on their literature review, Ivanović et al [84] concluded that there was no application of factorial experiment for optimization parameters to estimate the statistical significance of certain factor effects yet. Moreover, Ivanović et al [85] introduced the Taguchi method for flow performance indexes. The main conclusions were that the number of revolutions mostly influence the change in the flow rate and pressure had the greatest influence.…”

Determination of tribological properties of aluminum cylinder by application of Taguchi method and ANN-based model

“…The authors have also successfully used the Taguchi method in tribological optimization of hybrid composites with aluminum base [29][30][31]. In the field of mechanical construction and mechanization, the Taguchi method can be used, as example, for selecting the ideal toroidal pump and gear power transfer parameters [32,33].…”

Presentation of some constructive solutions for a rotating machine with profiled rotors

“…Also, their efficiency is studied in the paper [4]. Since the performance of these types of pumps, energy losses and their volumetric efficiency are very important in the construction of a pump, it have been intensively studied by researchers in the field [5][6][7]. However, standard piston pumps use a limited number of pistons for oil absorption and drainage [8].…”