Research Papers

A Dynamic Analysis on the Transition Curve of Profiled Chamber Metering Pump

[+] Author and Article Information
Hua Lei

School of Aeronautics and Astronautics,
Zhejiang University,
Hangzhou, Zhejiang 310027, China

Huijün Hu

China Academy of Arts,
Hangzhou, Zhejiang 310002, China

Yang Lu

School of Aeronautics and Astronautics,
Zhejiang University,
Hangzhou, Zhejiang 310027, China
e-mail: zd_luyang@126.com

1Corresponding author.

Contributed by the Dynamic Systems Division of ASME for publication in the JOURNAL OF DYNAMIC SYSTEMS, MEASUREMENT, AND CONTROL. Manuscript received December 25, 2014; final manuscript received March 17, 2016; published online May 6, 2016. Assoc. Editor: Fu-Cheng Wang.

J. Dyn. Sys., Meas., Control 138(7), 071003 (May 06, 2016) (10 pages) Paper No: DS-14-1548; doi: 10.1115/1.4033174 History: Received December 25, 2014; Revised March 17, 2016

A profiled chamber metering pump (PCMP) is a new type of positive-displacement vane pump which is composed of a special stator and a rotor–slide assembly. The face-shaped curve of the inner chamber of the stator is formed by means of two quarter circular arcs and two quarter noncircular arcs, and one of the two quarter noncircular arcs is defined as transition curve. The geometry of the transition curve directly affects the dynamic performances of the pump system, including its mechanical vibration, friction, wear, and kinetic losses. This paper discusses a set of dynamic analysis methods that combine kinetic loss control with vibration control for optimization of the transition curve of the PCMP. At first, basic conception and work line on the method are explained. In a second step, by means of force analysis, a kinetic loss model is established. Then, the model is used to examine a group of vibration optimized curves in polynomial form, and kinetic losses caused by different mechanical resistance forces are calculated. Finally, through a comparison analysis together with vibration and kinetic losses, comprehensive optimal transition curves can be obtained.

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Grahic Jump Location
Fig. 1

Configuration of the PCMP-transverse section: (a) unidirectional type of the PCMP and (b) bidirectional type of the PCMP

Grahic Jump Location
Fig. 2

Configuration of the PCMP-vertical section: (a) the C-plate in front view and (b) the T-plate in front view

Grahic Jump Location
Fig. 3

The candidate curves: C1, C2, C3, C4, and C5

Grahic Jump Location
Fig. 4

Change of velocity with polar angle for candidate curves: C1, C2, C3, C4, and C5

Grahic Jump Location
Fig. 5

Change of acceleration with polar angle for candidate curves: C1, C2, C3, C4, and C5

Grahic Jump Location
Fig. 6

Change of jerk with polar angle for candidate curves: C1, C2, C3, C4, and C5

Grahic Jump Location
Fig. 7

The face-shaped curve of inner profiled chamber of the PCMP

Grahic Jump Location
Fig. 8

Change of W1(n) with n

Grahic Jump Location
Fig. 9

Changes of W(Fm,Fc)(n) and W(Fr,Fe)(n) with n

Grahic Jump Location
Fig. 10

Changes of WFm(n) ,  WFc(n), WFr(n), and WFe(n) with n



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