Dynamic Loads in the Three-Lobe Supercharger

1999 ◽  
Vol 121 (4) ◽  
pp. 602-605 ◽  
Author(s):  
G. C. Mimmi ◽  
P. E. Pennacchi
Keyword(s):  
Analytical Model ◽  
Dynamic Loads ◽  
Dynamic Transformation

In previous papers the authors have analyzed the functioning of the three lobe supercharger. This analysis was made possible by a complete analytical model of the rotors. The dynamic transformation of the chambers occupied by the fluid allows us to point out specific problems regarding trapped volumes and to design special devices to avoid these problems. As a result it is possible to simulate the performance of the compressor and to propose an analytical model in order to determine the dynamic loads on the rotors. The topic of this paper is the comparison between the performances achieved by helical and spur rotors, with particular attention to the loads, force and moment, acting on the rotors.

An analytical model for predicting the deflection of laminated basalt composite plates under dynamic loads

2014 ◽  
Vol 116 ◽  
pp. 273-285 ◽  
Author(s):  
Süleyman Baştürk ◽  
Haydar Uyanık ◽  
Zafer Kazancı
Keyword(s):  
Analytical Model ◽  
Composite Plates ◽  
Dynamic Loads

An Analytical Model for Spur Gear Dynamics

1997 ◽  
Author(s):  
Jao-Hwa Kuang ◽  
Ah-Der Lin
Keyword(s):  
Mathematical Model ◽  
Analytical Model ◽  
Analytical Solutions ◽  
Dynamic Contact ◽  
Spur Gear ◽  
Dynamic Loads ◽  
Gear Pair ◽  
Mesh Stiffness ◽  
Detailed Model ◽  
Gear Dynamics

Abstract A mathematical model for a spur gear pair with two-step mesh stiffness is proposed. Two constant values of mesh stiffness are used to approximate the complicated compliance alternation of contact tooth pairs between one and two during meshing. Analytical solutions of the dynamic loads are derived. The method has been employed to calculate the dynamic contact load, transmitted torque and the bearing forces. The results compared favorably with a more detailed model found in the literature.

scholarly journals A Synthesis Model for Forcing Action Arrangement in the System of Reducing Dynamic Loads of a Mobile Machine

2015 ◽  
Vol 20 (2) ◽  
pp. 437-443 ◽  
Author(s):  
H. Kaźmierczak ◽  
T. Pawłowski ◽  
K. Zembrowski
Keyword(s):  
Analytical Model ◽  
Dynamic Characteristics ◽  
Vibration Isolation ◽  
Dynamic Loads ◽  
Dynamic Susceptibility ◽  
Isolation System ◽  
Vibration Isolation System ◽  
Supporting Structure ◽  
System Vibration ◽  
Mobile Machine

Abstract An idea is presented for a method to lower excessive dynamic loads in the system of supporting structure, mechanical-hydraulic forcing system, vibration isolation system, protective unit. The dynamic characteristics of the system are determined by the method of dynamic susceptibility. An analytical model of the system was built (mobile machine to carry out protective treatments; project WDN-POIG.01.03.01-00-164/09).

ANALYTICAL MODEL OF SUPEREXCHANGE

1988 ◽  
Vol 49 (C8) ◽  
pp. C8-911-C8-912
Author(s):  
Yu. V. Rakitin ◽  
V. T. Kalinnikov
Keyword(s):  
Analytical Model

Study of the dynamics of ТПА 350 automatic mill working stand elements

2020 ◽  
Vol 76 (8) ◽  
pp. 830-840
Author(s):  
S. R. Rakhmanov ◽  
V. V. Povorotnii
Keyword(s):  
Mechanical System ◽  
Dynamic Model ◽  
Maximum Amplitude ◽  
Calculation Scheme ◽  
Dynamic Loads ◽  
Forced Oscillations ◽  
Mass Model ◽  
Automatic Mill ◽  
Hollow Billet ◽  
Oscillation Movement

To form a necessary geometry of a hollow billet to be rolled at a pipe rolling line, stable dynamics of the base equipment of the automatic mill working stand has a practical meaning. Among the forces, acting on its parts and elements, significant by value short-time dynamic loads are the least studied phenomena. These dynamic loads arise during transient interaction of the hollow billet, rollers, mandrel and other mill parts at the forced grip of the hollow billet. Basing of the calculation scheme and dynamic model of the mechanical system of the ТПА 350 automatic mill working stand was accomplished. A mathematical model of dynamics of the system “hollow billet (pipe) – working stand” within accepted calculation scheme and dynamic model of the mechanical system elaborated. Influence of technological load of the rolled hollow billet variation in time was accounted, as well as variation of the mechanical system mass, and rigidity of the ТПА 350 automatic mill working stand. Differential equations of oscillation movement for four-mass model of forked sub-systems of the automatic mill working stand were made up, results of their digital calculation quoted. Dynamic displacement of the stand elements in the inter-roller gap obtained, which enabled to estimate the results of amplitude and frequency characteristics of the branches of the mill rollers setting. It was defined by calculation, that the maximum amplitude of the forced oscillations of elements of the ТПА 350 automatic mill working stand within the inter-roller gap does not exceed 2 mm. It is much higher than the accepted value of adjusting parameters of the deformation center of the ТПА 350 automatic mill. A scheme of comprehensive modernization of the rollers setting in the ТПА 350 automatic mill working stand was proposed. It was shown, that increase of rigidity of rollers setting in the ТПА 350 automatic mill working stand enables to stabilize the amplitude of forced oscillations of the working stand elements within the inter-rollers gap and considerably decrease the induced nonuniform hollow billet wall thickness and increase quality of the rolled pipes at ТПА 350.

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