Study upon the Dynamic Answer of Plane Manipulators

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.463-464.1304 ◽

2012 ◽

Vol 463-464 ◽

pp. 1304-1308 ◽

Cited By ~ 1

Author(s):

Ionut Geonea ◽

Alexandru Margine ◽

Alin Ungureanu

Keyword(s):

Mechanical System ◽

Control Systems ◽

Mechanical Systems ◽

Dynamical Analysis ◽

Functional Description ◽

Plane Manipulator ◽

And Control

The paper illustrates the structure of plane mechanical systems used to manipulators. In the first part are presented some kinematics schemes used to plane manipulators. These mechanisms are used to manipulators, positioning and control systems. In generally these mechanisms have two or three degree of mobility. The purpose of the paper is to study the dynamics of a plane manipulator mechanical system used to manipulate garbage containers. It is presented the kinematics scheme of a plane manipulator, used to this purpose and is presented the mechanism functional description. In the second part is presented the kinematical and dynamical analysis for the plane manipulator mechanism. In the last part of the paper are presented graphical results for the dynamics parameters.

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Modified HHT Method for Vehicle Vibration Analysis in Time Domain Utilisation

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.486.396 ◽

2013 ◽

Vol 486 ◽

pp. 396-405 ◽

Cited By ~ 28

Author(s):

Juraj Gerlici ◽

Tomáš Lack

Keyword(s):

Mechanical System ◽

Time Domain ◽

Vibration Analysis ◽

Mechanical Systems ◽

Dynamical Analysis ◽

Vehicle Design ◽

Negative State ◽

Eigen Frequencies ◽

Dynamical Properties

The analysis of mechanical systems (for example the mechanical systems of vehicles) vibration is permanently very topical. The vehicle dynamical properties are determined with the help of this analysis during a new vehicle design, or renewal of an older existing vehicle. The Eigen frequencies are characteristic for a vehicle construction. A vehicle mechanical system is excited with various types of loads in the operation and this is the reason why its individual parts oscillate. The aim of a dynamical analysis is not only to judge the influence of an excitation on the mechanical system, but also on the base of that analysis, to propose and to perform the construction changes of a vehicle for the detected negative state elimination or improvement.

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Principles of Development and Foundations of Dynamical Analysis of Optimal Brake Leverage Systems of Passenger Carriages

Volume 11: New Developments in Simulation Methods and Software for Engineering Applications; Safety Engineering, Risk Analysis and Reliability Methods; Transportation Systems ◽

10.1115/imece2010-37731 ◽

2010 ◽

Author(s):

Guri Sharashenidze ◽

Otar Gelashvili ◽

Pavle Kurtanidze ◽

Mamuka Dolidze

Keyword(s):

Dynamical System ◽

Mechanical System ◽

Computational Experiment ◽

Simple Structure ◽

Mechanical Systems ◽

Dynamical Analysis ◽

Rolling Stock ◽

Optimization Task ◽

Force Transfer ◽

Brake Force

The safety movement of rolling stock is depended on the parameters of “carriage-rail” dynamical system as well as on the automatic brake’s reliability. The automatic brake provides the full brake effect at which the brake force transfer to the brake shoes is executed by linkage mechanical system. The linkage mechanical system will transfer the brake force with minimal force losses is characterized by simple structure and reliability operation. Hence the development of such system is very topical and problematic task. Nowadays the brakes systems consist from number of levers therefore are characterized by force great losses in the hinge junctions on the friction overcoming, great material capacity and making costs. In the work are developed perspective passenger car mechanical system, in which are overcoming the noted problems-they have simple structure, better condition for brake and force transfer, minimal economical costs. For brake mechanical systems optimal design due developed in the dynamic model are solved the dynamic analysis tasks. Due the carried out theoretical researches and according computational experiment is achieved the topical task solution. Carried out in the work research is acceptable for other kinds of brake mechanical systems optimization task solution as well as is possible fore application at development and research of arbitrary complexity lever mechanical system.

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Dynamics of Mechanical Systems and the Generalized Free-Body Diagram—Part II: Imposition of Constraints

Journal of Applied Mechanics ◽

10.1115/1.2965373 ◽

2008 ◽

Vol 75 (6) ◽

Cited By ~ 2

Author(s):

József Kövecses

Keyword(s):

Mechanical System ◽

Configuration Space ◽

Mechanical Systems ◽

Constrained Systems ◽

Simulation Design ◽

Free Body Diagram ◽

Free Body ◽

Dynamics Models ◽

And Control

In this part of the work we present some applications of the formulation developed in Part I (Kövecses, 2008, “Dynamics of Mechanical Systems and the Generalized Free-Body Diagram—Part I: General Formulation,” ASME J. Appl. Mech., 75(6), p. 061012) for the generalized free-body diagram in configuration space. This involves the specification and imposition of constraint conditions, which were identified as Step 2 of the analysis of a mechanical system in Part I. We will particularly consider bilaterally and unilaterally constrained systems, where constraints are realized via ideal or nonideal interfaces. We also look at the general case where the constraint configuration is possibly redundant. The results represent novel forms of dynamics models for mechanical systems, and can offer the possibility to gain more insight for simulation, design, and control.

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