Scientific studies

CP07: Theorem for Change of the Rigid Body Generalized Impulse

ABSTRACT: In this conference paper, a rigid body’s absolute general motion is studied. The rigid body is assumed as homogeneous and unsymmetrical. New additional kinetic characteristics are used. The most important of these are the following: the vector-real generalized velocity of the rigid body, the vector-generalized impulse of the rigid body, and the vector-real generalized force …

CP07: Theorem for Change of the Rigid Body Generalized Impulse Read More »

PR09: Condensed Lagrange Equations

VSU “Lyuben Karavelov” XVIII Anniversary International Scientific Conference by Construction and Architecture, 18–20 October 2018, Sofia, BULGARIA https://drive.google.com/open?id=16I9Kz7Ou2FrDgACFXhEqzQwN2zBBWUqJ&authuser=aniviv027%40gmail.com&usp=drive_fs

A14: Theoretical Matrix Study of Rigid Body Relative Motion

ABSTRACT: The relative motion of an arbitrary asymmetrical rigid body in this article is studied. Three new additional kinematic characteristics are defined, namely, vectors-real absolute, transmissive, and relative generalized velocity. A new theorem for summation of the rigid body’s real generalized velocities, with these new additional kinematic characteristics, is formulated. Using the final differential equations …

A14: Theoretical Matrix Study of Rigid Body Relative Motion Read More »

A12: Study of Forced Three-Dimensional Vibrations of Machine Aggregate “Electric Engine-Compressor”

ABSTRACT: The forced three-dimensional vibrations of a machine unit “electric motor-compressor”, mounted on the wagons of electric trains from the traction of “BDZ” EAD in this work are studied. The purpose of the work is to determine the parameters of the vibrating insulation of the unit that is suspended on three vertical supports to the …

A12: Study of Forced Three-Dimensional Vibrations of Machine Aggregate “Electric Engine-Compressor” Read More »

A11: Determination of Isolation Parameters of Machine Aggregate “Electric Engina-Compressor”

ABSTRACT: In this paper, the forced three-dimensional vibrations of a machine unit mounted on the wagons of the electric modular trains are studied. The unit is suspended on three vertical supports to the wagon frame. A vibrating isolation assembly is constructed at the top end of each carrier. The unit is accepted as an ideal …

A11: Determination of Isolation Parameters of Machine Aggregate “Electric Engina-Compressor” Read More »

A10: Experimental Determination of Vibration Levels of Electric Compressor Aggregate

ABSTRACT: Vibrations resulting from powertrain work and auxiliary equipment reduce the comfort, reliability, and durability of the vehicles. The vibration levels transmitted to the passenger compartment and the emitted structural noise depend mainly on the efficiency of their vibration isolation with respect to the vehicle body. The work presents an experimental determination of the vibration …

A10: Experimental Determination of Vibration Levels of Electric Compressor Aggregate Read More »

Shopping Cart
To Top