Zoltan Varga

7102989578

Publications - 2

Analysis of a hidromechanical system's stability with a simple method

Zoltan Varga

Publication Name: Proceedings of the Mini Conference on Vehicle System Dynamics Identification and Anomalies

Publication Date: 1998-12-01

Volume: Unknown

Issue: Unknown

Page Range: 283-294

Description:

Compact built hydraulic power steering with closed center valve is very sensitive for instability. The introduced method divide the nonlinear second order differential equation system into a linear and a non linear part. Applicating the Perron's theorem for the divided equation system it is possible to find such parameter's values which do not make the system instable.

Open Access: Yes

DOI: DOI not available

Test on railway vehicle-runway dynamic system for stress analysis of a carriage's body

Emil Halmos Laszlo Bozoky Vince Nagy Zoltan Varga

Publication Name: Proceedings of the Mini Conference on Vehicle System Dynamics Identification and Anomalies

Publication Date: 1998-12-01

Volume: Unknown

Issue: Unknown

Page Range: 115-122

Description:

Damages at vehicle bodies required an analysis to qualify the vehicle-runway system. The aim of the analysis is to declare critical effects and show the possible and necessary measurements. The running tests on the vehicle had many objects. Effects of waveform could be seen in the spectral density functions for vehicles running on runway with waved rail wearing. Effects of waveforms were found to be little on the mechanical stresses of vehicle body. The curve of the runway has major effect on the values of the mechanical stresses.

Open Access: Yes

DOI: DOI not available