SZEKCIÓÜLÉSEK: PÁNCÉLOS- ÉS GÉPJÁRMŰTECHNIKAI SECTIONAL SESSIONS: ARMOUR AND MILITARY VEHICLE TECHNOLOGY FÉMEK SZEMCSEELLENÁLLÁSÁNAK VIZSGÁLATA ABRASIVE RESISTANCE TESTING OF METALLIC MATERIALS Anton AMBRÓZY, Dr. Alexey CHOVANEC PhD, Mária IGAZOVÁ* Alexander Dubcek University in Trencin, *Alexander Dubcek university in Trencin, Istitute of Natural Sciences and Languages,Slovakia This presentation is focused on abrasive resistance testing of track link materials. Testing method is explained and test device for realization of abrasive resistance testing is described. The experimental results published in this article result in applicability of test device for realization of abrasive resistance testing. MÉRT MOZGÁSMENNYISÉGEK NAGY HATÉKONYSÁGÚ SPEKTRUM ANALIZISE HIGH ORDER SPECTRAL ANALYSIS OF A MEASURED AUTOMOTIVE AMOUNT Prof. Dr. Eng. Ltc. Marin MARINESCU PhD, Radu VILAU, Ovidiu-Constanin ILIE, Gheorghe BECHERU* Military Technical Academy, Bucharest, Romania * Police Dept., Timisoara, Romania The presentation deals with a new approach in data analysis of a measured mechanical amount. The classic approach is mainly based on the 38
deterministic statistics that can t cover the whole field of a complete analysis. The stochastic approach, to be used in this paper, offers far more information about the mechanical amount and can take into account the non-linearity of the signal, eventually, the mechanical amount itself. Moreover, starting from the analysis developed with this method, mathematical models, both in discrete and continuos time can be achieved. A MAGYAR HONVÉDSÉG TEREPJÁRÓ SZEMÉLY- ÉS TEHERGÉPJÁRMŰ PARKJÁNAK MENNYISÉGI ÉS MINŐSÉGI MUTATÓI ÉS A GÉPJÁRMŰ BESZERZÉSI PROGRAM KERETÉBEN BESZERZETT ÚJ TÍPUSOK AZOKRA GYAKOROLT HATÁSA QUANTITATIVE AND QUALITATIVE INDICATORS AND RATIOS OF HUNGARIAN FORCES TERRAIN VEHICLE FLEET, AND EFFECTS OF NEW MODELS FROM THE ONGOING VEHICLE PROCUREMENT PROGRAM Dr. Eng. Col. József RUSZ PhD Hungarian Defence Forces Vehicle Fleet Management Services, Budapest, Hungary Continuous participation in Peace Support Operations made necessary to the Hungarian Defence Forces to equip the Hungarian troops with modern, state-of-the-art vehicles with the requisite terrain capabilities, in addition to the soldiers appropriate personal kit and equipment. In order to this, the Vehicle Procurement Program started in 2003, and as a result the process of introducing new vehicles into service and distributing them to the units is ongoing. Although, number of vehicles received from the program based on the funds made available is lagging behind the original plans, it shows and represents the direction of reformation of our vehicle fleet, however for the troops it is still going to be a years-long task to operate and maintain a mixed pool composed of the existing old models and new procurements. 39
The author of this article will evaluate this vehicle fleet, and will provide a quantitative and qualitative analysis. HADITECHNIKAI ESZKÖZÖK ÉLETCIKLUS ALATTI MEGBÍZHATÓSÁGA RELIABILITY ENSUREMENT OF SPECIAL TECHNOLOGY DURING LIFETIME CYCLE Dr. Alexey CHOVANEC PhD Alexander Dubcek University in Trencin, This presentation is focused on importance of reliability in quality system and definition of factors which can have influence on reliability. The main goals, elements and principles of program reliability control in life cycle are defined. FORGÓ MOZGÁSÚ SIKLÓCSAPÁGYAK KENÉSE ÉS VÉDELME PROTECTION AND RECONDITIONING SLIDING BEARING ALTERNATIVES TECHNOLOGIES Roxana NEDELCU, Marian BUNEA Military Technical Academy, Bucharest, Romania In the paper we will present metal spraying protection and reconditioning methods of pins or bearing (rotary engine components). Metal spraying technology, with powder or wire, using chemical, electrical or plasma energy consist in some main operations: cleaning and surface preparing, metal spraying, mechanical processing and control. 40
A MATEMATIKAI MODELLEZÉS FOLYAMATA RENDSZER ÉS KÖRNYEZET MOZGÁSA VISZONYLATÁBAN VÁLTOZÓ STRUKTÚRÁK ESETÉN MATHEMATICAL MODELING OF PROCESSES IN THE SYSTEM ENVIRONMENT DRIVER CATERPILLAR VEHICLE FOR MOTION ON ROUTE WITH CHANGEABLE STRUCTURE Iliyan LILOV, Lalyo LALEV National Military University, Land force faculty, V.Turnovo,Bulgaria In this paper the main processes in environment driver caterpillar vehicle system are determined. a simulation model is created and some results, describing dynamic characteristics and processes for motion on road with changeable structure are depicted. ÚJ OKTATÁSTECHNIKAI ESZKÖZÖK ALKALMAZÁSA A GÉPJÁRMŰTECHNIKAI KÉPZÉSBEN APPLICATION OF NEW TEACHING AIDS IN PROCESS OF AUTOMOTIVE TECHNICIAN TRAINING Eng. Maj. Róbert VÉG Bolyai János Military Technical Faculty, ZMNDU, Budapest, Hungary In order to reach educational goals, the followings should be taken into considerations: who teaches who, the subjects and the ways of teaching. The first part of the idea can be answered easily, because the most experienced and trained teacher should train the students having good scores in the process of admission and professional calling. The subjects must cover the recent marketable engineering knowledges, while students should be trained in field of military leadership. Az eredményes oktatás feladatainak megoldásához át kell gondolni, hogy ki, kit, mire és hogyan oktasson. A ki és kit kérdésre a válasz adott, mert természetesen a legjobb, legkorszerűbb tudással rendelkező 41
oktató oktasson olyan hallgatót, aki sikeres felvételi eljárás után került be az oktatási rendszerbe, és kellő elhivatottságot érez a maga által választott szak elsajátításához. A mire válasza szintén meghatározott, mert piacképes mérnöki ismereteket kell oktatni, ugyanakkor a hallgatóknak fel kell készülniük az első tiszti beosztás ellátásához is. AUTOREGRESIVE MODELS IN SIMULATION OF SERVICE CONDITIONS LOADS OF CONSTRUCTION ELEMENTS Jozef BUCHA, Alexey CHOVANEC* Alexander Dubcek Univesity in Trencin, *Alexander Dubcek Univesity in Trencin, This paper deals with simulation of service conditions loads, which affect construction elements of the car during the car movement on the road. The car is modelled as a quarter model in Simulink. For stress computation of the construction elements, FEM program Ansys is used. 42