JournalTOCs

International Journal of Heavy Vehicle Systems
Journal Prestige (SJR): 0.23

Number of Followers: 7

Hybrid journal (It can contain Open Access articles)
ISSN (Print) 1744-232X - ISSN (Online) 1741-5152
Published by Inderscience Publishers

[450 journals]

Analysis and practical validation on a multi-linkage scissor platforms
drive system for the satellite test facilities
- Authors: N.M.H. Norsahperi, S. Ahmad, S.F. Toha, I.A. Mahmood
  Pages: 1 - 14
  Abstract: This paper evaluates a modified structural analysis in measuring the reaction forces on the multi-linkage scissor mechanism driven by a ball-screw system. The proposed structural-virtual work (SV) analysis takes into account all reaction forces on the designed linkages to evaluate the accurate sizing of the actuator and as the consequence, the overall machinery development cost will be significantly reduced. The idea is proven in three ways: analytical analysis, simulation analysis and experimental analysis based on the developed prototype. The simulation study has shown that the estimated torque is successfully reduced by 29% as compared to the conventional approach. The superiority of the proposed analysis is confirmed by 12% error between the simulation and results from the developed prototype. The successful method proposed in this paper can be further used for all multi-linkage systems in the heavy-vehicle industry that require accurate sizing of the actuators.
  Keywords: scissor mechanism; structural analysis; virtual work analysis; static analysis; dynamic analysis; drive system
  Citation: International Journal of Heavy Vehicle Systems, Vol. 28, No. 1 (2021) pp. 1 - 14
  PubDate: 2021-04-21T23:20:50-05:00
  DOI: 10.1504/IJHVS.2021.114413
  Issue No: Vol. 28, No. 1 (2021)
Investigation of diesel oil-LPG content fuel utilisation in heavy duty
diesel-engines with common rail system
- Authors: MÃ¡tÃ© ZÃ¶ldy, Antal Lengyel, Ãkos Bereczky, KÃ¡roly Krajnik, AndrÃ¡s HollÃ³
  Pages: 15 - 33
  Abstract: In the second decade of XXI century the diesel scandal at least questioned the future of diesel. Focal point of the scandal is the real emission values of diesel engines. Consumption is a significant element of the engine operation, which cannot be indicated with merely one value. Indicating consumption characteristics is mainly possible with specific consumption, which is highly influenced by engine speed and load. A further factor influencing specific consumption is fuel supply system of the engine. Based on previous survey results and our supercharged common rail Diesel engine, we extended our research to determine how an LPG and diesel oil operation can be realised and what differences this makes concerning engine performance, fuel consumption and emission components at identical loads. Based on their results, the different operation modes were assessed. Moreover, we deliver statements concerning the usage of diesel and LPG, emission components and specific consumption.
  Keywords: engine combustion; specific consumption; ignition temperature; exhaust gas components; Diesel engine
  Citation: International Journal of Heavy Vehicle Systems, Vol. 28, No. 1 (2021) pp. 15 - 33
  PubDate: 2021-04-21T23:20:50-05:00
  DOI: 10.1504/IJHVS.2021.114419
  Issue No: Vol. 28, No. 1 (2021)
Relative navigation control of articulated vehicle based on LTV-MPC
- Authors: Guoxing Bai, Yu Meng, Qing Gu, Weidong Luo, Li Liu
  Pages: 34 - 54
  Abstract: The automation of the articulated vehicle is an important trend of the intelligent transportation system in the mining industry. And the relative navigation is a key technology to automatic vehicles. One of the challenges in the relative navigation of the articulated vehicle is that the system constraints may cause the actuator saturation and other problems. In order to solve these problems, this paper presents a relative navigation control method based on linear time varying model predictive control (LTV-MPC). This control method can explicitly take the system constraints into account. The performance of the controller is verified by simulation and experiment. The results show that the articulated vehicle with the LTV-MPC controller can track the target heading direction, the steady-state error is less than 0.3 rad. The relative navigation controller based on LTV-MPC can be used to improve the automatic driving performance of the articulated vehicle.
  Keywords: articulated vehicle; relative navigation; motion control; LTV-MPC; linear time varying model predictive control; nonlinear systems
  Citation: International Journal of Heavy Vehicle Systems, Vol. 28, No. 1 (2021) pp. 34 - 54
  PubDate: 2021-04-21T23:20:50-05:00
  DOI: 10.1504/IJHVS.2021.114410
  Issue No: Vol. 28, No. 1 (2021)
Modelling, parametrisation and validation of a truck steering-system to
predict the steering-wheel torque
- Authors: Jan Loof, Igo Besselink, Henk Nijmeijer
  Pages: 55 - 78
  Abstract: The prediction of the steering-wheel torque in a steering-system is a challenging subject. The steering-system of a truck consists of many components, including a hydraulic power-steering system. A model is developed that includes the most important components. A Wheatstone bridge is used to model the hydraulic valve system. A flexible supply hose and compressible fluid in the cylinder chamber are taken into account. The model is parametrised using test-bench measurements. The model is validated by means of additional measurements on the same test-bench. The model is verified for quasi-static conditions and up till a frequency higher than a driver will ever use. The predictions of the steering-wheel torque, steering-wheel angle and pressures in the system are accurate for high torque amplitude inputs. For small inputs the model is still able to predict the steering-wheel torque with an error smaller than 10%.
  Keywords: commercial vehicle; hydraulic power-steering; Wheatstone bridge; steering-system; steering-wheel torque prediction; parametrisation
  Citation: International Journal of Heavy Vehicle Systems, Vol. 28, No. 1 (2021) pp. 55 - 78
  PubDate: 2021-04-21T23:20:50-05:00
  DOI: 10.1504/IJHVS.2021.114411
  Issue No: Vol. 28, No. 1 (2021)
A new numerical method for analysing the interaction of a bridge structure
and travelling cars due to multiple high-speed trains
- Authors: Mehmet Akif KoÃ§, Ä°smail Esen, Mustafa EroÄŸlu Yusuf Ã‡ay
  Pages: 79 - 109
  Abstract: Dynamic interaction between a 10-DOF high-speed train model and a simply supported bridge beam is studied. The second-order coupled equations of the bridge beam and train are derived using Lagrange method. The proposed method in the study provides considerable advantage by taking 0.5% of the time needed in analysing the train-bridge interaction (TBI) previously given in the literature using the finite element method (FEM). The presented modelling that includes the dynamic forces on the train components from the interaction, is created in a manner that it may assist both train and bridge engineers. It is showed that, while moving on the bridge, the dynamic forces on the train body, front and rear bogies, wheels as well as bridge are significantly affected by the speed and mass of the train, along with the flexibility of the bridge. Effects of multiple cars are included in the modelling.
  Keywords: high-speed train; bridges; dynamic interaction; dynamic forces; successive loading
  Citation: International Journal of Heavy Vehicle Systems, Vol. 28, No. 1 (2021) pp. 79 - 109
  PubDate: 2021-04-21T23:20:50-05:00
  DOI: 10.1504/IJHVS.2021.114415
  Issue No: Vol. 28, No. 1 (2021)
Low speed performance based standards for the Nordic countries
- Authors: Fredrik Bruzelius, Sogol Kharrazi
  Pages: 110 - 124
  Abstract: Performance based standards (PBS) is an effective regulator policy which can address variation complexity in vehicle combinations. This paper investigates aspects of using computer simulation and mathematical models to assess the performance of vehicle combinations in low speed manoeuvring, and in particular roundabouts. A set of 22 vehicle combinations, including existing conventional heavy vehicles as well as prospective high capacity vehicles, is used to study the effects of turn angle and road surface conditions on the friction demand and swept path measures. Simulation results suggest that the friction demand measure is dependent on the available grip. This makes it hard to interpret and may not be suitable in the PBS framework. The swept path measure is relatively unaffected by friction levels, and can hence be calculated with simple and robust expressions not considering the road interaction. However, turn angle affects the swept path measure considerably, and should be addressed when designing the PBS scheme implementation into the legislations.
  Keywords: low speed performance based standards; high capacity transport vehicles; friction demand; swept path; performance assessment
  Citation: International Journal of Heavy Vehicle Systems, Vol. 28, No. 1 (2021) pp. 110 - 124
  PubDate: 2021-04-21T23:20:50-05:00
  DOI: 10.1504/IJHVS.2021.114414
  Issue No: Vol. 28, No. 1 (2021)
Review on NOx emissions from using biodiesel blends in diesel engines
- Authors: Mahmoud Sayed, Mohamed Elhemaly
  Pages: 125 - 136
  Abstract: Environmental pollution is a major problem in all countries around the world. Internal combustion engine (ICE) is considered one of the main sources of emissions, thus most countries are interested in using biodiesel as alternative fuel. Scientists, researchers, and manufacturers are facing the challenge of reducing fuel burning emissions and at the same time achieving the main technological requirements such as increasing vehicle performance, decreasing fuel consumption, etc. Some of recent studies indicate that many vehicles and movable equipments accepted to use of biodiesel blends (Bb). Mainly, the new engines can be operated with Bb of 20%, 30% and B100 (Pure Biodiesel). Nitrogen Oxides (NO<SUB align="right">x) represents one of the exhaust gases that have a great impact on environmental conditions. This work presents an analytical study of NO<SUB align="right">x emissions summarising the practical solutions to reduce NO<SUB align="right">x emitted from diesel engine burning Biodiesel blends (Bb).
  Keywords: biodiesel fuels; biodiesel blends; NOx emissions; DE; diesel engine; ICE; internal combustion engine
  Citation: International Journal of Heavy Vehicle Systems, Vol. 28, No. 1 (2021) pp. 125 - 136
  PubDate: 2021-04-21T23:20:50-05:00
  DOI: 10.1504/IJHVS.2021.114418
  Issue No: Vol. 28, No. 1 (2021)