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| 1 | Optimization of suspension system of off-road vehicle for vehicle performance improvement显示文摘Vehicle suspension design includes a number of compromises to provide good leveling of stability and ride comfort. Optimization of off-road vehicle suspension system is one of the most effective methods, which could considerably enhance the vehicle stability and controllability. In this work, a comprehensive optimization of an off-read vehicle suspension system model was carried out using software ADAMS. The geometric parameters of suspension system were optimized using genetic algorithm (GA) in a way that ride comfort, handling and stability of vehicle were improved. The results of optimized suspension system and variations of geometric parameters due to road roughness and different steering angles were presented in ADAMS and the results of optimized and conventional suspension systems during various driving maneuvers were compared. The simulation results indicate that the camber angle variations decrease by the optimized suspension system, resulting in improved handling and ride comfort characteristics. | M. Mahmoodi-Kaleibar I. Javanshir K. Asadi A. Afkar A. Paykani | 2013 | Journal of Central South University2013，20，4： | 24 |
| 2 | Dynamic rupture and crushing of an extruded tube using artificial neural network(ANN)approximation method显示文摘A numerical study of the crushing of thin-walled circular aluminum tubes has been carried out to investigate the crashworthiness behaviors under axial impact loading. These kinds of tubes are usually used in automobile and train structures to absorb the impact energy. Previous researches show that thin-walled circular tube has the highest energy absorption under axial impact amongst different structures. In this work, the crushing between two rigid flat plates and the tube rupture by 4 and 6 blades cutting tools is modeled with the help of ductile failure criterion using the numerical method. The tube material is aluminum EN AW-7108 T6 and its length and diameter are 300 mm and 50 mm, respectively. Using the artificial neural network(ANN), the most important surfaces of energy absorption parameters, including the maximum displacement of the striker, the maximum axial force, the specific energy absorption and the crushing force efficiency in terms of impact velocity and tube thickness are obtained and compared to each other. The analyses show that the tube rupture by the 6 blades cutting tool has more energy absorption in comparison with others. Furthermore, the results demonstrate that tube cutting with the help of multi-blades cutting tools is more stable, controllable and predictable than tube folding. | Javad Marzbanrad Behrooz Mashadi Amir Afkar Mostafa Pahlavani | 2016 | Journal of Central South University2016，23，4： | 2 |
| 3 | Geometry optimization of double wishbone suspension system via genetic algorithm for handling improvement 显示文摘 | AFKAR A MAHMOODI-KALEIBAR M PAYKANI A | 2012 | Journal of Vibroengineering2012，14，2： | 1 |
| 4 | The respiratory arsenate reductase from Bacillus selenitireducens strain MLS10显示文摘 | Afkar E Lisak J Saltikov C | | 0，，01： | 1 |
| 5 | The respiratory arsenate reductase from Bacillus selenitireducens strain MLS10显示文摘 | Afkar E Lisak J Sahikov C | 2003 | FEMS Microbiology Letters2003，226，1： | 1 |
| 6 | Toxicological response of the green alga Chlorella vulgaris to some heavy metals显示文摘 | AFKAR E ABABNA H FATHI A A | 2010 | American Journal of Environmental Sciences2010，6，3： | 1 |
| 7 | Potential antifibrotic effects of AT1 receptor antagonist, losartan, and/or praziquantel on acute and chronic experimental liver fibrosis induced by Schistosoma mansoni显示文摘 | Naglaa M El‐Lakkany Walaa El‐Maadawy Afaf Ain‐Shoka Afkar Badawy Olfat Hammam Fatma Ebeid | 2011 | Clinical and Experimental Pharmacology and Physiology2011，，10： | 1 |
| 8 | Design and energy absorption enhancement of vehicle hull under high dynamic loads显示文摘V-shape hulls are widely used in peacekeeping efforts such as demining vehicles in order to deflect the blast energy and reduce the effects of mine blast. Blast resistant design and energy absorption enhancement of V-shape plates were carried out using finite element analysis package ABAQUS. Various geometries of V-shape plates with and without interlayer of materials like Al-foams and honeycomb were employed to analyze their effects on the deformation of the plate and applied stresses and strains. The results obtained show that application of metallic foams leads to better response of the plate and consequently results in more energy dissipation, less dame to vehicle and enhances crew survivability. | Mohammad-Ali Saeimi-Sadigh Amin Paykani Amir Afkar Dehghan Aminollah | 2014 | Journal of Central South University2014，21，4： | 0 |
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