Showing 3 results for Maleki
E. Maleki Pour , S. Golabi ,
Volume 4, Issue 2 (6-2014)
Abstract
Nowadays, automakers have invested in new technologies in order to improve the efficiency of their
products. Giant automakers have taken an important step toward achieving this objective by designing
continuously variable transmission systems (CVT) to continuously adapt the power of the engine with the
external load according to the optimum efficiency curve of engine and reducing fuel consumption beside,
making smooth start up and removing the shock caused by changing the gear ratio and making more
pleasurable driving. Considering the specifications of one of Iranian automaker products (the Saipa Pride
131), a CVT with a metal pushing belt and variable pulleys have been designed to replace its current
manual transmission system. The necessary parts and components for the CVT have been determined and
considering the necessary constraints, its mechanism and components have been designed.
Sh. Chitsaz, H. Sadeghi Naeini, A. Nedayifard , H. Malekipour, A. Vahdad,
Volume 7, Issue 3 (9-2017)
Abstract
In this paper, the main objective is ergonomics evaluation of
automobile’s dashboard to devise suitable designs based on textures and
patterns. Undoubtedly appropriated dashboards' design based on textures
might be ended to more driving safety, in which the tactile-real and visualimplied
texture of a surface should be considered. In this study, data was
gathered by in-depth observation and questionnaires. Expert volunteers
who not only used their cars frequently, but also were fairly sensitive to the
effects of visual and tactile items in dashboard design automobile’s
manufacturers. Statistical data analyzing shows improving texture in
dashboard design has a significant influence on drivers'. The need to take
repeated glimpses in order to distinguish the operation of each button will
diminish, an issue significantly decreasing accident risk. The results show
the interaction between the product textures will be ended to users'
satisfaction and also product’s feature and performance. This study clarifies
the significance of dashboard texture, so industrial designers are expected
to work harder to make better use of textures in designing product elements.
Prof. M.h. Shojaefard, Mr. M. Maleki, Dr. M. Masih-Tehrani, Mr. A.r. Sang-Sefidi, Mr. M.m. Niroobakhsh,
Volume 8, Issue 2 (6-2018)
Abstract
A combined hydraulic engine mount and buffer is proposed in this study for use in the mid-priced vehicle. In some vehicle design projects, an engine is selected to use in a new car design. To achieve the desired vibration conditions, the mount can be redesigned with exorbitant costs and long-term research. The idea of using a buffer in the combination of the conventional engine mount is to suggest a solution with affordable price which can improve mount vibration specifications. As a case study, the engine of Renault L90 (Dacia Logan), which name is K4M engine, is selected to use in the national B class automotive platform design. This automotive platform is designed at Automotive Engineering Research Center of Iran University of Science and Technology. The hydraulic engine mount is modeled in CATIA. Some tests are done to validate the simulation results. The conventional and buffer-equipped mount characteristics, which are determined by CATIA, is imported to Adams/Vibration software to evaluate the vibration behavior of the engine mounts. The results show that the use of buffer reduces the stiffness of mount, which should be 2 to 3 times lower than engine's frequency excitation. In some directions, the buffer-equipped mount has a better modal energy and isolation characteristics.
