Session: Research Posters

Paper Number: 109361

109361 - Designing a Mechanism of Lifting Suspension in Wheeled Armoured Vehicles 

Swimming for amphibious vehicles is important for both attack/defense sustainability and crew life during operation. In order to clear the untouched soil which controls by enemy lines may be full of mines or improvise explosive device (IED), the fortification vehicles are very important to eliminate stated threads. The wheels of the amphibious vehicle due to the buoyancy force in the water form as an obstacle during the movement of the vehicle in the water according to the Archimedes Principle. There is a risk of immersing the vehicle and the vehicles it carries on it. To avoid those potential attacks, a robust designed vehicles are inevitably crucial.Therefore, designs had been made in the past by removing the suspension arms and reducing the area forming the resistance, but different solutions have been sought as the problem cannot be solved. As a solution, the rack and pinion gear design mechanism used such in steering systems has been tested to withstand the high force values from the wheels and suspension elements. This mechanism design approach was used for the first time for such systems exposed to force of this magnitude. Firstly, to understand the goodness of the system efficiency and reliability, the analytical calculations are being done by useful in terms of compare the analysis solutions. The mathematical calculation approachs consist of the most common used Lewis Formula and AGMA Standards. The reason for the usage of Lewis and AGMA Standards are being referenced by so examiner and researcher. Secondly, three different anaylsis steps are being implemented by ADAMS as kinematic wise, ANSYS as stress consideration wise and FLUENT as fluid dynamic wise. For ADAMS, the mechanism behaviour and success has been observed then on the grounds of accuracy the solutions of ANSYS, the stress analysis has been done according to minimum and maximum torque of the system. As design comparison with or without the lifting up mechanism, FLUENT pressure based solver has been deployed in order to release the swimming simulation of vehicle. The studies have shown that the developed design makes 2,5 time less unbalanced body behaviour than the untouched system. It gaines an impression by crew health, vehicle health and mission success. Using the common or easy manufactured parts can help to make more profit related to cost. Hence, due to cost effectiveness, the system design can be achieveable in terms of project angle. It is seen that analytical solutions and analysis solutions overlap with the proposed solution that can be used in all vehicles and industrial applications. This pioneering work is applicable for the design of products in the defense industry.

Presenting Author: Ahmet Cagkan Cevik ASELSAN Inc.

Presenting Author Biography: The presenting author is an engineer with 8+ years of experience in mechanical design with the Mechanical Engineering master degree and working as a mechanical design engineer at ASELSAN

Authors:

Ahmet Cagkan Cevik ASELSAN Inc.