Your Selections

B, Ashok
Show Only

Collections

File Formats

Content Types

Dates

Sectors

Topics

Authors

Publishers

Affiliations

Events

   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Design and Development of a Dry Sump Lubrication System for a Formula SAE Race Car

VIT University-Rishabh Khanna, Akshyt Bimal Kumar, Kartik Vijaykumar, K Nantha Gopal, Ashok B, Sahil Sharma, Vignesh Ravi
Published 2019-01-09 by SAE International in United States
A Formula student team aims to develop and improve their designs every year, as far as the powertrain aspect is considered performance output and enhancement is the primary aim, and for engine to perform better, the health of the engine is the most important parameter; hence the lubrication system of the vehicles powertrain should be improved to get the most out of the engine. The primary challenge for the development of a new lubrication system was the inability to replicate the performance given by stock wet sump with the self-designed custom dry sump. However, the advantages can outnumber the cons of implementing a custom dry sump lubrication system. The work brought together in this paper highlights the meticulous design procedure for implementing a custom made dry sump system onto a 4-cylinder in-line Honda CBR600RR engine. Moreover, the research paper brings about the extensive process undertaken which includes theoretical calculations, computational analysis and experimental validation of the whole assembly the dry sump system. The design procedure makes use of software like MATLAB, Star CCM+ and SolidWorks.…
This content contains downloadable datasets
Annotation ability available
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Closed Loop Throttle Opening Angle Estimation Strategy by Considering Torque Demands from SI Engine

Department of ECE, SITAMS, Chittoor, AP-C Kavitha
VIT University, Vellore, India-Ashok B, S Denis Ashok
Published 2018-07-09 by SAE International in United States
Electronic throttle control is extensively preferred to vary the air intake in the engine manifold for regulating the torque in order to obtain the better vehicle response, high performance in terms of improving the fuel economy and trim down the emissions of the spark ignition engines. For such type of the engine control systems the throttle angle is estimation is accomplished either by pedal follower or torque based method. This work aims to develop a throttle opening angle estimation strategy in a closed loop manner using fuzzy logic approach by considering real time internal system and driver torque demands for controlling the SI engine. In present work the torque demand from internal system such as catalyst heating, cold start assist and battery voltage compensation is estimated using fuzzy logic strategy. Such intelligent system aims to replace the lookup tables associated with those systems and reduces the calibration effort. For the estimated throttle angle the electronic throttle body is evaluated in an engine test bed simulation on Matlab Simulink platform for the various accelerator pedal inputs…
This content contains downloadable datasets
Annotation ability available
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Design and Optimization of Steering Upright to Reduce the Weight Using FEA

VIT University, Vellore, India-Saksham Bhardwaj, Ashok B, Umashankar Lath, Aman Agarwal
Published 2018-07-09 by SAE International in United States
Steering upright is that part of suspension system which contains the wheel hub, and attaches to the suspension components. It is the pivot point of the steering and suspension system, which allows the front wheels to turn & more. Considering it for double wishbone suspension geometry lightweight and low fuel consumption are fundamental demands for a vehicle, especially for a racecar. This paper focuses on design optimization of steering upright (steering knuckle) targeting weight reduction with required strength and stiffness. Optimized design of upright is mandatory with appropriate material selection as well as valid finite element analysis. Optimization was performed considering static analysis of stress, strain and total deformation along with the suitable material selection. Material selection was performed by considering various parameters. In the present work, the design process is accomplished by Solidworks and analysis was performed using Ansys software. As it’s important to know the yield and material limit as well as the Factor of safety, Von Mises stress was used in presenting the stress results. Results were analyzed and design was optimized…
This content contains downloadable datasets
Annotation ability available
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Design and Development of a Restricted Intake Manifold for a Naturally Aspirated Four Cylinder SI Engine

VIT University, Vellore-Aman Agarwal, Umashankar Lath, Saksham Bhardwaj, K Nantha Gopal, Ashok B, Akshyt Bimal Kumar, Rishabh Khanna
Published 2018-07-09 by SAE International in United States
Intake manifold is one of the principal components of the engine system in the vehicle. The air intake manifold is the passage for air into the engine and thus affects the amount of air quantity. The objective of the present work is to design and development of a strong, reliable and light weight intake manifold for a multi cylinder spark ignition engine. The developed manifold will improve the airflow intake and provide equal mass flow rate in all runners to create better performance. In the present work, combinations of 1-D modeling using Ricardo Wave and CFD simulations on Star CCM+ were employed to substantiate the modeling. The designed manifold is ensured to have a throat velocity of the restrictor close of Mach 1and the plenum was simulated to have a zero velocity creating maximum pressure close to atmospheric pressure. The necessary structural strength to the intake manifold was ensured by performing FEA simulations using ANSYS software. Rapid Prototyping Technique was selected to avoid any disruption in the fluid flow and vortex formations among which Selective…
This content contains downloadable datasets
Annotation ability available
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Design and Development of Cooling System for a Formula SAE Race Car

VIT University-Rishabh Bahuguna, Tanmay Prasad, Rishabh Khanna, Akshyt Bimal Kumar, K Nantha gopal, Sushant Srivastava, Aagosh Mishra, Ashok B
Published 2018-04-03 by SAE International in United States
In Formula Student, the vehicle working parameters are quite disparate from that of a commercially designed vehicle. The inability of teams to incorporate the atypical running conditions in their design causes multiple unforeseen issues. One such condition where the teams fail to improvise upon is the cooling system. Due to the high performance requirement of the competition, multiple teams participating face recurring heating problems. Maximum efficiency from a combustion vehicle can only be achieved when the cooling system is designed to handle the increasing power demand.This paper brings forth a detailed study on the intricate design of the cooling system. The problem has been approached using both theoretical and simulation models. Firstly, NTU-ℇ method was used to calculate the overall heat transfer coefficient and the temperature drop through the radiator core. Various parameters like core size, mass flow rate of water and air, fan configurations etc., were taken into consideration. Star CCM+ software was used to perform full body analysis to study the positioning of the radiator on the race car. Following this, the theoretical…
This content contains downloadable datasets
Annotation ability available