Modular Hydrostatic Vehicle used for Engineering Technology

Israa Azzam; Keith Pate; Farid Breidi; Walker Murphy; Jose Garcia

Download Paper | Permalink

Conference: 2022 ASEE Annual Conference & Exposition
Location: Minneapolis, MN
Publication Date: August 23, 2022
Start Date: June 26, 2022
End Date: June 29, 2022
Conference Session: ETD Technical Session 5 - ET Curriculum and Programs II
Page Count: 15
DOI: 10.18260/1-2--40820
Permanent URL: https://peer.asee.org/40820
Download Count: 341

Israa joined the School of Engineering Technology at Purdue University as a visiting scholar in September 2021. She conducts research on the design, modeling, simulation, and control of complex fluid power and mechanical systems. Prior to her appointment as a visiting scholar at Purdue, Israa was a graduate research and teaching assistant at the American University of Beirut (AUB) Lebanon from 2019 to 2021. She conducted research on dynamic system control theory, where she designed and validated robust algorithmic controllers to tackle one of the most concerning problems: energy-performance optimization.

Israa received her B.S degree in Mechanical Engineering from Beirut Arab University (BAU) Lebanon in 2019. In 2021, she received her M.S degree in Mechanical Engineering "Robust Control" from the American University of Beirut (AUB) Lebanon. She is in the process of pursuing a Ph.D. in Mechanical Engineering Technology from Purdue University. Her primary Ph.D. research will focus on designing Interactive Mixed Reality Modules for addressing spatial visualization and understanding complex fluid power systems in Engineering Technology.

visit author page

biography

Jose Garcia

visit author page

Dr. Jose M. Garcia-Bravo graduated from Los Andes University in Bogota, Colombia with a B.Sc. in Mechanical Engineering in 2002. He moved to the United States in 2003 and completed his M.Sc.E in 2006 and Ph.D in 2011 from Purdue University. He worked as a Research Assistant Professor at IIT in Chicago from 2011-2012. In 2012 he returned to Purdue to serve as an Assistant Professor at the Purdue Polytechnic Kokomo. Dr. Garcia-Bravo, joined the School of Engineering Technology at Purdue main campus in 2015, he is currently an Associate Professor for the Mechanical Engineering Technology program where he has a special focus on fluid power (hydraulic systems) research and instruction.

Dr. Garcia-Bravo investigates how hydraulic systems can improve the performance and efficiency of heavy duty vehicles. He also researches techniques for the creation of flexible components with embedded sensors using additive manufacturing for robotics, rehabilitation and industrial applications. During his time at Purdue, he has been awarded several grants to develop technology for the improvement of fluid power systems. As the director of his research group at Purdue, he received funding for the development of contamination resistant valves for the throttle control of fighter jet engines. The resulting design of this project generated a modified poppet valve that improved its response time from 40ms to 10ms. He has developed with his students an IoT irrigation system for water deprived areas in Arequipa, Peru. He has also conducted research in novel methods for the hybridization of electrically powered drive trains using hydraulic accumulators. Most recently he is developing an autonomous micro-drilling robot for underground applications.
More recently, he has been studying the principles for the creation of startup companies and have been personally interacting with industry professionals in the truck, automotive and off-road sectors.

visit author page

author page

Farid Breidi Purdue University at West Lafayette (PPI)

Download Paper | Permalink

Abstract

This work presents the design of a modular educational demonstrator that aims to enhance the learning experience of engineering technology students by incorporating hands-on learning activities in STEM Education. The students will be required to design and assemble a modular remote-controlled hydraulic vehicle to achieve various tasks. These tasks include a sprint race, a mountain climb, path following, and obstacle avoidance. The proposed design embodies a small vehicle chassis comprising modular hydrostatic transmission. Previously designed educational demonstrators lacked the option for students to customize various components and evaluate the system's performance based on their design decisions. The modifications made to this demonstrator allow the students to design and experiment with different component sizing and connections, resulting in a hands-on tool that can showcase the implementation of their calculated designs in a real-world setting. This demonstrator utilizes an open chassis design to allow interchangeability and speculation during testing and operation. All the hydraulic and electric components are mounted to the top of the chassis, allowing students to observe how the individual components operate. The vehicle is electrically powered using a 12V DC motor that acts as the prime mover of the hydrostatic transmission. The involved hydraulic units, i.e., pump and motor, are interchangeable, where they have counterparts with different ports, shaft sizes, and dimensions but different displacements. Thus, replacing the pump and motor with their counterparts provides various pressure and flow to the hydraulic system, thus achieving different output maximum speeds. The controller allows the operator to control the vehicle's speed and direction via a proportional control valve and a servo motor. The proportional control valve regulates the flow entering the circuit, which varies the vehicle's speed. The valve can be actuated in three positions, allowing the operator to move forward, backward, and brake. An electrical servo motor is attached to the vehicle's front wheel to control the steering. The modular design increases the vehicle's utility as an educational instrument by allowing students to size components, implement them on the vehicle, and experience the functionality of their designs on a working demonstrator.

Citation
Format

Murphy, W., & Pate, K., & Azzam, I., & Garcia, J., & Breidi, F. (2022, August), Modular Hydrostatic Vehicle used for Engineering Technology Paper presented at 2022 ASEE Annual Conference & Exposition, Minneapolis, MN. 10.18260/1-2--40820

TY - CPAPER
AB - This work presents the design of a modular educational demonstrator that aims to enhance the learning experience of engineering technology students by incorporating hands-on learning activities in STEM Education. The students will be required to design and assemble a modular remote-controlled hydraulic vehicle to achieve various tasks. These tasks include a sprint race, a mountain climb, path following, and obstacle avoidance. The proposed design embodies a small vehicle chassis comprising modular hydrostatic transmission. Previously designed educational demonstrators lacked the option for students to customize various components and evaluate the system's performance based on their design decisions. The modifications made to this demonstrator allow the students to design and experiment with different component sizing and connections, resulting in a hands-on tool that can showcase the implementation of their calculated designs in a real-world setting. This demonstrator utilizes an open chassis design to allow interchangeability and speculation during testing and operation. All the hydraulic and electric components are mounted to the top of the chassis, allowing students to observe how the individual components operate. The vehicle is electrically powered using a 12V DC motor that acts as the prime mover of the hydrostatic transmission. The involved hydraulic units, i.e., pump and motor, are interchangeable, where they have counterparts with different ports, shaft sizes, and dimensions but different displacements. Thus, replacing the pump and motor with their counterparts provides various pressure and flow to the hydraulic system, thus achieving different output maximum speeds. The controller allows the operator to control the vehicle's speed and direction via a proportional control valve and a servo motor. The proportional control valve regulates the flow entering the circuit, which varies the vehicle's speed. The valve can be actuated in three positions, allowing the operator to move forward, backward, and brake. An electrical servo motor is attached to the vehicle's front wheel to control the steering. The modular design increases the vehicle's utility as an educational instrument by allowing students to size components, implement them on the vehicle, and experience the functionality of their designs on a working demonstrator.
AU - Walker Murphy
AU - Keith Pate
AU - Israa Azzam
AU - Jose Garcia
AU - Farid Breidi
CY - Minneapolis, MN
DA - 2022/08/23
PB - ASEE Conferences
TI - Modular Hydrostatic Vehicle used for Engineering Technology
UR - https://peer.asee.org/40820
DO - 10.18260/1-2--40820
ER -