top of page

Meet the Team

John T. Evans IV

Assistant Professor

John is an Agricultural Engineer with a teaching and research appointment in the Department of Agriculture and Biological Engineering. He received his Ph.D in 2018 from the University of Nebraska in Biological Systems Engineering. 




Cheyenne Simmons

MS student

Cheyenne Simmons is from Florence, Alabama and is pursuing a Masters in Agriculture System Management Research to better understand how Technology can improved our everyday Agriculture systems under Dr. Evans. She received her Bachelors from Mississippi State University in Agriculture Engineering, Business, and Technology with a emphasis in Enterprise Management. 


Nathan Sprague

MS student

Nathan is pursuing a Master of Science in Agricultural & Biological Engineering. His research involves the development of an open-source inter-row navigating and sampling robot. He recieved his undergraduate degree in Agricultural Engineering at Purdue. Nathan has been involved in the Purdue Quarter Scale team, where he has served as a co-captain and is currently an officer. Nathan's hobbies include programming and distro hopping. After graduation, Nathan would like to get an industry job working on autonomous systems in agriculture.



Michael Mardikes

Ph.D student

Michael is currently pursuing his PhD in mechanical engineering. He received his B.S. in mechanical engineering from the University of Missouri in 2020 and his M.S. in mechanical engineering from the University of Missouri – Kansas City in 2022. His research is focused on developing autonomous agriculture solutions. Michael likes to spend his time making robots, cheering on the Kansas City Chiefs, and flying. 


Professional Portrait.jpg

TJ Wiegman

Direct to Ph.D student

Timothy "TJ" Wiegman is a Ph.D. student in Agricultural and Biological Engineering. He received his B.S. in Engineering Physics (Electrodynamics) from Point Loma Nazarene University in 2020, then worked as an electronics design engineer until enrolling at Purdue. His research interests include agricultural automation, robotics, and artificial intelligence.



Past Team Members 

Eric Kong 

Graduate Research Assistant

Eric is currently pursing a Master of Science in Agricultural & Biological Engineering. For his research, he is modeling the environmental and economic impact of conventional and autonomous agricultural machinery in row crop production systems.  He received his undergraduate degree from Purdue’s ABE department in 2019. Throughout his academic career, he has been involved with the Quarter Scale Tractor Team as a member and most recently, technical mentor. He enjoy playing tennis, PC gaming, and building mechanical keyboards during my free time. After graduation, his tentative plan is to get an industry job and then determine if he want to pursue a PhD.



Logan Huesinger

Graduate Research Assistant

Logan is a second year master student working with long range radio and gps positioning in addition to working with ROS robotics. He graduated from Purdue with an undergraduate degree in agricultural engineering focused in machine systems. He enjoys playing rugby for the Purdue team and working with the Purdue Utility Platform in his free time. 



Ziping Liu

Ph.D student, co-advised with Dr. Greg Shaver

Ziping is a Ph.D. candidate in Mechanical engineering. He received his B.S. in Mechanical Engineering from Purdue University and Shanghai Jiao Tong University in 2017. His research interest includes agricultural vehicle automation, robotics, and machine vision.


bottom of page