KOEN
Kyungpook National University · DROM Lab

Design & Reliability of
Off-road Machinery Lab노외기계설계 및 신뢰성평가 연구실

From the roots of off-road machinery design & reliability to gear/transmission dynamics, PD pumps & flow meters, and physics-informed AI precision fluid control — connecting theory, testing, and the field.

At a Glance
Lab
Off-road Machinery (DROM)
PI
Prof. Sung-Bo Shim
Focus
Design · reliability · control
Industry
EVER Co., Ltd. (KNU)
Output
70 papers · 6 patents · 27 projects
70Publications
6Patents
27Projects
1Spin-off company

About the Lab

The Design & Reliability of Off-road Machinery Laboratory (DROM Lab) centers on the design, analysis, and reliability assessment of machinery operated off the road — tractors, combines, and heavy construction equipment. We integrate gear & transmission dynamics, precision design of PD pumps & flow meters, and physics-informed AI sensorless fluid control, so that lab theory reaches real products and the agricultural and industrial field. The accumulated results are commercialized as the core technology of EVER Co., Ltd., a KNU Holdings subsidiary.

Research Areas

01

Off-road Machinery Design

Precision design of tractor/combine/heavy-equipment drivetrains, MBD and structural analysis.

02

Reliability & Life Assessment

Accelerated-life, corrosion, durability testing and load-measurement-based reliability with robust design.

03

Gear & Transmission Dynamics

Dynamic factor & transmission-error prediction, planetary transmissions, gearbox churning loss.

04

PD Pump & Flow Metering

Leakage modeling and optimal design of rotary-clap, oval-gear, lobe, and vane pumps/meters.

05

Sensorless Fluid Control

±1% volumetric dosing using pump drive data and AI virtual sensors.

06

Physics-informed AI · Smart Ag

Physics + AI hybrid modeling for precision spraying and smart-farm automation.

See the Research Areas page for details.

Industry Collaboration

SPIN-OFF · KNU Holdings Subsidiary

EVER Co., Ltd. — Physics-informed Vertical AI for Fluid Machinery

A faculty start-up / research-institute company founded in 2023 on the lab's core technology. Its sensorless dosing and precision flow-metering solutions expand into F&B dispensers, precision-spraying modules, and smart-farm nutrient supply.

Core TechPCT-patented sensorless volumetric control core
Field Proof35 spraying modules delivered to BULS Co. (2nd sales year)
GovernmentPaid precision-spraying R&D with NIAS (orchard/open-field)
Products±1% precision dispenser · compact oval flow meter · spraying module

Members & Outreach

Members · Admissions

Sung-Bo ShimPI · Associate Professor
Graduate StudentsM.S. / Ph.D.
Undergrad ResearchersInterns

We continuously recruit graduate and undergraduate researchers interested in off-road machinery, fluid machinery, and AI.

Service & Outreach

  • Director, Korean Society for Agricultural Machinery · Editorial Board, J. of Biosystems Engineering
  • Academic Director, Korean Society for Machine Tool Engineers (former Editorial Board)
  • Editorial Board, Journal of Agriculture & Life Science
  • Evaluation & advisory committees for RDA, IPET, KITECH, and others

Join Us · Graduate Admissions

Dept. of Bio-Industrial Machinery Engineering, KNU · Design & Reliability of Off-road Machinery Laboratory

Lab Website Google Scholar