Overview
Rail Roughness Measurement Challenges
Rail roughness measurement is vital for noise prediction, with European standards in place but none in Korea.
Manual trolleys cause errors, variability, and safety risks.
Automation offers efficient management but must solve sensor reference variation issues.
Core Competencies
Purpose
The ARC-rc aims to prevent rail noise issues by accurately analyzing rolling noise through automated measurement of acoustic roughness and corrugation at a constant speed along designated rail sections.
Multi-sensor fusion with multi-point measurement delivers 0.1 μm accuracy and acoustic roughness spectrum repeatability within ±2 dB, ensuring consistent and reliable results.
Unmanned autonomous operation minimizes track access for safer measurement.
Constant-speed capability (15 km/h travel, 7.2 km/h measurement) with automatic control and remote operation enhances efficiency.
Expected Benefits
Reduced Maintenance Costs
– Early detection and mitigation of rolling noise and minor corrugation lower expenses.
Import Substitution & Tech Independence
– Replaces costly foreign devices and secures technological self-reliance.
Improved Safety
– Minimizes operator presence on tracks, preventing accidents.
Lower Operator Fatigue
– Fully automated and remote-controlled operation reduces physical strain.
TRL 7
Full-scale prototype demonstrated in a real environment
Contact
Korea Railroad Research Institute (KRRI)
Global Business Department
Dr. Wootae Jeong
E-mail: wjeong@krri.re.kr