KIMM develops core technologies to localize the “heart” of next-generation rotorcraft
KIMM develops core technologies to localize the “heart” of next-generation rotorcraft
https://www.eurekalert.org/news-releases/1132961
Publish Date: 2026-06-22 14:01:00
Source Domain: www.eurekalert.org
Korea has developed, for the first time, fundamental design and analysis technologies for four key components of power transmission systems that determine the performance and durability of rotorcraft, such as helicopters, which fly using rotating wings. The achievement is expected to lay the groundwork for technological self-reliance in core aviation power transmission components, which have so far been entirely dependent on overseas imports, and to contribute significantly to strengthening national defense technology security through localization.
The Korea Institute of Machinery and Materials (KIMM, President Seog-Hyeon Ryu) announced that a research team led by Dr. Hanmin Lee, head of the Department of Industrial Machinery DX under KIMM’s Virtual Engineering Platform Research Division, has developed fundamental technologies for four key components of next-generation rotorcraft power transmission systems: clutches, gears, housings and bearings.
A power transmission system is a core device that transfers power from a rotorcraft engine to the rotor, the rotating wing similar to a propeller. Such systems must meet demanding technical requirements for high-speed operation and lightweight design. The KIMM research team developed independent design and analysis technologies for each of the four components and completed validation through prototype fabrication and performance testing.
For the clutch, the team developed design and analysis technologies for both individual components and the overall system. It also secured fundamental technologies to improve the heat resistance, low-loss performance and wear resistance of dry and wet friction materials. The performance and reliability of the developed technologies were verified through static and durability tests.
For the gear, the team developed body-shape design and analysis technologies for high-speed, lightweight operation, as well as hybrid dynamic analysis…
