[A-CG54] Promotion of climate and earth system sciences using manned/unmanned aircrafts

[ACG54-P03] Demonstration of Helicopter Vibration Reduction Technology and Its Application to Atmospheric Environment Measurement

Yuji Yoshizaki¹, Shigeru Sunada², Hirokazu Ishii³, Sho Ohata², Baboer Yisikandeer², Ruichen Zhou², *Ryota Kikuchi^4,2, Michihiro Mochida² (1.Mitsubishi Heavy Industries, Ltd., 2.Nagoya Univ., 3.JAXA, 4.DoerResearch, Inc.)

Keywords:Helicopters, Vibration Reduction Technique, Atmospheric Environment Measurement

In this study, we investigate a vibration reduction technique for helicopters, focusing on rotor-induced oscillations that can adversely affect pilots, crew, and onboard instruments. Such vibrations also pose a serious concern for scientific missions requiring precise measurements. Initially, we validated the effectiveness of our vibration reduction approach using a radio-controlled model and numerical simulations, confirming a reduction in oscillation. As a next step, we plan to conduct tests with a full-scale helicopter to further evaluate the vibration reduction method. During these tests, we will also install an atmospheric measurement device (Partector 2 Pro) to examine how helicopter vibrations might influence data collection.

Before integrating the measurement device on an actual helicopter, we carried out comparative measurements in Nagoya during February and March 2024. In these measurements, we evaluated the accuracy and characteristics of the Partector 2 Pro by comparing it with a scanning mobility particle sizer (SMPS) for nano-particle monitoring. In this presentation, we will report on the performance of the helicopter vibration reduction technique, its influence on atmospheric measurements, and prospects for applying this method in scientific observations.