@techreport{oai:jaxa.repo.nii.ac.jp:00002753, author = {国益, 徹也 and 澤田, 秀夫 and 河野, 敬 and Kunimasu, Tetsuya and Sawada, Hideo and Kono, Takashi}, month = {Mar}, note = {航空宇宙技術研究所0.2m超音速風洞は、超音速で高レイノルズ数を得るために低温環境下でも運転が出来るような技術を採用している。現段階では本風洞に装備されている可変ノズルジャッキ装置の潤滑剤が低温仕様ではないため、実用化のための予備試験として同等のジャッキ装置を設計し、低温環境でも有効と思われる潤滑剤MoS2を使用して実際に低温環境下での耐久試験を行った。軸受、ボールネジ、歯車などの主な駆動部分の固体潤滑剤の十分な耐久性の有無を調べたが、潤滑剤の残像量がほとんどなくなっている状態においても母材には摩耗・損傷は見られず、潤滑剤の有効性は認められた。, This experiment is to investigate the effect of the solid lubricant applied on the principal jack driving division of bearing, ball screw or gear, and researched for the adequate durability of the selected MoS2 as a lubricant. As a result, it has been found that there were some worn down of the lubricant depending on the position. However with the condition that lubricant remaining is barely left, there was no anomaly such as abrasion or damage confirmed on the base material and consecutively, the usefulness of the lubricant has been verified. But the result of the experiment indicates that for the experiment this time, with the cryogenic temperature solution being applied for the test piece, it is difficult to evaluate the extent of the lubricant remaining life. Furthermore, the result has been lead practically by the continuous running and for the endurance test this time and the experiment conditions, which might occur for the actual wind tunnel operation, such as repetition of normal temperature and cryogenic temperature in continual operation etc, are not included in this experiment. Thus it can be expected to have a faster lifetime than the experiment this time. Accordingly, it appears that more experiments are required such as the one with a different lubricant condition which eventually leads to destruction, or the one that several test pieces with the same solution as this experiment including non-lubricant condition are prepared and operate until reaching to destruction with regular checks of the transitions., 資料番号: AA0047424000, レポート番号: JAXA-RM-03-029}, title = {低温環境におけるジャッキ装置耐久試験:0.2m超音速風洞可変ノズル制御用ジャッキ装置について}, year = {2004} }