Studies to evaluate low-noise Formate spiral bevel gears were performed. Experimental tests were conducted on a helicopter transmission test stand. Low-noise, Formate spiral bevel gears were compared to the baseline OH-58D spiral bevel gear design; a high-strength design; and previously tested, low-noise designs (including an original low-noise design and an improved-bearing-contact, low-noise design). Noise, vibration and tooth strain tests were performed.
展开▼
