Sep 1, 2015 · Dynamic characteristics of cracked gear systems, also known as cracked-gear rotor systems, have received increasing interests among industry and academy in the past two decades. This paper reviews published papers on the dynamics of cracked gear systems.

Mar 2, 2024 · I have successfully fixed cracked Life-Like gears by taking some K&S aluminum tubing of the proper diameter, cutting some very short pieces off (making collars), and pressing them on both hubs on of the cracked gear.

Feb 1, 2015 · In this paper, the cracked gear coupled rotor system includes two shafts, a gear pair with a tooth crack in the driven gear (gear 2) and four ball bearings. The parameters of the system are listed in Table 1 and Fig. 9, and the FE model of …

Apr 17, 2021 · Cracked gear is distorted, causing rough running and clicking noise, in addition to poor pulling ability. Sometimes the metal axle is so loose in the cracked tube that the wheel will actually fall out of the truck.

Damage to gears is basically categorized by two types; one is the damage to the tooth surface, and the other is breakage of the gear tooth. In addition, there are other specific damages, such as the deterioration of plastic material, the rim or web breakages.

May 1, 2013 · It's not unusual for a body shell to resonate to some low-level noise or vibration in a powered locomotive. It doesn't necessarily mean there is a problem in the mechanicals. You can generally damp the sound by smearing some gooshy stuff on the inside of the body shell.

This study could provide a systematic methodology and meaningful reference for the dynamic modelling, simulation and fault diagnosis of gear systems with crack failures.

Subsequently, fault features of the cracked gears were extracted by the investigation of the dynamic response. The results demonstrate the proposed method (PM) effectively monitors cracked gear system condition, and the condition indicators were sensitive to the cracked status and system resonance.

In this paper, a rigid-flexible coupled model of a single-stage planetary gearbox in normal and fault conditions are built by ADAMS software. The crack propagation path is considered a parabolic curve and the thickness of the crack decreases along the path.

Mar 27, 2024 · As the gear pair appears to have a tooth root crack that can cause vibration variation in dynamic responses, the 4 vibration indicators are introduced to analyze the cracked gear of vibration feature and failure level.