This paper presented some steps to get more insight into the effect of meshing damping on the dynamic response and noise emission of a two-stage gearbox transmission system. For this purpose, two variants of the model with different gear materials, one with plastic gears and one with steel gears, were considered. Both variants were designed for the same number of cycles of operation with similar root and flank safeties. The forced response analysis of the models was carried out and the exciting reaction bearing forces were calculated to evaluate which model can achieve better NVH characteristics results with lower noise emission from the housing.
Wind power has emerged as one of the most important sources of renewable energy in recent years. The global wind power capacity was estimated to be 837 gigawatts in 2021 (statista.com). In the United States alone, wind is the largest source of renewable electricity, providing 10.2 percent of the country’s electricity and still growing (cleanpower.org/facts/wind-power/). However, to ensure maximum power generation, the efficiency and reliability of the wind turbine are critical.
Heidenhain’s new PlantMonitor is a digital solution to aid the manufacturing shop floor. Now available for companies interested in simultaneously monitoring and analyzing production data at multiple sites utilizing machine tools where at least one is equipped with a Heidenhain TNC control/StateMonitor software combination per site, this new PlantMonitor can aggregate the data onto one screen for review. Machine tools using even non-Heidenhain controls can be included and monitored.
Gear noise is a common evil any gear manufacturer must live with. It is often low enough not to be a major problem but, at times, gear whining may appear and then, tracking the source and, especially, curing the ill can be tricky at best.