GDN-5 ROBUST NOISE CHARACTERISTICS OF GEARS DUE TO THEIR APPLICATION, MANUFACTURING ERRORS AND WEAR(GEAR DYNAMICS AND NOISE)

スポンサーリンク

概要

• 論文の詳細を見る

• Noise reduction is increasingly important in gear design, which highlights new problems in robust design of gears. The performance of gears is influenced by perturbation factors beyond the control of the designer. These perturbation factors (which often are of random character) may be divided into three categories : variation in the use of the product, i. e. torque, unit-to-unit variation, i. e. manufacturing errors, and deterioration, i. e. wear. Gears are considered robust if their qualities are not unacceptably affected by the random perturbation factors. The entry of noise as an objective in the gear design process forces the designer to consider wear of the flank along with the traditional objectives (strength, efficiency etc.). During service life, wear changes the tooth profile. The profile change, although it is small, may drastically change the transmission error (TE), which is assumed to be the major source of noise. Hence, wear might significantly change the noise characteristics of the gear. A robustness analysis of a gear is performed where the aim is to determine how design parameters influence the transmission error (noise), while the gear is exposed to perturbations. The perturbations considered in the analysis are variation in torque value, variation in flank geometry due to manufacturing and due to wear. In general, it can be stated that a gear with robust noise characteristics with respect to varying torque, manufacturing errors and wear should have some profile- and lead crowning and a large helix angle. The transverse contact ratio is a trade-off factor in the sense that both low peak-to-peak TE (PPTE) and low dispersion in PPTE can not simultaneously be achieved. Therefore, for minimization of gear noise by increasing the total contact ratio, it is better to increase the face contact ratio rather than the transverse contact ratio since high transverse contact ratio deteriorates the robustness of the gear.

• 2001-11-15

著者

• Andersson S.

  Department Of Machine Design Royal Institute Of Technology (kth)

• MACKALDENER M.

  Scania CV AB, NTS

• FLODIN A.

  United Technologies Research Center

関連論文

• GDN-5 ROBUST NOISE CHARACTERISTICS OF GEARS DUE TO THEIR APPLICATION, MANUFACTURING ERRORS AND WEAR(GEAR DYNAMICS AND NOISE)

スポンサーリンク