Results 111 to 120 of about 15,845 (244)
Gearing technology in its modern form has a history of only 100 years. However, the earliest form of gearing can probably be traced back to fourth century B.C. Greece. Current gear practice and recent advances in the technology are drawn together.
Coy, J. J. +2 more
core +1 more source
Jixie chuandong, 2009 On the basis of the developed system "CNC gear-hobbling system" that covers with CNC machining of non-circular vertical gear,the meshing theory of helical gears and tool rack-skew methods,the simultaneouscontrol strategy of hobbling three order ellipse ...
胡赤兵, 田芳勇, 操良伟
doaj
Topology of modified helical gears [PDF]
The topology of several types of modified surfaces of helical gears is proposed. The modified surfaces allow absorption of a linear or almost linear function of transmission errors.
Coy, J. J. +3 more
core +1 more source
Rotary bead dropper and selector for testing micrometeorite detectors Patent [PDF]
, 1968 Rotary bead dropper and selector for testing micrometeorite ...
Secretan, L.
core +1 more source
Advanced Rotorcraft Transmission (ART) program summary [PDF]
The Advanced Rotorcraft Transmission (ART) Program was initiated to advance the state of the art for rotorcraft transmissions. The goal of the ART Program was to develop and demonstrate the technologies needed to reduce transmission weight by 25 pct. and
Kish, J. G., Krantz, T. L.
core +1 more source
Jixie qiangduIn order to solve the problem that the traditional involute worm helical gear is prone to root fracture when the transmission ratio is too large, a new involute worm pair based on unequal modulus and pressure angle is put forward, which can increase the ...
JIN ChengKe, SUN XiaoXiao, HUANG JiaXin
doaj
Jixie chuandong, 2017 The asymmetric helical gear with a small number of teeth as a new type gear has the advantages of small volume and strong bearing capacity,but the analysis of its dynamic characteristics especially research on the influence of elastic contact impact on ...
Zhou Qi
doaj
Gear Design Effects on the Performance of High Speed Helical Gear Trains as Used in Aerospace Drive Systems [PDF]
The performance of high-speed helical gear trains is of particular importance for tiltrotor aircraft drive systems. These drive systems are used to provide speed reduction/torque multiplication from the gas turbine output shaft and provide the necessary ...
Ehinger, R. +3 more
core +2 more sources
An investigation of control strategies on gearbox damage [PDF]
, 2009 The impact of control on structural elements such as tower and blades have been thoroughly researched and the validity of analysis methods based on aeroelastic simulations is widely accepted.
Crowther, Ashley +4 more
core
Split torque transmission load sharing [PDF]
Split torque transmissions are attractive alternatives to conventional planetary designs for helicopter transmissions. The split torque designs can offer lighter weight and fewer parts but have not been used extensively for lack of experience, especially
Kish, J. G., Krantz, T. L., Rashidi, M.
core +1 more source