Abstract − The pitch measuring accuracy for gear measuring instruments (GMIs) is evaluated by measuring a calibrated artifact. We proposed a novel artifact which called multiball artifact (MBA). The MBA is composed of the pitch balls assumed to gear teeth and the reference axis assumed to a center axis of gear. The MBA can be calibrated more accurate than a conventional pitch artifact. When the...

The bearing capacity of a new double ring reducer increases with the increase of load because of the elastic deformation of the gear tooth. In order to solve the problem of its bearing capacity quantificationally, the concept of the maximal bearing capacity is put forward. Starting with that the single tooth bending stress is up to the bending fatigue strength, a mathematical model to determine...

Design solutions for the shape of gear bodies depend on several factors such as size wheel, material, production method or use. Cast forged welded gears are used larger wheels. One requirements is weight reduction. Such an effort can be achieved by changing dimensions given while maintaining required stiffness gearing. The paper devoted to problem optimizing in order reduce gears, but best poss...

Gear failure caused by traveling wave resonance (TWR) generally occurs quite suddenly and causes catastrophic results in aero-engines. In this study, the TWR characteristics stress distribution of a high-speed bevel gear an aero-engine are analyzed detail means experiments simulations. Based on acoustic waveguide system dynamic test system, fatigue monitoring experiment central drive is carried...

The ignition system is a that greatly affects the performance of vehicle. Capacity Discharge Ignition (CDI) component in works to set right timing, therefore combustion can be maximized. This study aimed compare use factory CDI with from another vehicle, namely 110 cc Shogun, determine 125 GL Max motorbike including torque, power, and fuel consumption efficiency. data collection was carried out...

In this study, a 42-degree-of-freedom (42-DOF) translation–torsion coupling dynamic model of the wind turbine’s compound gear transmission system considering time-varying meshing friction, stiffness, damping, error and backlash is proposed. Considering different between internal external teeth planetary gear, stiffness calculated by using cantilever beam theory. An improved friction takes into ...

Teeth disengagement or back-side teeth engagement induced by backlash reduces the transmission quality and dynamic performance of gear systems, accurate interpretation multi-state meshing behavior can provide guidance for structural optimization evaluation. Therefore, system is elaborated. A new nonlinear model a spur with five-state established based on time-varying contact ratio. The stiffnes...