The technological preparation of production (TPV) is one the key stages product life cycle (LPL) when designing and developing new aircraft engines. TPV system foresees use following instruments: CAD/CAM/CAE systems to ensure implementation operations: automated design, engineering calculations; Product Data Management (PDM) data management; Enterprise resource planning (ERP) for corporate plan...

The key objective of the article is to design and build a small shredding machine that conceptually designed with focus on production dry leaves, areca chopped materials, worm compost. This idea was produced by taking into account four slicing machines various operations operating procedures. consideration for customers' safety. A three-stage motor, bearings, cutter, structural frame, spur gear...

Recently, bicycles are used as exercising machines and traffic vehicles. Planetary gear trains can be used as the transmission systems with multi-speed for bicycles. The purpose of this work is to propose a design methodology for the design of automatic three-speed gear hubs with planetary gear trains for bicycles. First, applying the check list method (combining and extending methods), the des...

With the continuous development of national economy, big gear was widely applied in metallurgy and mine domains. So, big gear plays an important role in above domains. In practical production, big gear abrasion and breach take place often. It affects normal production and causes unnecessary economic loss. A kind of intelligent test method was put forward on worn big gear mainly aimed at the big...

Abstract Contour bevel gears have the advantages of high coincidence, low noise and large bearing capacity, which are widely used in automobile manufacturing, shipbuilding construction machinery. However, when surface quality is poor, effective contact area between gear mating surfaces decreases, affecting stability fit thus transmission accuracy, so it great significance to optimize contour ge...