Technological solution to profile and generate the teeth of central gear for precessional gear drives

This paper depicts the research conducted at a micro-pilot scale on autochthonous cultures in order to develop adequate technological solutions for the treatment of wastewater resulting from shrimp cultures (Palaemonidae) that would ensure the protection of the Black Sea ecosystem and constitute an applicable tool for the development of aquaculture in Romania. The proposed objectives were attained by adopting an integrated system of marine cultures shrimps-mussels-macrophyte algae, followed by a conventional chemical treatment step using aluminium sulphate recovered from metallurgical slags. This system together with wastewater treatment ensures an optimum development of species and a minimum load of pollutants in the aquatic environment.

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Creating A Subpoena-Proof Diary: A Technological Solution to A Legal Problem

SSRN Electronic Journal ◽

10.2139/ssrn.266153 ◽

2001 ◽

Author(s):

James D. Miller ◽

Lixin Gao

Keyword(s):

Technological Solution ◽

Legal Problem

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Technological Solution Development During the COVID-19 Pandemic: a Case Study in an IoT Lab

2020 IEEE Global Conference on Artificial Intelligence and Internet of Things (GCAIoT) ◽

10.1109/gcaiot51063.2020.9345864 ◽

2020 ◽

Author(s):

Rafael L. Patrao ◽

Carolina Sartori da Silva ◽

Gustavo P.C.P. da Luz ◽

Francisco L. de Caldas Filho ◽

Fabio L.L. de Mendonca ◽

...

Keyword(s):

Technological Solution

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Geometrical design of skew conical involute gear drives in approximate line contact

Proceedings of the Institution of Mechanical Engineers Part C Journal of Mechanical Engineering Science ◽

10.1243/09544062jmes1340 ◽

2009 ◽

Vol 223 (9) ◽

pp. 2201-2211 ◽

Cited By ~ 11

Author(s):

S H Wu ◽

S J Tsai

Keyword(s):

Power Transmission ◽

Design Approach ◽

Line Contact ◽

Contact Sensitivity ◽

Axis Ratio ◽

Edge Contact ◽

Involute Gear ◽

Surface Durability ◽

Gear Drives ◽

Conical Gear

A novel design for skew conical involute gear drives in approximate line contact is proposed. Such a drive has a contact ellipse with a large major-to-minor-axis ratio, which allows it to overcome the weakness of conical gear drives for application in power transmission. This gearing design approach is characterized by reduced edge contact sensitivity and increased surface durability. The edge contact sensitivity that can arise with this kind of gear drive due to assembly or manufacturing errors is evaluated by analysing the value of the shift of the line of action caused by such errors. The surface durability is evaluated by calculating the Hertz stress. Some guidelines are developed based on the analysis of the influence of the gearing parameters on the edge contact sensitivity and the surface durability made possible using this design approach for conical gear drives in the approximate line contact. The guidelines are summarized and, finally, a practical example is given to demonstrate the feasibility of the approximate line contact design.

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Comparison Experiment for Two Kinds of Hypoid Gear Drives

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.20-23.1385 ◽

2010 ◽

Vol 20-23 ◽

pp. 1385-1390

Author(s):

Hong Bin Yang ◽

Xiao Hong Wang ◽

Zong De Fang

Keyword(s):

Working Conditions ◽

Test Object ◽

Hypoid Gear ◽

Gear Drive ◽

Comparison Experiment ◽

Gear Drives

To develop a good quality of hypoid gear drive, the authors test the vibration and noise of two kinds of hypoid gear drives under different working conditions. The test object is a pair of hypoid gear drive used in the back axle of one minivan and a designed hypoid gear drive with high teeth based on the former. The results indicate that the hypoid gear drive with high teeth has lower vibration and noise.

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