Effect of rotational speed on the performance of unreinforced and glass fiber reinforced Nylon 6 spur gears

Senthilvelan, S.; Gnanamoorthy, R.

doi:10.1016/j.matdes.2005.12.002

Cited by 81 publications

(31 citation statements)

References 24 publications

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“…At each moment load at least five tests were done (except 0,8 and 0,9 N·m). It is a known fact that various types of defects occur for different rotational speeds and moment loads [1,22]. This is also presented in chapter 7.…”

Section: Testing Conditionsmentioning

confidence: 92%

The effect of the teeth profile shape on polymer gear pair properties

2016

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Original scientific paper The paper presents an extensive research on two different tooth-flank geometries, i.e. involute and S-gears. A significant difference between the two analyzed geometries was observed during the lifetime testing. The tests were conducted on special test equipment with an axis distance of 20 mm. The material used for the tested gears was POM for the driver gear and PA6 for the driven gear. The same sizes of driver and driven gears were used (m = 1 mm, z = 20). Gears of this size are particularly suitable for micro-gear transmissions. The tests were carried out using different rotational speeds and torques, between 0,8 N·m and 1,5 N·m. During testing the thermal state of the gears was measured with a thermal camera. The stress and deformation analyses of the tested gears were undertaken using numerical simulations employing the finite-element method. Keywords: failure; involute gears; polymer; S-gears; temperature Utjecaj oblika profila zuba na svojstva para polimernih zupčanikaOriginal scientific paper U radu se predstavlja opsežno istraživanje dviju različitih geometrija boka zuba t.j. evolventnih i S-zupčanika. Zapažena je značajna razlika između te dvije analizirane geometrije tijekom ispitivanja njihovog vijeka trajanja. Ispitivanja su provedena na posebnoj opremi za ispitivanje s udaljenošću vratila od 20 mm. Materijal ispitivanih zupčanika bio je POM za pogonski zupčanik i PA6 za pogonjeni zupčanik. Rabljene su iste veličine pogonskog i pogonjenog zupčanika (m = 1 mm, z = 20). Zupčanici te veličine su naročito pogodni za mikro zupčanični prijenos. Ispitivanja su provedena uz različite brzine vrtnje i okretne momente, između 0,8 N·m i 1,5 N·m. Tijekom ispitivanja toplinskom se kamerom mjerilo toplinsko stanje zupčanika. Analize naprezanja i deformacije ispitivanih zupčanika provedene su numeričkom simulacijom primjenom metode konačnih elemenata.

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Section: Testing Conditionsmentioning

confidence: 92%

The effect of the teeth profile shape on polymer gear pair properties

2016

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“…Senthilvelan et al [15] say that the heat generated in gears is a result of heat and the hysteresis effect, friction, as well as the hysteresis loss increases with increase in gear rotational speed; therefore, the speed is maintained constant for all the gears to achieve single conclusion for low speed. The initial weights of the gears as well as the temperatures of the gears were measured with the contactless infra-red temperature camera (FLIR E6, FLIR Systems Inc., Wilsonville, OR, USA) before running.…”

Section: Dynamic Testingmentioning

confidence: 99%

Experimental Study on Dynamic and Thermal Behaviour of Chopped Glass, Sisal, and Flax Fiber-Reinforced Gears

Dhanushkodi

Arunagri

2018

Fibers

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Abstract:Recently, there has been rapid growth in research and innovation in natural fiber composites. The main reasons for the interest on these reinforcements over synthetic fiber reinforcements are their low environmental impact, low cost, and high flexural strength, which supports their potential across a wide range of applications. One of the promising applications of polymeric composite is polymeric gears, used in power and motion transmission work under different loads and speeds. In this work, polymeric spur gears are manufactured with various reinforcements like glass, sisal, and flax fiber in 15% and 20% weight percentage, and the gears are produced by molding process. The performance and wear of the gears are tested using a dynamic testing procedure. The tested gears are analyzed for modifications in tooth profile using scanning electron microscope. The weight loss as well as the thermal capability is studied using a contactless infra-red temperature (FLIR) camera. From the result, it is understood that the natural fiber-reinforced gears can be used for smooth and noiseless operation especially in intermittent applications.

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“…The effect of rotational speed on the performance of unreinforced and glass reinforced Nylon 6 was studied by S. Senthilevan and R. Gnanamoorthy [12]. The glass fibre reinforced gear showed improvement in mechanical strength and thermal deformation.…”

Section: Cracksmentioning

confidence: 99%

A review on failure characteristics of polymer gear

et al. 2016

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Abstract.Polymer are now widely used as substitute material for steel gear in low load devices. Its failure differs from gears made of steel, thus it is important to categorize the failures shown by polymer gears. Several previous studies noted that wear detection, microstructure surface condition monitoring, weight loss and temperature detection can be used in detecting failure of polymer gear. This article reviews the failure detection method mentioned above. Other researcher works were studied and their findings were extracted in order to identify the methods they used. The most common method used was wear detection and it was supplemented by other methods such as microstructure surface condition monitoring. Failures shown by polymer can be concluded to be tooth breakage, tooth deformation, material removal and surface fatigue.

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Effect of rotational speed on the performance of unreinforced and glass fiber reinforced Nylon 6 spur gears

Cited by 81 publications

References 24 publications

The effect of the teeth profile shape on polymer gear pair properties

The effect of the teeth profile shape on polymer gear pair properties

Experimental Study on Dynamic and Thermal Behaviour of Chopped Glass, Sisal, and Flax Fiber-Reinforced Gears

A review on failure characteristics of polymer gear

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