Static and Dynamic Analysis of Spur and Bevel Gear

Gear is the one of the important machine element in the mechanical power transmission system. Spur gear is most basic gear used to transmit power between parallel shafts. Spur gear generally fails by bending failure or contact failure. This paper analyses the bending stresses characteristics of an involute spur gear tooth under static loading conditions. The tooth profile is generated using CATIA and the analysis is carried out by Finite element method using ANSYS software. The stresses at the tooth root are evaluated analytically using existing theoretical models. The theoretical and FEM results are compared. The results obtained theoretically are in good agreement with those obtained from software. Also an attempt is made to introduce Stress and displacement characteristics of tooth under dynamic loading conditions

Wild edible plants of Chandrapur district, Maharashtra, India

110-117Chandrapur district is blessed with nature having about 3810 sq. km. forest cover, which accounted for 35.75% of the total geographical area of the district. The population of the district mainly comprises of tribal, rural and people from other states such as Andhra Pradesh, Madhya Pradesh, Orissa and <span style="font-size:10.0pt;mso-bidi-font-family:Mangal;font-style:normal; mso-bidi-font-style:italic" lang="EN-GB">Chhattisgarh<i style="mso-bidi-font-style: normal">, which made diverse food habits in the district. Present work deals with the study of different wild edible plant species used by tribal and rural people from Chandrapur district of Maharashtra state. It reveals information about various edible parts of 61 plant species (dicot & monocot) which includes corms, tubers, leaves, flowers, fruits and seeds. Collection and utilization of wild edible plants provide seasonal food security and become source of income to the local people. </span

Traditional Equipments Of Madia Gond Of Devda Village, Gadchiroli District (Maharashtra), India.

<p>The tribal are known to have rich knowledge of indigenous technology<br>pertaining to equipments preparation and this paper comprises the findings of<br>traditional knowledge regarding different equipments used by Madia Gond people of<br>Devda village. They use different plants to prepare fishing and bird holding equipments<br>and stones to prepare crushing and grinding equipments.</p> <p> </p