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International Journal of Engineering and Advanced Research Technology

Volume 2 Issue 12 (December 2016)

S.No. Title & Authors Page No View
1

Title : Optimization of Chain Link of Material Handling Chain Conveyor System from FEA and Experimental Aspects

Authors : Mr Dinesh Shamrao Borse, Prof. Avinash V Patil

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Abstract :

Roller chain drives are widely used in various high-speed, high-load and power transmission applications, but their complex dynamic behaviour is not well researched. Most studies were only focused on the analysis of the vibration of chain tight span, and in these models, many factors are neglected. In this paper, a mathematical model is developed to calculate the dynamic response of a roller chain drive working at constant or variable speed condition. In the model, the complete chain transmission with two sprockets and the necessary tight and slack spans is used. The effect of the flexibility of input shaft on dynamic response of the chain system is taken into account, as well as the elastic deformation in the chain, the inertial forces, the gravity and the torque on driven shaft. The nonlinear equations of movement are derived from using Lagrange equations and solved numerically. Given the centre distance and the two initial position angles of teeth on driving and driven sprockets corresponding to the first seating roller on each side of the tight span, dynamics of any roller chain drive with two sprockets and two spans can be analysed by the procedure. Finally, a numerical example is given and the validity of the procedure developed is demonstrated by analysing the dynamic behaviour of a typical roller chain drive. The model can well simulate the transverse and longitudinal vibration of the chain spans and the torsional vibration of the sprockets. This study can provide an effective method for the analysis of the dynamic characteristics of all the chain drive systems. Chain Link assembly is extensively used in the industry, the scope of this work is to review the applications in the industry and explore the design considerations that go into the design of the assembly. The work deals into various application aspects and manufacturing aspects to formulate an idea of the system. Finally Finite Element Analysis (FEA) has been used to conduct structural analysis. Since lot of work has already been done in other components, in this work the focus has been narrowed down to specific component of link and its joint.

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2

Title : Efficient Path Planning Based On Hybrid Routing Protocols over A Vanet

Authors : S. Santhana Prabha

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Abstract :

Vehicular Ad-hoc Network (VANET) is an emerging communication Infrastructure which facilitates the connectivity among vehicles through vehicle-to- vehicle (v2v) and vehicle-to-roadside (v2R) communications and is characterized by high dynamic topology of nodes in the network. Due to this high mobility of vehicles it is quite challenging to perform packet delivery from source to destination in case of any destruction or congestion in the network. In order to overcome this problem a novel path planning technique must be implemented reducing packet loss and end to end delay which includes communication among vehicles, road side units(RSUs) and vehicle traffic servers. Hence we propose a routing protocol with GPS and map aware capabilities that includes four metrics such as distance to destination, vehicle’s density, vehicle’s trajectory and available bandwidth in order to make forwarding decisions. This protocol is being justified and it is shown that it reduces packet loss and end to end delay in the network thus increasing the efficiency of routing.

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3

Title : Bearing Capacity of Reinforced Pond Ash

Authors : Joyanta Maity, Bikash Chandra Chattopadhyay

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Abstract :

An experimental study of the bearing capacity of a square footing resting on reinforced Pond Ash was conducted in this investigation. In India, the problem of ash disposal is expected to become severe due to the limited space available for ash disposal near most of the power plants. This calls for strategies to encourage and establish technological concepts for bulk utilization of Pond Ash, which should not only be cost- effective but also environmentally safe. In this present investigation, a series of bearing capacity model test were carried out on square footing of size 10cm x 10cm resting on the reinforced Pond Ash bed which was prepared at OMC with required density. The tests were conducted without and with different no of geojute layers. The experiments were also be carried out with different densities of foundation medium, different u/B ratio, and with different size of reinforcing material sheet. From the test result it is observed that the ultimate bearing capacity of square footing on reinforced and unreinforced Pond ash bed is increases with the increase of the density of foundation bed, . Also, the bearing capacity of reinforced Pond ash bed increases with the increase of number of reinforcing layer and length of the reinforcing material sheet up to a certain limit, after that there is no improvement. Maximum improvement in ultimate beanng capacity of reinforced Pond ash bed can be achieved at u/B ratio of 0.25, with length of geojute sheet of 6B and with four number of geojute layers.

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