Volume-1, Issue-3, December-2014
1. Local Feature based Descriptors and their Applications
This paper presents a study on SIFT (Scale Invariant Feature transform) which is a method for extracting distinctive invariant features from images that can be used to perform reliable matching between different views of an object or scene. The features are invariant to image scaling, translation, and rotation, and partially invariant to illumination changes and affine or 3D projection and SURF (Speeded-up Robust features) which is speeded up the SIFT’s detection process without scarifying the quality of the detected points. SURF approximates or even outperforms previously proposed schemes with respect to repeatability, distinctiveness, and robustness, yet can be computed and compared much faster.
Published by: Ridhi Jindal, Ankit Singla, Manish Mittal
Research Area: Digital Image Processing
2. Analysis of Connecting Rod using Ti-6AI-4V, Steel and Ai-LM6 Composites
Now a day the light weight composite materials are widely used in engineering field. The composite materials has good characteristic of wear resistance, hardness and tensile strength. Due to less weight and good strength the composite materials plays a vital role in engineering field. Connecting rods can be made of composite material. The automobile engine connecting rod is a high volume production, critical component. It connects reciprocating piston to rotating crankshaft, transmitting the thrust of the piston to the crankshaft. Every vehicle that uses an internal combustion engine requires at least one connecting rod. It is subjected to multiple compressive & tensile forces generated by fuel combustion. The high magnitude of force is responsible for many kinds of failure. These failures need to be prevented & for this purpose analysis needed to be done. This study considers the case of static load stress analysis of the connecting rod. The model was developed in CATIA V5 R17 software, and then imported to ANSYS workbench. Using ANSYS workbench, model was analyzed for various stresses by applying suitable boundary conditions. Various parameters like equivalent stress, maximum shear stress, maximum and minimum principal stress and factor of safety are analyzed. Three materials were analyzed based upon their factor of safety viz., Structural Steel & Al-LM6 and Ti-6Al-4V. Ti-6Al-4V being light in weight having more yield strength and good safety factor became the best suitable material.
Published by: Sahil Guleria
Research Area: Mechanical Engineering