8 publications
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Evaluation of Short-Term Fatigue Characteristics and Measurements of Modulus Reinforcement of Cement-Polypropylene Composite MaterialBy Dibakar Bandopadhya
Abstract: The choice of filler materials along with the derived composition of constituents plays an important role in determining the performance effectiveness of polymeric composite material. This work is an annexure of vivid experimental study succeeding with the evaluation of fatigue characteristics together with the determination of reinforcement and modulus-of-elasticity of cement reinforced polymeric composite material. Inexpensive fly-ash based Portland pozzolana cement is used as filler material with the polypropylene as …
Published in Journal of Mechatronics and Automation · Vol. 4, Issue 1, 2017 · pp. 31–41 Read article →
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Synthesis of Coupler Curve on Optimizing a Four-Bar Mechanism with Ternary Linkage Using Genetic AlgorithmBy Dibakar Bandopadhya, R. Tummala, M. Giridhar
Abstract: AbstractDesigning of an intricate shaped coupler curve requires assembling of complex synthesis process in relationship with the linkages of a mechanism. This work is an attempt to address curvilinear path synthesis problem on designing and optimizing a four-bar mechanism with ternary linkage whose coupler tip traces an in-demand curve with enhanced fitness level. Coupler-curve equations of the mechanism have been derived in relationship with the linkages; in the follow-up, a …
Published in Journal of Advancements in Robotics · Vol. 3, Issue 3, 2016 · pp. 9–22 Read article →
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Development of Metal-Skin Sandwich Panel of Cement Reinforced Polypropylene Composite as Hub MaterialBy Dibakar Bandopadhya, J. Sardar
Abstract: Cement reinforced polypropylene based composite material has shown significant potential for industrial applications recently. This work is in line with the material design and fabrication of metal-skinned sandwich panels; an application of the cement filled polypropylene composite material. Different compositions of cement filled composite materials are selected and few metal-skinned sandwich panels are fabricated where aluminum (Al) and galvanized iron (GI) sheets are used as skin materials. Several experiments are …
Published in Trends in Machine design · Vol. 3, Issue 1, 2016 · pp. 30–50 Read article →
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Dynamic Performance Analysis of Non-metallic Spur Gear subjected to Variable Loads and SpeedsBy Dibakar Bandopadhya, Jagannath Sardar
Abstract: The thrust for design and development of nonmetallic gear results in fabrication of inexpensive cement reinforced polypropylene based composite material spur gear. In this work, several experiments are conducted under variable loads and speeds and subsequently the resulting effect of heat emission on the performance of the gear is analyzed. A laboratory made gear test-rig is modified and suitably retrofitted; while pure polypropylene and 10 wt% cement reinforced spur gears …
Published in Trends in Machine design · Vol. 2, Issue 3, 2015 · pp. 1–19 Read article →
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Investigation and Evaluation of Wear Characteristics of A Nonmetallic Spur GearBy Dibakar Bandopadhya, Jagannath Sardar
Abstract: A thermoplastic composite material designed and developed for fabrication of nonmetallic composite spur gear. The composite is fabricated using Portland Pozzolanic Cement (PPC) as filler material into the polypropylene matrix followed by injection molding technique. However, geometrical structure of the developed product depends on the parameter like loading-unloading condition and temperature fluctuation that severely influence the material performance and shorten the product life. In the present work, the composite spur …
Published in Trends in Machine design · Vol. 1, Issue 3, 2014 · pp. 73–78 Read article →
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A Stress Distribution Model along the Tooth Mating Surface of a Non-Metallic Spur Gear using the Hertz'sBy Jagannath Sardar, Dibakar Bandopadhya
Abstract: A low cost cement reinforced polymeric composite material is designed and developed for fabrication of non-metallic automotive components such as gear. 10 wt% cement fillers are mixed up with pure polypropylene and injection-molding process is followed to fabricate the composite gear. Several experiments have been conducted to study the composite gear failure mechanism and resulting stress distribution along the tooth contact surface. For this, experimental data are used and Hertzian …
Published in Trends in Machine design · Vol. 1, Issue 3, 2014 · pp. 50–58 Read article →
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Development of an Active Catheter Mechanism using IPMC for in vivo InspectionBy Dillip Kumar Biswal, Dibakar Bandopadhya, Santosha Kumar Dwivedy
Abstract: An active catheter mechanism designed and developed for body parts (interiors, oral) inspection using active polymeric actuator i.e. ionic polymer metal composite (IPMC). The first step is achieved by fabricating the low cost silver (Ag) electrode IPMC following the chemical decomposition method. When a voltage is applied, the catheter yields a transverse movement; at the same time can exhibit forward and backward motion enables it to inspect wide range of …
Published in Journal of Mechatronics and Automation · Vol. 1, Issue 1, 2014 · pp. 60–69 Read article →
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Design and Development of an Under-actuated Mechanism for Grasping and Grabbing of ObjectsBy R. Jain, V. Chouhan, Dibakar Bandopadhya
Abstract: Abstract: An under-actuated mechanism is designed and developed for robotic hand application suitable for handling both regular and irregular shaped objects. The hand consists of three fingers and use two actuators to control 6 degree-of-freedoms (DOFs) and proves to be versatile for material handling in small to large scale application. A rotary actuator is used and grasping of object is done by actuating three fingers on a sliding base. In …
Published in Journal of Mechatronics and Automation · Vol. 1, Issue 2, 2014 · pp. 67–76 Read article →