Natural fibers are renewable materials and have the ability to recycle. But, they are hydrophilic in nature and exhibit poor resistance to moisture.The main associated in developing new composite is adhesion property existing between fiber and matrix which can be enhanced by chemical variation which result in reducing hydrophilic nature. The powder with small particles was preferred since when the size of the particle decreases the intermolecular force adhesion increases. In this research work, matrix involving polyester resin possessing 62.07 of molecular weight (Mw) combined with rice husk (RH) to create an Hybridized Wood-Plastic Composite (HWPC). The impact of contribution of RH, wood powder by both contribution percent and its particle size are evaluated by investing its flexural, tensile and impact properties of HWPC. The investigation infers that by analyzing the percent of RH, wood powder, polyester resin matrix by weight ratio, it is inferred that the wood powder proportion increment increases the tensile property. Meanwhile, after reaching its maximum bar limit, it causes the impact and tensile property to get minimized rate. From mechanical properties analysis it results that high flexural strength can be obtained by smaller RH size utilization where it increases the interaction between RH and wood powder due to reduced voids and cavities which are obtained from the analysis of a scanning electron microscope (SEM) analysis.
Polyethylene and ferric oxide microparticles were mixed in this work to generate a new polymer composite. Weight fraction and microparticle size were studied experimentally to discover how they influenced the tensile strength and Young’s modulus. A response surface methodology was employed in the design of the research. The increased weight fraction of reinforcement results in the increase in Young’s modulus and lowers the elongation percentage. As the microparticles expanded in size, so did their effect on the composite’s mechanical characteristics. The tensile strength of specimens containing 20% ferric oxide and particle size of more than 91 µm was dropped by 18 percent due to the agglomeration of microparticles. The addition of 24% Fe2O3 microparticles smaller than 33 μm raised Young’s modulus and tensile strength by 340 percent and 65 percent, respectively.
Technology has blended itself with the everyday life of humans. People aren’t finding greater efficiency despite the field of science and technology has progressed well. Traditionally goods are moved and distributed in and around an industry manually by humans. By using an automated material handling system this problem was reduced to a certain percentage. Even though there is no efficient method to deliver the products directly to the end-user like the patients in the hospitals. So,a robotic system that transports materials all over the workplace has been designed. The serviceability of the system is based on themaster-slave concept. This system can be used in mining operations to carry materials on a rail.To make the design economical, low-cost parts are used which makes it ideal for production on an industrial scale which will aid in many applications like drug delivery systems in hospitals and also material carrying robots in mine.
The robotic manipulators are nowadays used for many applications in the industries. This project involves the design and analysis of a six DOF manipulator for welding, pick and place application. We developed a robot in Solid Works and analysed it motion, load withstanding capacity and path traceability. However, design and analysis of a robot involves modelling of it forward and inverse kinematics. We modelled the forward and inverse kinematics by D-H parameters. The proposed model makes it possible to control the manipulator to achieve any reachable position and orientation in an unstructured environment. The inverse kinematics provided many possible combinations of angles for a single end effector position. A GUI was created in MATLAB for studying the forward and inverse kinematics of the robot. It gave results with precision of 0.2 cm. the load analysis also gave the maximum load it can withstand 200 KN without permanent deformation. The approach presented in this work can also be applicable to solve the kinematics problem of other similar kinds of robot manipulators.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.