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Authors:Alpana Chaudhary, Ayushi Pandey Pages: 27 - 32 Abstract: The employment of different nanomaterial as constituents in the design & construction of aircraft & space craft is discussed. This papers deals with the characteristics features of the nanomaterial over the other macro & micro elements. The potential of nanomaterial is enhanced in the aerospace engineering & space science field with their evolving features. This study focused on different utilization of nanomaterial in the air craft or space craft layout. The major obstacles faced by the spacecraft in the space are due to eccentric climatic condition is resolved by the introduction of nanomaterial. The major nanomaterial based on characteristics features used for different purpose is classified. Advanced nanomaterial such as nonporous membranes, self-healing nanomaterial, high strength Nano composites, and adaptive and actuating nanostructures can provide revolutionary solutions. There are still many other ways nanotechnology could help space travel while major are discussed in this article. In lightweight aircraft constructions, fatigue damage, and corrosion resistance, advanced composites were employed. The unique characteristics (mechanical, electrical, thermal, and magnetic, etc.) of Nano scale materials that change suddenly with changes in their size (1- 100nm). The history, employability in different sectors of nanomaterial is discussing in this article. PubDate: 2022-02-21 Issue No:Vol. 11, No. 3 (2022)
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Authors:Ankit Rana, Sandeep Choudhary Pages: 33 - 38 Abstract: In this article new advances technology is being introduced in the field of aerospace Engineering such as Unmanned air Vehicles (UAVs). Their basic idea of working principle is discussed with multiple uses in many industries for different purpose. A descriptive review is provided on the working, concept and future aspects of this advance technology. The different significance is discussed in multiple industries. The Article is providing a concept for better development & advancements for UAVs. Data of usage by different domain is collected and represented in percentage through few last years. UAVs can be a key feature in the advancements of multiple developing fields. PubDate: 2022-04-18 Issue No:Vol. 11, No. 3 (2022)
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Authors:Sumit Kumar Pages: 39 - 47 Abstract: In modern industry demands of titanium alloy is increasing day by day. Because it has many several characteristics such as low thermal conductivity, low elastic modulus. Application of Titanium and its alloys now a day in different field such as aerospace industry sports car etc. Therefore, it is replacing different metal such as aluminium in many applications. It has high corrosion resistance and high strength – to – weight ratio so these material are also called super alloy. By using conventional machining process titanium and its alloy are very difficult to machining. So Non–conventional machining process such as EDM is used to machine these type of hard material such as titanium alloy. Because EDM can provide better surface finish rate and machine complicated geometry and profile. So producing complex cavities in die EDM has been widely preferred. There are no mechanical vibrations and chatter produced in machining procedure. PubDate: 2022-04-16 Issue No:Vol. 11, No. 3 (2022)
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Authors:Prantik Mukhopadhyay Pages: 1 - 13 Abstract: Heat-treatable and nonheat-treatable aluminium alloys are fabricated in industries for an efficient and precise wide range of vehicles. Particles are deliberated to form at grain boundaries, during wrought alloys fabrication and heat treatment by compositional design, to improve mechanical properties and to render greater performance in the frontiers of technology. An efficient simulator to quantify the trend of contributed work hardening from non-deformable and deformable particles of Aluminium alloys formulated to address industrial fabrication of new aluminium alloys, deliberated by compositional design. An extensive and versatile simulator, which is liable to trace the effect of particle frequency, volume fraction of particles and radius of particles on flow stress, is required for new aluminium alloy design. An efficacy in reliable trend of results, found for work hardening from non-deformable and deformable particles, where an extra extent of contributed work hardening was quantified from geometrically necessary dislocations, is inevitable to increase its confidence. PubDate: 2021-12-30 Issue No:Vol. 11, No. 3 (2021)
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Authors:Michael Shoikhedbrod Pages: 14 - 26 Abstract: The previously conducted theoretical description of the mechanism of formation of negatively charged electrolysis hydrogen bubbles and control of their size under terrestrial conditions, confirmed experimentally, permitted to conclude that negatively charged electrolysis hydrogen bubbles, floating up in a fluid, meet on their way the solid particle with dimensions much larger than the size of bubbles and induce a positive charge on the surface of the solid particle. As a result of the actions of the arising electrostatic force of attraction and the force of surface tension, a complex is formed: a solid particle, hung with negatively charged hydrogen bubbles, with a significantly increased lifting volume. The main tool of separation of solid particles from a fluid, the force of Archimedes, due to the increased lifting volumes of the formed complexes, raises the complexes to the surface of the fluid, separating solid particles from the fluid. The conducted studies permit to use these uniquely properties of electrolyzed hydrogen bubbles for cleaning of industrial waste waters and sewage, clarification of juices and vines, juice and unicellular alga concentrates production. Separation of solid inclusions from fluid under microgravity conditions plays a decisive role in the purification of fuel and special fluids from solid inclusions in the life support and power supply system of the International Space Station.However, it is impossible to take advantage of the results of previously conducted theoretical and experimental studies due to the lack, in this case, of the force of Archimedes. The paper presents a theoretical description of the mechanism of the formation of negatively charged bubbles of electrolysis hydrogen and control of their size under microgravity conditions, confirmed experimentally, which permitted to conclude that negatively charged electrolysis hydrogen bubbles, moving horizontally in the fluid from the cathode, where they were formed, to the anode due to the resulting electrostatic force of attraction between the bubbles and the anode, meet on their way a solid particle with dimensions much larger than the size of the bubbles, and induce a positive charge on the surface of the solid particle. As a result of the action of the arising electrostatic force of attraction and the force of surface tension, a negatively charged complex is formed: a solid particle hung with negatively charged hydrogen bubbles, which create a negative shield of the complex, which permits the complex to move towards to the positively charged anode. The main tool for separation of solid particles from fluid, in this case, is the conical shape of the separator, which drains all the liquid: purified in the near-cathode zone and concentrated by solid particles in the near-anode zone, into different ampoules. The conducted studies permit to construct a special concentrator-separator, capable to work on the International Space Station. PubDate: 2021-11-01 Issue No:Vol. 11, No. 3 (2021)
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