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Theoretical And Numerical Analyses Of 3d Dome-Shaped Structures Using Thin-Shell Approach, Zhong Liancheng, Peitao Liangfu 2015 South China University of TechnologySouth China University of Technology

Theoretical And Numerical Analyses Of 3d Dome-Shaped Structures Using Thin-Shell Approach, Zhong Liancheng, Peitao Liangfu

Zhong Liancheng

Dome-shaped structures have numerous applications including, but not limited to, military, astronomy, and aerospace applications. Structural health monitoring and 3D modal analyses must be performed to ensure that the structure is strong enough and capable to survive in different real-world situations and repetitive loading. In this paper, a new method is proposed for modeling of these dome-shaped structures, where the kinematics of such structures is modeled as cases of thin-shells, where the motion vectors are hypothesized to be mainly parallel to the normal vector of the shape of the structure. In such case, the complicated problem of the 3D kinematics ...


Open Prototype For Educational Nanosats Cubesat Structural Design, Benjamin Kading, Jeremy Straub, Ronald Marsh 2015 SelectedWorks

Open Prototype For Educational Nanosats Cubesat Structural Design, Benjamin Kading, Jeremy Straub, Ronald Marsh

Jeremy Straub

CubeSats are a class of small satellites that have recently gained significant interest and are being developed and used for engineering test missions, bona fide research and various other applications. A 1-U CubeSat (the original form factor) has nominal dimensions of 10 cm x 10 cm x 10 cm and a mass of no more than 1.33 kg (however, some integrators are now consistently allowing higher mass levels). Due to their small size and the demonstrated ability to successfully use consumer-grade electronics in low-Earth orbit, CubeSats cost significantly less than larger sized satellites. These reduced costs, however, are still ...


Development Of A Low-Cost Portable 3d Scanner Using Visible Light Cameras, Brendan Ydstie, Tierra Novacek, Benjamin Kading, Jeremy Straub, Scott Kerlin 2015 SelectedWorks

Development Of A Low-Cost Portable 3d Scanner Using Visible Light Cameras, Brendan Ydstie, Tierra Novacek, Benjamin Kading, Jeremy Straub, Scott Kerlin

Jeremy Straub

The medical field is beginning to use advanced manufacturing technologies such as three-dimensional (3D) scanning (where a real-world object is turned into a digital model) and printing (where a digital model is turned into a real-world object) to create customized prosthetics and other medical devices to address the specific needs of patients. This technology provides an efficient way to customize prosthetics to fit a particular person and his or her unique shape, making the prosthetics easier for the patient to use and in some cases, meeting needs that cannot be met via pre-fabricated equipment. The use of 3D scanning facilitates ...


Mechanical Design Of A Low-Cost Deployable Solar Panel Array For A 1-U Cubesat, Thomas McGuire, Skye Leake, Michael Parsons, Michael Hirsch, Benjamin Kading, Jeremy Straub, David Whalen 2015 SelectedWorks

Mechanical Design Of A Low-Cost Deployable Solar Panel Array For A 1-U Cubesat, Thomas Mcguire, Skye Leake, Michael Parsons, Michael Hirsch, Benjamin Kading, Jeremy Straub, David Whalen

Jeremy Straub

CubeSats are small spacecraft with a nominal size of 10 cm x 10 cm x 10 cm and a mass of 1.33 kg (though some launch providers are now supporting expanded mass levels). While the CubeSat form factor has reduced the time and cost of spacecraft development, the required resources are still beyond the grasp of many colleges and universities. The Open Prototype for Educational Nanosats (OPEN) concept aims to solve this problem. OPEN is an inexpensive modular CubeSat that can be produced with a parts budget of less than $5,000. The OpenOrbiter program is working to develop ...


Design And Development Of A Payload Area Sub-Structure For A 1-U Cubesat, Tristan Plante, Jordan Forbord, Alexander Holland, Landon Klein, Benjamin Kading, Jeremy Straub, Ronald Marsh 2015 SelectedWorks

Design And Development Of A Payload Area Sub-Structure For A 1-U Cubesat, Tristan Plante, Jordan Forbord, Alexander Holland, Landon Klein, Benjamin Kading, Jeremy Straub, Ronald Marsh

Jeremy Straub

Advancements in the miniaturization of electronics and other factors have allowed CubeSats, small satellites that can be created at a much lower cost than a large satellite, to perform numerous useful tasks. CubeSats, which are nominally 10 cm x 10 cm x 10 cm with a mass of less than 1.33 kg, are also developed in academic institutions to aid student learning; however, the development and launch of CubeSats can be expensive. Because of this, the Open Prototype for Educational NanoSats (OPEN) aims to make CubeSat development more affordable by developing a set of design documents as well as ...


Development Of A Metal-Printing 3d Printer At The University Of North Dakota, Benjamin Kading, Michaela Kegley, Tiana Delzer, Jeremy Straub, Scott Kerlin 2015 SelectedWorks

Development Of A Metal-Printing 3d Printer At The University Of North Dakota, Benjamin Kading, Michaela Kegley, Tiana Delzer, Jeremy Straub, Scott Kerlin

Jeremy Straub

Three-dimensional (3D) printing is being used for numerous applications: from consumer hobbies to the development of aircraft parts. However, inexpensive 3D printers have been constrained in material selection to plastic. These printer use the fused deposition modeling (FDM) method of printing, which is a relatively new technology that utilizes computer numerical control (CNC) techniques to deposit melted material at specific places. Other methods, for example, include laser sintering and stereolithography. With 3D printing, layers are stacked upon each other and via this compilation of layers, a 3D object is formed. Currently there are a variety of materials that can be ...


Burning Characteristics Of Pulverized Coal Within Blast Furnace Raceway At Various Injection Operations And Ways Of Enriched Oxygen., Wei-Hsin Chen 2015 National Cheng Kung University

Burning Characteristics Of Pulverized Coal Within Blast Furnace Raceway At Various Injection Operations And Ways Of Enriched Oxygen., Wei-Hsin Chen

Wei-Hsin Chen

No abstract provided.


Experimental Investigation On Effect Of Grinding Direction On Wear Under Heavy Load And Slow Speed Conditions With Molybdenum Disulphide (Mos2) As Additive In Commercial Lubricant, Innovative Research Publications IRP India, S. M. Muzakkir, Harish Hirani 2015 Innovative Research Publications

Experimental Investigation On Effect Of Grinding Direction On Wear Under Heavy Load And Slow Speed Conditions With Molybdenum Disulphide (Mos2) As Additive In Commercial Lubricant, Innovative Research Publications Irp India, S. M. Muzakkir, Harish Hirani

Innovative Research Publications IRP India

In the present work, experimental investigation has been carried out to identify the effect of grinding direction on the wear of the sliding surfaces subjected to heavy load and low sliding velocity with molybdenum disulphide MoS2 as additive in commercial lubricant. The conformal block and disk test setup has been used to conduct experiments on conformal blocks with two grinding directions: one along the direction of sliding and other across the direction of sliding. The wear of the block is measured as its weight loss after the test. The results of the experiments are reported.


Dimensional Synthesis Of Four Bar Mechanism Using Genetic Algorithm, Innovative Research Publications IRP India, S. S. Shete, S. A. Kulkarni 2015 Innovative Research Publications

Dimensional Synthesis Of Four Bar Mechanism Using Genetic Algorithm, Innovative Research Publications Irp India, S. S. Shete, S. A. Kulkarni

Innovative Research Publications IRP India

The dimensional synthesis is done by using Genetic Algorithm to achieve a desired trajectory. Three problems are analyzed having different curvature. The program is authored in MATLAB® 2010a. The error is seen to be in the permissible prescribed limit. The prototyping of straight line trajectory analysis is also done in ADAMS®


Influence Of Environmental Dust On The Operating Characteristics Of The Solar Pv Module In Tripura, India, Innovative Research Publications IRP India, T. Bhattacharya, A. K. Chakraborty, K. Pal 2015 Innovative Research Publications

Influence Of Environmental Dust On The Operating Characteristics Of The Solar Pv Module In Tripura, India, Innovative Research Publications Irp India, T. Bhattacharya, A. K. Chakraborty, K. Pal

Innovative Research Publications IRP India

The production of PV power depends on different meteorological parameters. Accumulation of dust is one of the factor which reduces the output power. The recent study was done in Tripura, India and there is maximum of 13% and minimum of 9% reduction in efficiency has been observed during the period of experiment


Maintenance Free Bearings, Innovative Research Publications IRP India, S. M. Muzakkir, Harish Hirani 2015 Innovative Research Publications

Maintenance Free Bearings, Innovative Research Publications Irp India, S. M. Muzakkir, Harish Hirani

Innovative Research Publications IRP India

In the present research work the need of a Maintenance Free Bearings (MFB) is established. The paper presents preliminary friction calculations to highlight the ways to achieve maintenance free bearings. The existing technologies of well established maintenance free bearings are described. The hybridization of bearing technologies to achieve low cost maintenance free bearings has been exemplified. Finally a combination of passive magnetic repulsion and hydrodynamics has been proposed and recommended as source terms to develop maintenance free bearings.


Statistical Analysis Of The Performance Of Solar Photovoltaic Module With The Influence Of Different Meteorological Parameters In Tripura, India., Innovative Research Publications IRP India, T. Bhattacharya, A. K. Chakraborty, K. Pal 2015 Innovative Research Publications

Statistical Analysis Of The Performance Of Solar Photovoltaic Module With The Influence Of Different Meteorological Parameters In Tripura, India., Innovative Research Publications Irp India, T. Bhattacharya, A. K. Chakraborty, K. Pal

Innovative Research Publications IRP India

An equation has been developed to measure the efficiency of PV module instantly, if the climatic parameters of the area are known. The measured and calculated values of efficiency are verified to check the percentage error between them. It is observed that developed equation has very correlation with the measured values.


Performance Evaluation Of Natural Ventilation Devices To Improve Thermal Comfort Of A Computer Lab Of University Building Using Cfd As A Tool, Innovative Research Publications IRP India, Dipesh Kumar, Abhishek Jatav 2015 Innovative Research Publications

Performance Evaluation Of Natural Ventilation Devices To Improve Thermal Comfort Of A Computer Lab Of University Building Using Cfd As A Tool, Innovative Research Publications Irp India, Dipesh Kumar, Abhishek Jatav

Innovative Research Publications IRP India

Air circulation study is most important part for any building; so that engineers can optimize thermal comfort for buildings. A computer lab located in university building of Jaipur city is used in this study. Main aim of this study is to optimize computer lab for two types of conditions, first is only internal fans are in operational condition and second condition is effect of room window opening and closing. Thermal comfort parameters are used for analysis. Model equations are also generated in this steady using advanced D.O.E. (design of experiment) technique. Computational fluid dynamic (CFD) studies were carried ...


The Design Of Earth Air Tunnel Heat Exchanger System For An Institute Library, Innovative Research Publications IRP India, Sunil Kumar Khandelwal, Anuj Mathur, G. D. Agrawal 2015 Innovative Research Publications

The Design Of Earth Air Tunnel Heat Exchanger System For An Institute Library, Innovative Research Publications Irp India, Sunil Kumar Khandelwal, Anuj Mathur, G. D. Agrawal

Innovative Research Publications IRP India

-In this paper a simple Excel based mathematical model has been developed in order to design the EATHE system for the ground floor of library of the Malaviya National Institute of Technology Jaipur for meeting a given cooling/heating load. This model helps in determining characteristic dimensions, air flow rate, number of pipes, selection of blower and economic investments in an EATHE system. A thermal comfort survey was also conducted to find the thermal comfort temperature inside the library of MNIT, which is approx 28.6 0C, quiet near to the temperature obtained through this EATHE system.


Effect Of Molybdenum Disulfide Particle Sizes On Wear Performance Of Commercial Lubricant, Innovative Research Publications IRP India, S. M. Muzakkir, Harish Hirani 2015 Innovative Research Publications

Effect Of Molybdenum Disulfide Particle Sizes On Wear Performance Of Commercial Lubricant, Innovative Research Publications Irp India, S. M. Muzakkir, Harish Hirani

Innovative Research Publications IRP India

Experimental investigations have been conducted for determination of effectiveness of employing a combination of three particle sizes (40 nm size, 1.75 μm size and 53 μm size) of Molybdenum Disulphide as anti-wear additive in a commercial lubricant. The conformal block and disk configuration has been used to conduct experiments for determination of wear of the sliding surfaces. The performance of the proposed combined particle sizes anti-wear additive is compared with single particle size anti-wear additives to establish its robustness under varying surface conditions.


Design Of Innovative Engine Valve: Background And Need, Innovative Research Publications IRP India, S. M. Muzakkir, M. G. Patil, Harish Hirani 2015 Innovative Research Publications

Design Of Innovative Engine Valve: Background And Need, Innovative Research Publications Irp India, S. M. Muzakkir, M. G. Patil, Harish Hirani

Innovative Research Publications IRP India

This is part one of the paper on conceptual design of an engine valve. This paper describes the background and the need of an engine valve for an internal combustion engine. The present state of the engine valve technology and the innovations incorporated in its design has been described. The paper presents the conceptualization of an innovative valve train aiming at lesser number of components, reduction in friction and wear, proper sealing, and trimming down pumping losses. The need of these objectives have been identified and established. The next part of this paper describes the various geometric designs of valve ...


Design Of Innovative Engine Valve, Innovative Research Publications IRP India, S. M. Muzakkir, M. G. Patil, Harish Hirani 2015 Innovative Research Publications

Design Of Innovative Engine Valve, Innovative Research Publications Irp India, S. M. Muzakkir, M. G. Patil, Harish Hirani

Innovative Research Publications IRP India

This is part two of the paper on conceptual design of an engine valve. The previous paper describes the background and the need of an engine valve for an internal combustion engine. The present state of the engine valve technology and the innovations incorporated in its design has been described. This paper presents the conceptualization of an innovative valve train aiming at lesser number of components, reduction in friction and wear, proper sealing, and trimming down pumping losses. Various geometric designs of valve trains have been detailed and compared. Finally a convolution based poppet valve mechanism, which is free from ...


Research On Optimization Of Plunge Centerless Grinding Process Using Genetic Algorithm And Response Surface Method, Innovative Research Publications IRP India, Phan Bui Khoi, Do Duc Trung, Ngo Cuong, Nguyen Dinh Man 2015 Innovative Research Publications

Research On Optimization Of Plunge Centerless Grinding Process Using Genetic Algorithm And Response Surface Method, Innovative Research Publications Irp India, Phan Bui Khoi, Do Duc Trung, Ngo Cuong, Nguyen Dinh Man

Innovative Research Publications IRP India

This paper presents the research on optimization of plunge centerless grinding process when grind 20X – carbon infiltration steel (ГOCT standard - Russia) to achieve minimum of roundness error value. The input parameters are center height angle of the workpiece (  ), longitudinal grinding wheel dressing feed-rate ( Ssd ), plunge feed-rate ( k S ) and control wheel velocity ( dd v ). Using the result of 29 runs in Central Composite Design matrix to given the second order roundness error model. Genetic algorithm and Response surface method were used to focus on determination of optimum centerless grinding above parameters for minimization of roundness error for each methods.


Design And Analysis Of Leaf Spring - Using Fea Approach, Innovative Research Publications IRP India, Hareesh K, Thillikkani S 2015 Innovative Research Publications

Design And Analysis Of Leaf Spring - Using Fea Approach, Innovative Research Publications Irp India, Hareesh K, Thillikkani S

Innovative Research Publications IRP India

The aim of this paper is to represent a general study the design and analysis of leaf spring. The suspension system in a vehicle significantly affects the behavior of vehicle. Leaf springs are subjected to millions of varying stress cycles loading to fatigue failure. Leaf springs are special kind of springs used in automobile suspension systems. The main function of leaf spring is not only to support vertical load but also to isolate road induced vibrations. The present work attempts to linear Static analysis determines the safe stress and corresponding pay load of the leaf spring and analyze the safe ...


Fracturing And Deformation Characteristics Of Aluminium Preform During Cold Forging At Low Strain Rates, Innovative Research Publications IRP India, Shrikant Jain, R. K. Ranjan, Surender Kumar 2015 Innovative Research Publications

Fracturing And Deformation Characteristics Of Aluminium Preform During Cold Forging At Low Strain Rates, Innovative Research Publications Irp India, Shrikant Jain, R. K. Ranjan, Surender Kumar

Innovative Research Publications IRP India

The industrial processing of sintered powder preform has been developed for manufacturing various engineering components. The present investigation has been undertaken to analyze the deformation characteristics during the cold forging of sintered aluminium preform at low strain rates. Experiments have been conducted and measurements made on deformation during cold forging on aluminium preforms with lubricated end conditions. Experimentally obtained flow load and plastic work done are in good agreement with theoretical estimates


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