The main objective of this paper is to compare result obtain from analytical calculation and mode... more The main objective of this paper is to compare result obtain from analytical calculation and modeling software for critical section thickness and tip thickness of asymmetric spur involute gear tooth. Equations are developed for analytical calculation for critical section thickness & tip thickness of asymmetric spur involute gear tooth and estimate the critical section thickness and tip thickness. And validate the result with help of graph by comparing analytical calculation and modeling software for critical section thickness and tip thickness of asymmetric spur involute gear tooth.
Due to the increasing demand for fossil fuels and environmental threat, a number of renewable sou... more Due to the increasing demand for fossil fuels and environmental threat, a number of renewable sources of energy have been studied worldwide. An attempt is made to assess the suitability of vegetable oil for diesel engine operation, without any modifications in its existing construction. One of the important factors which influence the performance and emission of diesel engine is fuel injection pressure. The main objective of this study is to investigate the effect of Karanja Biodiesel blended with diesel and investigating performance and emissions characteristics of the engine. By changing the various parameters like Load, Blending Ratio, various performance and emission characteristics will be measured. Non edible Karanja (Pongamia Pinata) biodiesel blended with diesel were tested for their use as substitute fuels for diesel engines. One of the major objectives of the present study was to experimentally access the practical applications of diesel & karanja biodiesel blend in single...
This research describes simple and innovative approach to reduce bending stress at tooth root of ... more This research describes simple and innovative approach to reduce bending stress at tooth root of asymmetric spur gear tooth which is desire for improve high load carrying capacity. In gear design at root of tooth circular-filleted is widely used. Blending of the involute profile of tooth and circular fillet creates discontinuity at root of tooth causes stress concentration occurs. In order to minimize stress concentration, geometric continuity of order 2 at the blending of gear tooth plays very important role. Bezier curve is used with geometric continuity of order 2 at tooth root of asymmetric spur gear to reduce bending stress.
ABSTRACT The main objective of this paper is to show that various constraints affect the optimiza... more ABSTRACT The main objective of this paper is to show that various constraints affect the optimization of bending stress. In this paper various constraints are discussed. For specific gear tooth parameter analytical calculation are done and give recommendation as per IS standards.
ABSTRACT This paper describe a novel innovation stretcher cum wheel chair for patients. Various m... more ABSTRACT This paper describe a novel innovation stretcher cum wheel chair for patients. Various mobility aids are useful for patient to transfer from one place to other place at hospital and other place. During the medical treatment Doctors are recommended patient for mobility in wheel chair. But, it is very difficult to transfer patient from bed to chair and vice versa. This innovation is specially design for patient to transfer from bed to wheel chair and vice versa. This innovation help attainder or nurse to transfer patient from bed to chair very easily, because chair become a stretcher and it is adjustable to height of a bed.
The main objective of this review paper is to show how the different parameters are affecting the... more The main objective of this review paper is to show how the different parameters are affecting the bending stress at critical section of asymmetric spur gear. Bending stress at critical section is most important parameter in gear design. It must be low as low possible. Our try to minimize it by optimize all affected Parameters of asymmetric spur gear tooth to reduce Bending Stress at critical section of tooth. This reduction can translate into Increased Load Capacity, Size and Weight Reduction, Longer Life, Cost Reduction, Increased Reliability, Noise and Vibration reduction, Increased Gear Efficiency and Maintenance Cost Reduction etc. As the pressure angle on drive side increases, the bending stress reduces at critical section of asymmetric spur gear. But Decision on maximum magnitude of drive side pressure angle is constraint by the safe contact ratio and tooth peaking effect. These way parameters are affecting directly or indirectly on performance. There are so many parameters ar...
The main objective of this paper is to show effect o f pressure angle on contact ratio of asymmet... more The main objective of this paper is to show effect o f pressure angle on contact ratio of asymmetric spur gear teeth. Analytic calculation has been done with illustration and conclusion made on it. A programme has been developed in SciLab software to obtain contact ratio of Asymmetric Spur Gear tooth. Step by step producer has been describing to obtain contact ratio of Asymmetric Spur Gear tooth.
The main objective of this paper is to show effect of pressure angle on contact ratio of asymmetr... more The main objective of this paper is to show effect of pressure angle on contact ratio of asymmetric spur gear teeth. Analytic calculation has been done with illustration and conclusion made on it. A programme has been developed in SciLab software to obtain contact ratio of Asymmetric Spur Gear tooth. Step by step producer has been describing to obtain contact ratio of Asymmetric Spur Gear tooth.
The main objective of this research paper is to show that as increases the pressure angle on driv... more The main objective of this research paper is to show that as increases the pressure angle on drive side profile of asymmetric spur gear tip becomes more sharp which is not desirable, so it is a limitation in pressure angle on drive side profile. so, increases pressure angel on drive side profile of an asymmetric spur gear in such a way that it satisfies criteria of a tip thickness at addendum circle of the gear has to be a satisfy a safe or limit value. From the analysis it was found that the bending stress at the critical section reduces drastically with increases in the pressure angle on the drive side for certain limit.From the analysis it was found that after the modification, bending stress decreases from 41.73 MPa to 22.66 MPa. The above improvement in the bandings stress could be implemented by the followings ways: [1]The axial thickness of a spur gear tooth decrease in such a way that it satisfy limit of bending stress not more than 41.73 MPa. [2]It improves the load carryin...
The main objective of this paper is to compare result obtain from analytical calculation and mode... more The main objective of this paper is to compare result obtain from analytical calculation and modeling software for critical section thickness and tip thickness of asymmetric spur involute gear tooth. Equations are developed for analytical calculation for critical section thickness & tip thickness of asymmetric spur involute gear tooth and estimate the critical section thickness and tip thickness. And validate the result with help of graph by comparing analytical calculation and modeling software for critical section thickness and tip thickness of asymmetric spur involute gear tooth.
Due to the increasing demand for fossil fuels and environmental threat, a number of renewable sou... more Due to the increasing demand for fossil fuels and environmental threat, a number of renewable sources of energy have been studied worldwide. An attempt is made to assess the suitability of vegetable oil for diesel engine operation, without any modifications in its existing construction. One of the important factors which influence the performance and emission of diesel engine is fuel injection pressure. The main objective of this study is to investigate the effect of Karanja Biodiesel blended with diesel and investigating performance and emissions characteristics of the engine. By changing the various parameters like Load, Blending Ratio, various performance and emission characteristics will be measured. Non edible Karanja (Pongamia Pinata) biodiesel blended with diesel were tested for their use as substitute fuels for diesel engines. One of the major objectives of the present study was to experimentally access the practical applications of diesel & karanja biodiesel blend in single...
This research describes simple and innovative approach to reduce bending stress at tooth root of ... more This research describes simple and innovative approach to reduce bending stress at tooth root of asymmetric spur gear tooth which is desire for improve high load carrying capacity. In gear design at root of tooth circular-filleted is widely used. Blending of the involute profile of tooth and circular fillet creates discontinuity at root of tooth causes stress concentration occurs. In order to minimize stress concentration, geometric continuity of order 2 at the blending of gear tooth plays very important role. Bezier curve is used with geometric continuity of order 2 at tooth root of asymmetric spur gear to reduce bending stress.
ABSTRACT The main objective of this paper is to show that various constraints affect the optimiza... more ABSTRACT The main objective of this paper is to show that various constraints affect the optimization of bending stress. In this paper various constraints are discussed. For specific gear tooth parameter analytical calculation are done and give recommendation as per IS standards.
ABSTRACT This paper describe a novel innovation stretcher cum wheel chair for patients. Various m... more ABSTRACT This paper describe a novel innovation stretcher cum wheel chair for patients. Various mobility aids are useful for patient to transfer from one place to other place at hospital and other place. During the medical treatment Doctors are recommended patient for mobility in wheel chair. But, it is very difficult to transfer patient from bed to chair and vice versa. This innovation is specially design for patient to transfer from bed to wheel chair and vice versa. This innovation help attainder or nurse to transfer patient from bed to chair very easily, because chair become a stretcher and it is adjustable to height of a bed.
The main objective of this review paper is to show how the different parameters are affecting the... more The main objective of this review paper is to show how the different parameters are affecting the bending stress at critical section of asymmetric spur gear. Bending stress at critical section is most important parameter in gear design. It must be low as low possible. Our try to minimize it by optimize all affected Parameters of asymmetric spur gear tooth to reduce Bending Stress at critical section of tooth. This reduction can translate into Increased Load Capacity, Size and Weight Reduction, Longer Life, Cost Reduction, Increased Reliability, Noise and Vibration reduction, Increased Gear Efficiency and Maintenance Cost Reduction etc. As the pressure angle on drive side increases, the bending stress reduces at critical section of asymmetric spur gear. But Decision on maximum magnitude of drive side pressure angle is constraint by the safe contact ratio and tooth peaking effect. These way parameters are affecting directly or indirectly on performance. There are so many parameters ar...
The main objective of this paper is to show effect o f pressure angle on contact ratio of asymmet... more The main objective of this paper is to show effect o f pressure angle on contact ratio of asymmetric spur gear teeth. Analytic calculation has been done with illustration and conclusion made on it. A programme has been developed in SciLab software to obtain contact ratio of Asymmetric Spur Gear tooth. Step by step producer has been describing to obtain contact ratio of Asymmetric Spur Gear tooth.
The main objective of this paper is to show effect of pressure angle on contact ratio of asymmetr... more The main objective of this paper is to show effect of pressure angle on contact ratio of asymmetric spur gear teeth. Analytic calculation has been done with illustration and conclusion made on it. A programme has been developed in SciLab software to obtain contact ratio of Asymmetric Spur Gear tooth. Step by step producer has been describing to obtain contact ratio of Asymmetric Spur Gear tooth.
The main objective of this research paper is to show that as increases the pressure angle on driv... more The main objective of this research paper is to show that as increases the pressure angle on drive side profile of asymmetric spur gear tip becomes more sharp which is not desirable, so it is a limitation in pressure angle on drive side profile. so, increases pressure angel on drive side profile of an asymmetric spur gear in such a way that it satisfies criteria of a tip thickness at addendum circle of the gear has to be a satisfy a safe or limit value. From the analysis it was found that the bending stress at the critical section reduces drastically with increases in the pressure angle on the drive side for certain limit.From the analysis it was found that after the modification, bending stress decreases from 41.73 MPa to 22.66 MPa. The above improvement in the bandings stress could be implemented by the followings ways: [1]The axial thickness of a spur gear tooth decrease in such a way that it satisfy limit of bending stress not more than 41.73 MPa. [2]It improves the load carryin...
Gear design is a very complex procedure. The manual design calculation required lots of time. Goo... more Gear design is a very complex procedure. The manual design calculation required lots of time. Good gear design required FEA analysis to predict gear failure and a CAD model is required for FEA. The manual method is very complicated to develop a CAD model of the gear. Modeling software’s are available to develop CAD model, but for symmetric gear only. So, for modelling of asymmetric gear, the researcher will tend to use the manual method. A CAD model must be edited is the main desire of researchers at root profile. Available modeling software restricts user interference. This book explores a Smart output-based parametric gear modelling system that will reduce lots of time to design and create a CAD model. This system can be finalized gear parameter, material, and edited root profile as per the current research. The whole system is divided into two Program and the Modelling module. The program module will help to finalize the parameters and material. It also generates a set of points. The modeling module generates a CAD model using points that are generated with the help of a finalized parameter. The system allows a user to use an optimized root profile as per current research.
Gear design is a very complicated process. The manual method of gear design processes requires lo... more Gear design is a very complicated process. The manual method of gear design processes requires lots of time to design the optimized gear. After a design of the gear, the next task is the manufacturing of gear. Current researches are focus on tooth and root profile to improve performance but the convectional manufacturing technique unable to obtain the desire root profile as per design. To achieve the desired parameter for better performance it is necessary to use CNC for manufacturing a gear. The G code is very essential for manufacturing using a CNC machine. Currently, the industry uses CAD models and G code generation software to develop G code. It shows that lots of time, CAD software, G code generation software, operator, and design professionals are required to generate G code. Direct Gear Manufacturing system presents an innovative approach to develop a G code for symmetric and asymmetric involute spur gear without using CAD model and G code generation software. The system helps to select gear design parameters and material which is essential for good gear design and eliminates manual design calculation. Direct Gear Manufacturing saved lots of time to manufacture gear.
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Papers by Dr. Priyakant A Vaghela