Thin section flexible components pose problems during measuring, especially in case of high preci... more Thin section flexible components pose problems during measuring, especially in case of high precision components. Measuring these components require high sensitive measuring systems like CMM. It consumes more cost as well as highly skilled man power. Typical thin section titanium alloy components (diaphragms) require stringent dimensional accuracies. To measure these thin section diaphragms, a measuring setup was developed. The existing method of measurement on CMM was modeled and analysed. The results of comparative studies are presented here.
Rolling element bearings for application in Aircraft systems are to be manufactured to higher acc... more Rolling element bearings for application in Aircraft systems are to be manufactured to higher accuracy levels. Various technology details like raw material, processing stages and facilities such as machining, heat treatment, grinding, super finishing, assembly and inspection are to be considered for manufacture. However the facilities available presently in India are inadequate to produce high precision bearings. This paper deals with the prototype manufacture of bearings for some typical applications.
Bearing rings for Aircraft application are machined using high quality M50 High Speed Steel confo... more Bearing rings for Aircraft application are machined using high quality M50 High Speed Steel conforming to AMS 6491B. The raw material for the rings of Ball bearing is prepared from a single bar stock using trepanning. Special collet type soft jaw and Mandrels were devised and used on CNC Lathes to reduce manufacturing problems like ovality. Raceway forms are turned using single point copy turning insert. The problems faced during rings manufacture were discussed in this study.
This document does not claim any originality and cannot be used as a substitute for prescribed te... more This document does not claim any originality and cannot be used as a substitute for prescribed textbooks. The information presented here is merely a collection by the committee members for their respective teaching assignments. Various sources as mentioned at the end of the document as well as freely available material from internet were consulted for preparing this document. The ownership of the information lies with the respective authors or institutions. Further, this document is not intended to be used for commercial purpose and the committee members are not accountable for any issues, legal or otherwise, arising out of use of this document. The committee members make no representations or warranties with respect to the accuracy or completeness of the contents of this document and specifically disclaim any implied warranties of merchantability or fitness for a particular purpose. The committee members shall be liable for any loss of profit or any other commercial damages, including but not limited to special, incidental, consequential, or other damages.
This project was aimed at aerodynamic analysis of an aircraft encompassing the various factors in... more This project was aimed at aerodynamic analysis of an aircraft encompassing the various factors involved in flying of an aircraft such as the lift and drag forces acting on the wing and an assessment of the same. Beginning with the wing design and analysis, requirements were first identified and related concepts were formulated. A literature survey was then conducted to establish the focus for analysis. A full scale model of YAK-54 aircraft was chosen and modelled in the designing software package CATIA V5R20. All the analysis part was done in analysis software package ANSYS 13.0. The symmetrical wing section of the YAK-54 with wing profile NACA 23015 was imported in ICEM CFD where a domain was created and the structural meshing of the same was done with finer mesh at critical regions of the wing and then the meshed geometry was imported in analysis software package FLUENT. The aircraft was subjected to high supersonic speed of 450m/s and 900m/s in k-epsilon model and lift and drag forced along with other details were noted down. Velocity and pressure contour and other important parameters such as vorticity, density variations etc. were also plotted. The simulation was performed in steady state conditions. Simulation was also performed in transient state conditions to capture the shock wave at flow velocity greater than Mach 1. The results
Thin section flexible components pose problems during measuring, especially in case of high preci... more Thin section flexible components pose problems during measuring, especially in case of high precision components. Measuring these components require high sensitive measuring systems like CMM. It consumes more cost as well as highly skilled man power. Typical thin section titanium alloy components (diaphragms) require stringent dimensional accuracies. To measure these thin section diaphragms, a measuring setup was developed. The existing method of measurement on CMM was modeled and analysed. The results of comparative studies are presented here.
Rolling element bearings for application in Aircraft systems are to be manufactured to higher acc... more Rolling element bearings for application in Aircraft systems are to be manufactured to higher accuracy levels. Various technology details like raw material, processing stages and facilities such as machining, heat treatment, grinding, super finishing, assembly and inspection are to be considered for manufacture. However the facilities available presently in India are inadequate to produce high precision bearings. This paper deals with the prototype manufacture of bearings for some typical applications.
Bearing rings for Aircraft application are machined using high quality M50 High Speed Steel confo... more Bearing rings for Aircraft application are machined using high quality M50 High Speed Steel conforming to AMS 6491B. The raw material for the rings of Ball bearing is prepared from a single bar stock using trepanning. Special collet type soft jaw and Mandrels were devised and used on CNC Lathes to reduce manufacturing problems like ovality. Raceway forms are turned using single point copy turning insert. The problems faced during rings manufacture were discussed in this study.
This document does not claim any originality and cannot be used as a substitute for prescribed te... more This document does not claim any originality and cannot be used as a substitute for prescribed textbooks. The information presented here is merely a collection by the committee members for their respective teaching assignments. Various sources as mentioned at the end of the document as well as freely available material from internet were consulted for preparing this document. The ownership of the information lies with the respective authors or institutions. Further, this document is not intended to be used for commercial purpose and the committee members are not accountable for any issues, legal or otherwise, arising out of use of this document. The committee members make no representations or warranties with respect to the accuracy or completeness of the contents of this document and specifically disclaim any implied warranties of merchantability or fitness for a particular purpose. The committee members shall be liable for any loss of profit or any other commercial damages, including but not limited to special, incidental, consequential, or other damages.
This project was aimed at aerodynamic analysis of an aircraft encompassing the various factors in... more This project was aimed at aerodynamic analysis of an aircraft encompassing the various factors involved in flying of an aircraft such as the lift and drag forces acting on the wing and an assessment of the same. Beginning with the wing design and analysis, requirements were first identified and related concepts were formulated. A literature survey was then conducted to establish the focus for analysis. A full scale model of YAK-54 aircraft was chosen and modelled in the designing software package CATIA V5R20. All the analysis part was done in analysis software package ANSYS 13.0. The symmetrical wing section of the YAK-54 with wing profile NACA 23015 was imported in ICEM CFD where a domain was created and the structural meshing of the same was done with finer mesh at critical regions of the wing and then the meshed geometry was imported in analysis software package FLUENT. The aircraft was subjected to high supersonic speed of 450m/s and 900m/s in k-epsilon model and lift and drag forced along with other details were noted down. Velocity and pressure contour and other important parameters such as vorticity, density variations etc. were also plotted. The simulation was performed in steady state conditions. Simulation was also performed in transient state conditions to capture the shock wave at flow velocity greater than Mach 1. The results
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