ANALYSIS OF A THIN AND THICK WALLED PRESSURE VESSEL FOR DIFFERENT MATERIALS IAEME Publication
In the present work the problem of calculation of the stress developed in the thin and thick cylindrical pressure vessels is numerically solved by using software in C++. The analysis has been done for two different materials pressure vessels. The variations in the thickness of the pressure vessels have been considered for the analysis for different internal pressures. The common characteristic of the pressure vessels solved is that the radial and tangential stresses vary in the same nature of curve for different thickness of vessels.
Lathe-Types, Parts, Feed Mechanisms, Specifications,Lathe Accessories and Att...rajguptanitw
Who could ever think of manufacturing metals and other materials like wood and plastic without the lathe machine? Since the lathe machine is an important tool used in the machining process, which is an integral process in the manufacturing technology, it is just fitting to learn about it.
Machining is one of the most important material removal methods in the technology of manufacturing. It is basically a collection of material working processes that involves other processes such as drilling, shaping, sawing, planning, reaming, and grinding among others. Machining is practically a part of the manufacture of all metals and other materials such as plastics, and wood as well. An important machine that is useful in machining is the lathe machine.
A lathe machine is generally used in metalworking, metal spinning, woodturning, and glassworking. The various operations that it can perform include the following: sanding, cutting, knurling, drilling, and deforming of tools that are employed in creating objects which have symmetry about the axis of rotation. Some of the most common products of the lathe machine are crankshafts, camshafts, table legs, bowls, and candlestick holders.
The first lathe machine that was ever developed was the two-person lathe machine which was designed by the Egyptians in about 1300 BC. Primarily, there are two things that are achieved in this lathe machine set-up. The first is the turning of the wood working piece manually by a rope; and the second is the cutting of shapes in the wood by the use of a sharp tool. As civilizations progressed, there have been constant modifications and improvements over the original two-person lathe machine, most importantly on the production of the rotary motion.
The production of the rotary motion therefore evolved according to the following procedures: the Egyptians manual turning by hand; the Romans addition of a turning bow; the introduction of the pedal in the Middle Ages; the use of the steam engines during the Industrial Revolution; the employment of individual electric motors in the 19th and mid 20th centuries; and the latest of which is the adaption of numerically controlled mechanisms in controlling the lathe machine.
For the lathe machine to function and perform its operations, various important parts are integrated together. These essentials parts make up the lathe machine.
ANALYSIS OF A THIN AND THICK WALLED PRESSURE VESSEL FOR DIFFERENT MATERIALS IAEME Publication
In the present work the problem of calculation of the stress developed in the thin and thick cylindrical pressure vessels is numerically solved by using software in C++. The analysis has been done for two different materials pressure vessels. The variations in the thickness of the pressure vessels have been considered for the analysis for different internal pressures. The common characteristic of the pressure vessels solved is that the radial and tangential stresses vary in the same nature of curve for different thickness of vessels.
Lathe-Types, Parts, Feed Mechanisms, Specifications,Lathe Accessories and Att...rajguptanitw
Who could ever think of manufacturing metals and other materials like wood and plastic without the lathe machine? Since the lathe machine is an important tool used in the machining process, which is an integral process in the manufacturing technology, it is just fitting to learn about it.
Machining is one of the most important material removal methods in the technology of manufacturing. It is basically a collection of material working processes that involves other processes such as drilling, shaping, sawing, planning, reaming, and grinding among others. Machining is practically a part of the manufacture of all metals and other materials such as plastics, and wood as well. An important machine that is useful in machining is the lathe machine.
A lathe machine is generally used in metalworking, metal spinning, woodturning, and glassworking. The various operations that it can perform include the following: sanding, cutting, knurling, drilling, and deforming of tools that are employed in creating objects which have symmetry about the axis of rotation. Some of the most common products of the lathe machine are crankshafts, camshafts, table legs, bowls, and candlestick holders.
The first lathe machine that was ever developed was the two-person lathe machine which was designed by the Egyptians in about 1300 BC. Primarily, there are two things that are achieved in this lathe machine set-up. The first is the turning of the wood working piece manually by a rope; and the second is the cutting of shapes in the wood by the use of a sharp tool. As civilizations progressed, there have been constant modifications and improvements over the original two-person lathe machine, most importantly on the production of the rotary motion.
The production of the rotary motion therefore evolved according to the following procedures: the Egyptians manual turning by hand; the Romans addition of a turning bow; the introduction of the pedal in the Middle Ages; the use of the steam engines during the Industrial Revolution; the employment of individual electric motors in the 19th and mid 20th centuries; and the latest of which is the adaption of numerically controlled mechanisms in controlling the lathe machine.
For the lathe machine to function and perform its operations, various important parts are integrated together. These essentials parts make up the lathe machine.
L’applicazione, denominata ALBERT, consiste in un robot telecomandato ad uso didattico, basato su tecnologia Arduino, pensato e sviluppato come attività motivazionale a sostegno della didattica tradizionale.
Classe Digitale è un innovativo registro elettronico per la scuola di ogni ordine e grado.
Classe Digitale è stato premiato da ForumPA come una delle 12 migliori soluzioni innovative del 2015 per la Pubblica amministrazione Italiana.
SCOPRILO
www.imasweb.it
2. FUNZIONAMENTO BASE DEL DISPOSITIVO
Un sensore a ultrasuoni è un modulo formato da due capsule (trasmittente e
ricevente) in grado di calcolare la distanza di un ostacolo
semplicemente calcolando il tempo che impiegano gli ultrasuoni per
tornare dall’ostacolo alla capsula ricevente.
Il sensore che utilizzeremo è l’HC-SR04 che ha 4 pin:
1. Vcc che va collegato ai 5V di Arduino Uno;
2. Gnd collegato al pin Gnd (massa) di Arduino Uno;
3. Trig collegato al pin 7 di Arduino;
4. Echo collegato al pin 8 di Arduino.
3. FUNZIONAMENTO
Il Trig (capsula) genera un suono. Il suono
è un’onda che, viaggia nello spazio finché
non trova un ostacolo e torna indietro, alla
capsula apposita che serve appunto per
ricevere il suono.
4. FUNZIONAMENTO BASE DEL DISPOSITIVO
Per la legge della fisica
spazio /tempo = velocità(del suono)
Conoscendo la velocità del suono (340 m/s), e considerando il
tempo che l’onda impiega per tornare, viene calcolata la distanza.
spazio= velocità(del suono) x tempo
8. PROGETTO
Scopo:
Mediante l’utilizzo del sensore HC-SR04, è
possibile segnalare la presenza di un ostacolo.
Inoltre in base alla distanza rilevata dal sensore
HC-SR04, si aziona un cicalino facendolo
suonare con frequenza proporzionale alla
distanza dall’ostacolo.