2. REVIEW OF THE RELATED LITERATURE 2.1. Background of Pneumatics The word “pneuma” comes from Greek and means wind. The word pneumatics is the study of air movement and its phenomena is derived from the word pneuma (S.SATHIYARAJ, V.SELVAKUMAR, 2015). Today pneumatic system is mainly implicit the application of air as a working medium in industry which especially driving and controlling of machines and equipment. Pneumatic systems is powered by compressed air or compressed inert gases which must be made available in sufficient quantity and at a pressure to suit the capacity of the system. The first time pneumatic system was being adopted, however it had to deal with the question of compressed air supply. The key part of any facility for …show more content…
Nowadays, the important role of pneumatic systems in industries or modern car garage, the automation can be seen in many industrial devices, but, with the evolution of industrial automation, speed and reliability, the characteristics of low friction and long life-time are required more and more often for all pneumatic actuators. Most industries and car garage are using pneumatic system in development of automation solutions (Tokashi L.R. 1999). The main advantages using pneumatic systems are economy and simplicity and the following reasons affirms the benefits of automation which …show more content…
The principle of working is that a car to be lifted is driven in between the posts and is parked in a chalked out area with arms of the lift spread out sideways as shown in Fig 1. The arms are then rotated under the car floor, while installing the two post the garage personnel must estimate the place to put the arm tips, so that any damage to car floor or other parts underneath the car can be avoided. Then operator pushes a button that drives the pneumatic unit to provide the lift action using the prismatic joint employed along the post columns. The pneumatic systems for car lift has been developed and deployed around (Y. Rufeng,
Since there are so many options on the market, take several options in consideration and choose the best one according to you specific requirements. Gather all information, so you can compare in-floor with fold-out ramps and choose one according to the conditions you will be using it. If you're based in an area where it rains and snows a lot, an in-floor lift may be solution to helping you keep your interior clean. Fold-out lift may be a better option if you live in area with lots of curbs and hills.
Dated back as far as 1866, the idea of an “Air Ambulance” has been on the minds of certain individuals across the world. Paris, France first used the hot air balloons in order to evacuate more than 160 soldiers from the besieged city to medical care facilities.3 In the beginning, using a hot air balloon to rescue shipwrecked sailors seemed logical since the balloons where already delivering mail and supplies across the area of operations. This action dire...
Air pressure can be defined as the impact air has against all the surfaces the molecules of air touches, and is measured in Pascals – one Newton per square
Step 1: Remove the jack, spare tire and lug wrench. To prevent personal injury, remove the spare before raising the vehicle.
The pneumatic tires caught on quickly in the tractor industry because it was such an improvement to the tractor. “In 1933 pneumatic rubber tires were available on certain tractor models of the leading companies” (Hall). The pneumatic tire became standard on tractors and led to the end of the steel wheel. The pneumatic tire was a huge improvement to the tractors and are still used on most tractors
Anybody and everybody can become an industrial machinery mechanic; especially, those who are passionate about getting their hands plastered in motor oil, grease, and other mechanical lubricants. These people will more than likely be ecstatic about getting into industrial machinery mechanics. They need to be able to put in one hundred ten percent of their effort into becoming an industrial machinery mechanic. An industrial machinery mechanic’s overall objective on the job is to stop a mechanical error before it happens. An industrial machinery mechanics are often caught repairing, maintaining, and fabricating machinery. They will be required to have certain education and training as well as some on the job training or complete an apprenticeship program. They will receive many benefits for working in this particular field.
Sound is defined as areas of high and low pressure that move outward to form a longitudinal wave. The amplitude and pitch of the sound is dependent on the source and amount of energy produced. Sound is produced by vibrating objects, the vibrations cause disturbances in the surrounding air molecules. When the vibrating object moves outward it causes the air molecules around it to compress and create a high pressure region. As the object moves inward the air molecules expand and create a low pressure region. The high pressure regions are called compressions and the low pressure regions rarefactions. The equation of sound waves is speed = wavelength x frequency or v = f x .
Opercular pumping is a mechanism utilized by certain fish for gas exchange. An opercular pump is used to pump water through the gills in an almost continuous unidirectional flow (SHSU). A dual pump is used in tandem in order to drive the unidirectional flow, both a buccal cavity and opercular cavity work simultaneously. The oral valve along the buccal cavity opens, allowing an influx of water. This influx of water causes an expansion of the opercular cavity, dropping the pressure (Hall). Water then enters into the opercular cavity and flows out due to opercular cavity compression. This compression pumps water out which leaves fresh air in the buccal cavity to be brought to the lungs for respiration. Lungfish utilize a different method of
The first industrial robot, built in 1961, was a mechanical arm used to load presses. After the development of the computer and the CNC (Computer Numerical Control) in the 1970?s, the world saw great advances in the development of robotic control and the quality of robot manufacturing. As a result, there has been acceptance of the industrial robot world wide, improving the productivity and quality standards of industry (Hodges 3-5).
The first stage of automation in the metal industry, completely mechanical,simple and automatic looms that were carried out for specific parts. It loomsautomation, cam, changing settings, making the stop is provided. It’s also the first bench,with chip removal, screws, bolts and nuts, pieces were produced. This so-called automata cam Machine tools developed up to the present time it has reached. However, the program, in the form of a camand there is no flexibility of inventory adjustment that is done. The lack of flexibility of programmingmade during the manufacture of the accounts and the difficulty of the cam and the transition from one track to another, The length of time during the automation of machine tools developed as a result of new types of took needs.
The roles of the circulatory and respiratory system both carry important responsibilities and are essential in their jobs to the human body. The circulatory system is one, if not the, most important system in the human body. The circulatory system is made up of the heart, blood, and blood vessels. Within the blood vessels, there are three types: arteries, veins, and capillaries. The heart is an organ made up of cardiac muscle that has a role similar to a pump. When the muscles in the heart contract, it pumps fresh blood away from the heart, through a main artery called the aorta, and to the organs and cells of the body. Nutrients and oxygen then enter the cells through diffusion of the tissues. The respiratory system transports oxygen to the circulatory system. When transporting oxygen to the circulatory system, this will in turn transport oxygen to the rest of the cells in the body. Aside from transporting oxygen to the body, the respiratory system also plays a role in the removal of carbon dioxide and other contaminants in the body. These two systems effectively and efficiently work together in order to supply the body with oxygen and remove carbon dioxide and any other
I chose to gather information about mechanical engineering because I would like to pursue a career in this field. mechanical engineering is a broad subject with countless definitions at best it is simply the analyzation and creation of moving mechanisms. My grandfather always pushed me to be an engineer, because of him I've learned to do well in math and enjoy taking things apart and putting them back together. It is important to understand the education or training requirements, skills or talents needed, salary and benefits offered, and the duties of a mechanical engineer when making this decision.
I want you to think back to what might be the greatest invention ever. Dependant upon how well you know your history you could possibly say the wheel, the car, the airplane, the television, the autonomous robot. All of these are great ideas that have different eras in history, but they all have something in common, these creations were all invented by engineers. Do not get the misconception that engineers have been around since the dawn of time but the concept of engineering itself has. Those great revolutionaries all had ideas and solved problems which are still qualities that engineers of this day and age use. Webster defines engineering as, “the work of designing and creating large structures or new products or systems by using scientific methods.” Those people created new products so they would today be considered engineers, but they are slightly different. What makes them different is the field that they would be considered a part of. The broadest one of the oldest forms is mechanical engineering, which is my future profession.
velocity of sound in applications like airplanes travelling at high speeds, projectiles etc. If the Mach number of the flow field is less than or equal to 0.3 then the flow field is considered as incompressible. The flow Mach number more than 0.3 is compressible. The flow can be classified as follows depending on the value of Mach number