...CHAPTER 1 INTRODUCTION 1.1 Problem Definition The rated power generated from the engine of a heavy duty vehicle can only become useful when effectively transmitted from the engine via the fly wheel to the transmission system of the truck and finally to the final drive. The propeller shaft or the drive shaft which is the mechanical component used for transmitting torque and rotation is used in transmitting these generated power to the final drive. However, when the Ghana Armed Forces introduced the Chinese made Dong Feng trucks which are five ton troop carrying vehicles (TCVs) for its operations, their propeller shafts recorded a high rate of failure. This inevitably affected the morale of troops and the operations of the Ghana Armed Forces. Some drivers of the truck fearing the propeller shaft failure could result in accident, hanged nylon rope or chain under the trucks to prevent a failed shaft from striking the ground. Below are pictures to that effect. This project therefore aims at identifying the causes of the failures of propeller shafts and recommend mitigating measures to them. Fig. 1.1 Nylon Rope Beneath the Propeller Shaft 1.2 Objectives The objectives of this project work are: * To identify the causes of propeller shaft failure of heavy duty trucks at the Base Workshop. * To recommend mitigating and preventive measures to the problems. 1.3 Justification It is anticipated that the findings of this project will...
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...understood to more realistically represent antenna systems. The main importance of the radial methods is that a quick antenna system proof can be completed in less than 15 minutes (often in only 5 minutes) not matter how complex the antenna system is of a typical home computers CPU time. Heading The course or direction in which a ship or aircraft is pointing or moving. - (Aeronautics) the angle between the direction of an aircraft and a specified meridian,often due north sa mga gusto ng number sa assignment Vor Describe the principles of the following A. Intercepting an inbound track - Tune and identify the required VOR beacon and orient the aircraft to ascertain the magnetic bearing of the aircraft to the beacon. Then rotate the OBS until the required inbound track is shown in the Bearing Selector Window. The TO indicator should then be visible. The aircraft should then be turned in the direction of the Deviation Indicator on to a suitable intercept heading, which is determined from the position of the aircraft as visualised from the information available from the orientation. Closure of the required track is shown by the Deviation Indicator...
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... a) Pitting and fretting b) Intergranular and exfoliation* c) Surface and stress 6. A combination of residual stress and corrosive agents will cause a) Filiform corrosion b) Stress corrosion* c) Exfoliation corrosion 7. Which material is most widely used in modern civil aircraft construction? a) Stainless steel b) Titanium alloys c) Aluminum alloys* 8. Cables can be tensioned using a) Bolts and nuts b) Turnbuckles* c) Locking wires 9. The process for protecting aluminum and aluminum alloys surface from corrosion is a) Metal spraying b) Zinc plating c) Anodizing* 10. Landing gear wheels use what bearings? a) Roller bearing b) Ball bearing c) Tapered roller bearing* 11. Which of the following is the most widely used cable in American manufactured aircraft? a) 1 X 19 Flexible cable b) 7 X 7 Extra flexible cable c) 7 X 19 Extra flexible cable* 12. Tensile strength of a material is determined by a) Divide the load to pull apart by its cross-sectional area* b) Multiply the load to pull apart by its cross-sectional area c) Divide the load to pull apart its cross-sectional area by bending it to 45...
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...The bearing industry Bearings industry of various sizes and specifications found their way into everything from space shuttles to household appliances, automobiles, dentist drills, roller skates, and computer disk drives. The bearing industry was facing a variety of complex problems. Policies favoring the steel industry were not always in the best interest of the bearing industry, which, as manufacturers of secondary steel products, was in the middle of the production chain. Because bearings were essential components of military and civilian machinery and equipment, the federal government had historically been a major customer. By following the life Cycle we have the stages of the industry in U.S which Timken operates: [pic] Start-up : Before 1990 , with increasing competition from Europe and Japan, the industry started a new segment . Fast growth : between the stage 1990 to 1998 , Shipments of ball and roller bearings grew steadily and peaking in 1998 at more than $5.8 billion .1999 and 2000, the value of shipments remained relatively strong Moderate growth: in 2001 ,the industry faced economic recession, decreased automotive demand, and the terrorist attacks on September 11, 2001. the value of shipments dropped dramatically , sinking to $5.3 billion, the lowest since 1995. There had been moderate growth in the sector in 2002, led by automotive production, which had risen 5% owing to sales incentives, including 0% financing . Plateau and Decline : the...
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...Introduction: HMT Bearings Ltd. ("HMTB") was incorporated in 1964 under the name of Indo Nippon Precision Bearings Limited. The Company was promoted as a state public sector company by the Government of Andhra Pradesh in technical collaboration with M/s Koyo Seiko Co. Ltd., Japan. It commenced commercial production in 1970. In 1980 the Company became a central public sector undertaking after it was made a subsidiary of HMT Limited ("HMTL"). The vision of the company is to produce & market bearings and other engineering components of world class excellence through total performance leadership. Company is strictly adhered to the standards, specifications stipulated in ISO-9001-2000. Objective: To explore the factors responsible for loss of company HMT Bearings Ltd. HMT Bearings began suffering a liquidity crisis in 1999-2000. It worsened 2002 and 2003, primarily due to a massive inventory buildup and accumulation of uncollected receivables. In mid-2002, the government and HMT Group explored shutting down HMT Bearings, taking the losses and pensioning off the employees. But that plan was rejected, out of concern for the impact on employment and high pension costs, and in the face of intense pressure by the Center of India Trade Union in Hyderabad. Rather than shut down HMT Bearings, government-funded bailouts were instituted, debt was converted to equity in order to eliminate the overwhelming interest expense. The key development in 2002 was the decision to seek a strategic...
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...PROJECT REPORT “WORKING MODEL OF MECHANICAL ELBOW UNIT” SUBMITTED BY Gautam M. Dobariya A PROJECT REPORT On “Working Model of Mechanical Elbow unit” Submitted by GAUTAM M. DOBARIYA -110210125040 In fulfillment for the award of the degree Of BACHELOR OF ENGINEERING In PRODUCTION ENGINEERING Government Engineering College, Bhavnagar Gujarat Technological University, Ahmadabad DECEMBER- 2014. Page | 2 GOVERNMENT ENGINEERING COLLEGE, BHAVNAGAR PRODUCTION ENGINEERING DEPARTMENT DECEMBER 2014 CERTIFICATE Date: This is to certify that the dissertation entitled “WORKING MODEL OF MECHENICAL ELBOW UNIT” has been carried out by GAUTAM M. DOBARIYA (110210125040) under my guidance in fulfillment of the degree of Bachelor of Engineering in PRODUCTION ENGINEERING (7th semester) of Gujarat Technological University, Ahmadabad during the academic year 2014-15. GUIDE (Prof. C.D. DOKAL) Department of Production Engineering, Government Engineering College, Bhavnagar, Gujarat-364002. HEAD OF DEPARTMENT (Prof. A.G. KUNTE) Department of Production Engineering, Government Engineering College, Bhavnagar, Gujarat-364002. 3|Page IDP/ UDP Project Statement Form (This is a sample format and departments can modify it if they need as per required scenario and sector) TITLE OF PROBLEM/PROJECT “WORKING MODEL OF MECHENICAL ELBOW UNIT” DICIPLINARY DICIPLINARY | INTER-DICIPLINARY SR.NO. DISCIPLINE/S Production...
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...before shaving, but with the new shaver, all you have to do is dip the blades in water and it'll work like a shaving cream/gel. It's a modification and improvement of an existing product. Bella and Birch Textured Paints: These can be applied like a wallpaper without the use of glue. It's a dynamically continuous innovation as it can exert a degree of influence on usage and behavior patterns. This doesn’t really change the demeanor/behavior of the applicator. Norplant Contraceptive: This is an example of a discontinuous innovation as this innovation required significant changes in behavior of significant importance to the individual. This kind of contraceptive is made of six small silicone capsules and becomes implanted in the upper arm of the female and stays effective for five years This requires the female to completely step away from the need of use of condoms. Sunkist Tuna in Patches This is an example of a continuous innovation because the new product is a modification of Sunkist's existing canned tuna. Behavior patterns would still be the...
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...stickers. A woman came up on the buzzer. “Hello?” Shōto searched for a camera to talk to. “My name is Todoroki Shōto. I go to school with Midoriya Izuku.” “Oh, of course!” The woman called for what sounded like her son. “You can come in now, Todoroki. He’ll be right out.” Inside, Midoriya tried tying his own shoes with two broken hands as his mother battled with doing it herself. “Hello,” she said. “It’s so nice to meet you, Todoroki.” “Mom, please,” Midoriya whined. “I got this.” Ignoring Midoriya’s complaints, his mother secured on his shoes and socks, then put on a light coat. Shōto bowed to the small family and gave them space as they worked out Midoriya’s casual outfit. “Don’t overdo it,” Midoriya’s mother warned as they left. “Your arms still need to heal. I don’t know what you’re going to do, but make sure you don’t overdo...
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...My best guess of Nursemaid's Elbow is that it was an injury sustained by a nurse while taking care of patients or a home caregiver who may not know proper techniques in moving a patient. Nursemaid's elbow actually is a dislocation of the elbow joint. Nursemaid's elbow is also sometimes referred to as "radial head subluxation" or "pulled elbow". This injury is seen in younger children up to age 6. Nursemaid's elbow can occur in an infant when they roll over onto the or a when a young child uses the hands to brace himself or herself during a fall. Other ways this injury occurs is when an adult catches a child by the hand to prevent a fall, lifts a child up by the hands or wrists, pulls a child's arm through a jacket or shirt sleeve, swings...
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...Technology and Health Care 19 (2011) 483–495 DOI 10.3233/THC-2011-0646 IOS Press 483 Rehabilitation Engineering Rehabilitation robotics Marko Munih and Tadej Bajd∗ Faculty of Electrical Engineering, University of Ljubljana, Slovenia Abstract. The paper presents the background, main achievements and components of rehabilitation robotics in a simple way, using non-technical terms. The introductory part looks at the development of robotic approaches in the rehabilitation of neurological patients and outlines the principles of robotic device interactions with patients. There follows a section on virtual reality in rehabilitation. Hapticity and interaction between robot and human are presented in order to understand the added value of robotics that cannot be exploited in other devices. The importance of passive exercise and active tasks is then discussed using the results of various clinical trials, followed by the place of upper and lower extremity robotic devices in rehabilitation practice. The closing section refers to the general importance of measurements in this area and stresses quantitative measurements as one of the advantages in using robotic devices. Keywords: Robot, haptic interface, virtual reality, measurement 1. Introduction The application of robotic approaches in neurological patient rehabilitation was introduced almost two decades ago [1]. Even though the number of robotic rehabilitation systems is large, the number of clinical trials remains quite...
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...Prosthetic Arm We have all heard the cliché “you don’t appreciate what you have until it’s gone”. For some it can be a materialistic thing as a car or a cellphone. Others are boyfriends or girlfriends that recently broken up. But for some, it can be something much more than that. Something that is more personal to them. To others it can be a limb that was lost from war, an accident, and diseases such as diabetes. We can only imagine on how hard life can be without the use of our hands. Unfortunately it is a brutal reality to others who do live day by day with only one or no arms at all. Prosthetic arms have very limited actions as some don’t bend with just a hook at the end of it. Some of the other more advanced prosthetic arms only bend and move from two places, the elbow and the wrist. With today’s technology increasingly advancing, and with the help of a university professor, the six million dollar man with robotic limbs is not too far from becoming a reality. Professor Michael Goldfarb from University Vanderbilt and his team have developed what looks to be the beginning of new prosthetic arms to be human like and very functional. “The prototype can lift (curl) about 20 to 25 pounds – three to four times more than current commercial arms – and can do so three to four times faster. "That means it has about 10 times as much power as other arms despite the fact that the design hasn’t been optimized yet for strength or power," [Michael Goldfarb] But what makes this arm even more...
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...teach for a month in Cambodia. When I come back I will be able to student teach and then graduate. Yes, I am so looking forward to graduation. Deep in my thoughts, I miss hearing the nurse call my name. The little old woman with a little too much perfume on nudges me and points to the door. Grabbing my coat, I whisper thank you before heading for the door. Inside the exam room, a nurse with shoulder length blond hair informs me that she is going to get the three shots and will be right back. A moment later, she returns with three needles and three alcohol swabs. Before administering each shot, she carefully cleans the intended injection site. She engages me in a conversation before she ever so cleverly sticks the needle into my upper arm injecting the serum. Placing a Band-Aid over each spot, she tells me to monitor the sites for possible swelling. I nod as I head out the door. Leaving the parking lot, my phone rings. My mom tells me to come over to my sister’s house and help her finish packing. I arrive at about 5:30 pm. After eating pizza, my sister and I finish packing the upstairs. Lifting a box, I feel an intense sharp pain in my armpit. I ignore the pain and keep on working. At 10:30 pm, we decide to call it a night and finish tomorrow. Driving home, the pain increases with each turn of the steering...
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...before shaving, but with the new shaver, all you have to do is dip the blades in water and it'll work like a shaving cream/gel. It's a modification and improvement of an existing product. Bella and Birch Textured Paints: These can be applied like a wallpaper without the use of glue. It's a dynamically continuous innovation as it can exert a degree of influence on usage and behavior patterns. This doesn’t really change the demeanor/behavior of the applicator. Norplant Contraceptive: This is an example of a discontinuous innovation as this innovation required significant changes in behavior of significant importance to the individual. This kind of contraceptive is made of six small silicone capsules and becomes implanted in the upper arm of the female and stays effective for five years This requires the female to completely step away from the need of use of condoms. Sunkist Tuna in Patches This is an example of a continuous innovation because the new product is a modification of Sunkist's existing canned tuna. Behavior patterns would still be the...
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...Format looks good. Keep the font style and size the same in the header as the rest of the paper, and use the words Running head on the title page. Title in the header should be all in CAPS. The Pediatric Motor Activity Log-Revised: Assessing Real World Arm Use in Children With Cerebral Palsy A Literary Review Mariah Nichols Psychology 232-01 J. Whitaker October 27, 2013 Uswatte at el. (Use all the authors names the first time and always include the date) set out to improve, and find the accuracy, of the Pediatric Motor Activity Log-Revised (PMAL-R) when compared to other measurements, such as the Motor Activity Log (MAL), used on adults. The MAL has patients rate their ability to perform 30 activities, designed for use of the upper extremities, with the arm that is more affected. The MAL tends to be more accurate because the patient is reporting the usage versus the caregiver that gives the report in the PMAL-R. “. . .four developments have contributed to the generation of methods for assessing activity of an impaired upper extremity in daily life” (p 149). Constraint-Induced Movement Therapy (CIMT) supports the movement of upper limbs to help improve arm use. CIMT has been proven to be more beneficial than compensatory tactics, and patients using CIMT have shown greater brain plasticity (include name and date, p. 149). The researchers here wanted to interview the participants in person rather than via a paper survey. This is the way the test was meant to be...
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...Chapter III Result and Discussion The Fruit Juice Extractor was conceptualized by the researcher in their shop classes at the Electro-Mechanical Technology Shops, College of Technology, DON MARIANO MARCOS MEMORIAL STATE UNIVERSITY (DMMMSU), Mid La Union Campus, San Fernando City. It was a product if creativity of the researchers. The Fruit Juice Extractor is a machine used to extract juice. The design, fabrication and construction of the fruit juice extractor involved the following processes such as designing, measuring, cutting, assembling, mounting, connecting and testing the individual materials and devices to produce precise equipment. Figure 1 shows the perspective view of the Fruit Juice Extractor consisting of various parts that play an important role in the smooth and safe operation of the machine. The following are the main important parts of the Motorized Fruit Juice Extractor: (1) Base & Barrel / Carrier Assembly (2) Motor (3) Barrel / Cylindrical (4) Type of compactom (5) Body (6) Belt (7) Blade Assembly (8) Pulley ASSEMBLY DRAWING A. A. A A Legend A. Body B B B. PULEY C C C. ANGLE BAR D. BARREL / CYLINDRICAL D D E. FRAME F. PAN BELT G. MOTOR F F G. G. E E Fig. 1 Perspective View...
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