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essay in ergonomics
essay in ergonomics
essay on Ergonomics in the work place
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1. Evolution of Time Studies I. Initiation of Time Studies Fredrick W. Taylor’s body of work on time studies to improve manufacturing efficiency was so advanced, he is considered to be the father of time studies. Although he did not invent time studies, he promoted the idea of scientific management for the manufacturing industry in the early 1900s. The use of time studies can be traced back to 1760 when Jean Rodolphe Perronet, a French engineer, conducted an extensive time study on the manufacturing of No. 6 common pins. Perronet establish the standard of making 494 pins per hour (2.0243 hours/ 1000 pins). Later in 1820, Charles W. Babbage, an English economist, performed a time study on the manufacturing of No. 11 common pins. Babbage concluded that 5,546 pins should be made in 7.6892 hours (1.386 hours/ 1000 pins). Babbage published his book “On the Economy of Machinery and Manufactures” in 1832 (Niebel, Freivalds 2014). In 1881, Taylor (pictured below) started his time study efforts. Taylor’s journey to this point was unusual. He came from a wealthy family and had chance to attend Harvard University, but instead started as an apprentice at a machine shop. Later he began his career at Midvale Steel Works as a laborer, and moved up to time clerk, journeyman, lathe operator, gang boss, and foreman of the machine shop. During this time Taylor became interested in the proper method to do the certain jobs and what was considered a fair day’s work for the men under his supervision. He also studied at night and obtained a mechanical engineering degree at this time. (Barnes, 1963) It took 12 years to perfect his system. His system was based on tasks and that each worker’s assignments should be pre-planned by management. Each job shoul... ... middle of paper ... ... The use of work sampling can supplement the use of time studies and save time and resources. Human factors have had a tremendous influence on work design. Ergonomics plays a major role in the ways industrial engineers design the work to fit the human operators. In doing so, they can elevate the worker’s well-being and the entire system performance. A time study is still a useful tool with the goal of increasing efficiency that should include the additional objective of providing a safe and healthy work environment. (Muchinsky 2009) Additional References: Karger, Delmar W. (1987). Engineered Work Measurement. New York, NY: Industrial Press, www.mtm.org./index.asp Nicholas, John, Soni, Avi. (2006). The Portal to Lean Production. Boca Raton, NY: Auerach Publications. Muchinsky, Paul M. (2009). Psychology Applied to Work. Summerfield, NC: Hypergraphic Press Inc.
TONI, A.D.,TONCHIA, S. (1996) “Lean orgnanisation, management by process and performance measurement”, International Journal of Operations and Production Management, 16(2), pp. 221-236. [Online}. Available at: http://www.emeraldinsight.com (Accessed: 08 December 2011)
Lean is not a new concept and surfaced as a result of Toyota’s Production System. Manufacturing has been using lean principles since the 1980’s (Sarkar, 2008). Lean today goes beyond manufacturing into health, education,
This paper proposed to give an even minded perspective of Lean application. It shows how to look for when considering usage perspectives at every phase of the process. Both worth identification and administration quality change were characterized, and helpful empowering apparatuses, for example, RCA and Process Map-ping have been cleverly and fittingly sent with Lean Thinking. The paper investigates and clears up Lean by indicating how the procedure can be upheld to include incremental
“This machine may be turned by water or with a horse, with the greatest ease, and one man and a horse will do more than fifty men with the old machine. It makes labor fifty times less, without throwing any class of people out of business.” - Eli Whitney, 1793
Hollar, Sherman. Pioneers of the Industrial Age: Breakthroughs in Technology. New York: Britannica Educational Pub. in Association with Rosen Educational Services, 2013. Web.
Intense global competition, rapid technological changes, advances in manufacturing and information technology and discerning customers are forcing manufacturers to optimize manufacturing process, operations, and all the possible nodes of supply chains that enable them to deliver high-quality products in a short period of time (Karim et al. 2013). The origins of lean thinking can be found on the shop-floors of Japanese manufacturers and, in particular, innovations at Toyota Motor Corporation (Shingo, 1981, 1989; Monden, 1994; Ohno, 1988). These innovations, resulting from a scarcity of resources and intense domestic competition in the Japanese market for automobiles, included the just-in-time (JIT) production system, the Kanban method of pull production, respect for employees and high levels of employee problem-solving/automated mistake proofing. This lean operations management design approach focused on the elimination of waste and excess from the tactical product flows at Toyota (the Toyota "seven wastes") and represented an alternative model to that of capital-intense mass production with its large batch
...ted altogether, but by applying ergonomic concepts by administratively or engineering out the hazards, the risks involved can be drastically reduced. Additionally, reduced costs to employers through workers compensation claims and less time away from work occurs when redesigning the workplace or task itself thus increasing worker satisfaction and decreasing employee injuries. But regardless without a proactive approach from management and employees looking for ways to reduce ergonomic stressors in the work place either by following guidance through administrative controls or failing to use the materials handling equipment provided by the employer, the ergonomics program will fail. And to reduce those pricy back injuries, a comprehensive look at the work practices and employees is required to incorporate the ever changing technology to create safer work environments.
Tinker Air Force Base in conjunction with the 548th Propulsion Maintenance Squadron is embarking on a journey of Lean Production. The jet engine repair business has become one of fierce competition throughout the world and within the United States. Companies today demand quality parts on time and on cost; it is management’s responsibility along with employees of the 548th Propulsion Maintenance Squadron to deliver this demand to the customer, the warfighter. The literature review contains four sections that focus on Lean Production.
If you were told to believe a side of an argument that did not have majority of evidence points on its side, would you? The theories of evolution, creation and intelligent design have been a debated controversy for years and years. These three theories have three different ideas. The theory that creationists have is to believe that concept and design require a Creator. Creationists usually tend to believe that each organism is created as a single and distinct organism. Evolutionists tend to believe that all life started from single celled organisms. They believe that these single celled organisms are part of a continuing evolution over a very long period of time and that this evolution results in the development of new varieties and different species. People who believe in intelligent design believe in the theory that the universe cannot have arisen by chance and was designed and created by some intelligent entity. Evolution is the theory that is most probable because of the fossil record, similarities in all organisms and genetic changes in a population over time.
Since the early Paleolithic period, civilizations have gone through many changes, including the way in which people find their food and the way they settled and live. This change shifted through the Paleolithic period all the way through the Agrarian Revolution. Changes included civilizations shifting from a nomadic type of people to a settled, farming people in the Agrarian Revolution. These changes took place from about 2.5 million years ago, or the beginning of what is called the Paleolithic Period, all the way to some of the first societies. The main thing that was changed was the way in which people found their food and where they settled. These changes brought forth new techniques and new tools to use. These tools and techniques
Lean manufacturing refers to systematic identification and elimination of waste through CI processes in pursuit of perfection (Khan et al. 2013; Yang & Yang 2013). Lean production is now used worldwide in manufacturing plants to eliminate waste from all ar...
Lean production is an approach to production developed in Japan. Toyota, the Japanese car manufacturer was the company that invented lean production. The whole aim of lean production is to reduce the quantity of resources used up in production. By doing this, lean production uses less of - factory space, materials, stocks, suppliers, labour, capital and time. Lean production reduces costs, increases efficiency and output and improves motivation. Lean production involves using a range of practices designed to reduce waste and improve productivity and quality.
Timekeeping has been an integral part of life ever since humans stepped foot on the earth. Once humans realized the difference between night and day, moon phases were used to determine months, changing seasons and record years. Soon humans realized the connection of time with the sun’s position and started using shadows to keep time thus creating the sundial, used foremost by the Egyptians and Greeks. As life become more complex, so did the need to keep time accurately. Initially, the mechanical clock was invented in 1000 AD. We then graduated to using celestial time and finally the atomic clocks were invented in 1967. These atomic clocks are so efficient that they make other methods of timekeeping seem redundant. Thus we have come a long way in timekeeping and I strongly believe that continuing to use the earth’s rotation around the sun as a method of timekeeping would mean ignoring the advances made in timekeeping over the course of history and moving further back into the past.
Others have noted that we're all travelling forward in time (in fact, the theory relativity says that we are all travelling at the speed of light through spacetime) so I'll tackle the travelling-backward-in-time part of the question. And that breaks down into issues of whether backwards time travel is a theoretical possibility, and whether it's a practical one.
Frederick Taylor thought that changes in the work process and/or rules would advance efficiency and productivity. He originated the scientific management approach in public administration. It was based on the idea that work processes should be observed via experiments which would greatly improve productivity. It would do so by doing away with the rule of thumb work methods and replacing them with the results of actual timed observations (14). The application of the scientific approach to management methods would lead to optimizing task time by simplifying the job. It would mean observing work processes to find the one best way to perform each job (15). Once the best way was discovered, all employees were to use it. The simplification of the job would improve task time. This method would lead to increased productivity, higher wag...