Review of
An improved mathematical program to solve the simple assembly line balancing problem
by
Rafael Pastor and Laia Ferrer
in
IOC Research Institute, Technical University of Catalonia,
Avenue Diagonal 647, (edif. ETSEIB), p. 11, 08028, Barcelona, Spain
(Received 20 July 2007; final version received 26 September 2007)
International Journal of Production Research
Vol. 47, No. 11, 1 June 2009, 2943–2959
Reviewed by Shiddarth Pitchai
IME 550- CRN 17747: Operations Research
Professor Ismet Esra Buyuktahtakin
December 3, 2014
Note: This paper for study purpose only.
Introduction
This paper is focused around planning and scheduling in production line, which propelled me to choose it. Simple Assembly Line Balancing Problem, a hypothetical model which is picking up prevalence, can be executed in large scale manufacturing as its point is to either to diminish the workstations (SALBP-1) or decrease the process duration (SALBP-2). Several papers have been published on this, the first one being formulated as 0-1 math program by Bowman and later modified to four 0-1 formulation by Patterson and Albracht(1975). First and foremost we have to discover a range of the workstations Ei and Li with a specific end goal to relegate the undertaking i to the earliest and most recent workstation, just like as any scientific model a preprocess is done.
Taking ti as process time; PTi as set of precede task; STi as set of succeed task, value of ct and an upper bound on
In the late 1800’s and early 1900’s the automobile was considered an expensive, custom made, consumer product that only the wealthy could afford to dazzle themselves with. In fact, in 1895 there was a report of only 300 cars in the United States, but that number grew dramatically in the years to come to nearly 1.7 million by 1914 (Car History, n.d.). This increase was due in part by two major shifts in the American society; the new consumer economy and the ideas that every family in America should be able to afford an automobile. Henry Ford was a large contributor to this massive increase in the United States and would make changes to the automobile industry that
In Some Lessons from the Assembly Line by Andrew Braaksma, my first interpretation of this article was that the authors main point was that decisions you make today, will affect your future. After rereading and careful analysis, the authors main point has changed. The author is not speaking of what my first interpretation was, but he is stating you cant learn everything in school. As I re-read the article using what I have learn, I see that he is explaining lessons that he has learned outside the classroom. He explains his first person accounts of the differences he has experienced between school and factory life, also giving his readers examples of these lessons learned outside of school.
The assembly line needs to produce 6 units per hour and there is room for only four workstations. The tasks and the order in which they must be performed are shown in the following table. Tasks cannot be split, and it would be too expensive to duplicate any task.
The JC Gear Company has decided to initiate a project aimed at automating its production planning and control system. Among the options, the company focuses on two alternatives: (1) purchasing the most suitable system off of the shelf and modifying it according to its individual production needs; or (2) developing a system
Akveld, M., & Bernhard, R. (2012). Job shop scheduling with unit length tasks. RAIRO -- Theoretical Informatics & Applications, 46(3), 329-342. Retreived from http://search.ebscohost.com.ezproxy.liberty.edu:2048/login.aspx?direct=true&db=iih&AN=85410818&site=ehost-live&scope=site
During reassessment for article "Some Lessons From the Assembly Line" by Andrew Braaksma (2005), I concluded similar notations, and judgements. What I developed from the material is that life has moments of bliss, nativity, and hardships. This was related by sharing experience spent at a summer job at an assembly line, clocking hours, and followed going back to college life after their time at the summer job. Also, Mr. Braaksma, expressed that college life was lenient in contrast to the summer position, emphasizing on a lack of security, complacency causes injury, and an education is valued. However, individuals tend to lack in society, within school, and even the valued education will show within the production of work. In turn, also causing a lack of security, complacency, and a worthless education. With that, an education need to be valued, and developed throughout to ensure continued success.
In Andrew Braaksma 's essay “Some Lessons from the Assembly Line,” he tells his personal insights, lessons learned and experiences, while he works a temporary summer job in a factory located near his hometown during college summer break. Braaksma describes his deep appreciation for receiving his education as he attended college and seeing what his life may have been like working a blue collar job in a factory if he did not go to college. As the majority of college students, Braaksma works during the summer to pay for his college books, beer as well as to reduce his summer housing expenses. More importantly, Braaksma chooses to move home and work at the local factory while his classmates are busy working in food service or at a local retail store. Obtaining a higher education will take him far in life without the threat or possibility of having to work a blue collar job in a factory.
Could you make it in the grind of the assembly line in the blue-collar world? In reading Braaksma's "Some Lessons From The Assembly Line", the main idea is how important college education is, which is conveyed in a number of different ways. The author looks at the experience they had at assembling line job on their summer break and how awful it was. Comparing it to the easy-going lifestyle as a college student. The article’s main claim of education being an important avenue to take is an important lesson to be taken seriously because of the author’s negative view of the assembly line, positive view of being at school, and the value the author holds in education.
In the article “Some Lessons From The Assembly Line” by Andrew Braaksma (2005), the author is expressing his experiences of working in a blue-collar job during the summer while going to college, with the goal of encouraging people and students to value higher education. The author realizes that blue-collar work has its disadvantages and that higher education is important, as he states,
The article "Some Lessons from the Assembly Line" by Andrew Braaksma, gives you ride a through the life of a blue-collar worker and the importance of investing in yourself with a college degree. The author discusses how spending summers working as a blue-collar worker at a factory in his hometown, makes him appreciate the opportunity to attend college. The author explains what his life would be like had he not decided to obtain a college degree and add value to his life. I can relate to the author from my own personal experiences with my job and learning how valuable a college education could be. I have missed several opportunities to advance and move up with my company because I didn't have a degree. Now that I’m in school I can also
When I revisited “Some Lessons from the Assembly Line”, the author 's goal has changed for me. It has expanded and became broader. Because I see now that the author is trying to show the readers, the lessons he learned while working his summers away on the factory floor.Adjacent to that propose the author wanted to show the readers the different ways he learned the lessons, which made him appreciate his opportunity to go to college. My evidence for this is when the author refers to, “These lessons I am learning, however valuable, are always tinged with a sense of guilt." "At times, I feel almost voyeuristic, like a tourist dropping in where other people make their livelihoods. My lessons about education are learned at the expense of those
The title of the article is "Some Lessons From The Assembly Line" by Andrew Braaksma. After reading the article it made me realize how important it is to have an education and how fortunate I am to be able to have one. It makes me want to stay in college because I see how it is a struggle for some people today to find a job with decent pay. Braaksma's goal for writing this article was to teach his audience about the value of education. He discussed the value of his work experiences. He also mentioned that the most stressful thing about working in a factory is knowing that your job could disappear overnight. Braaksma experienced this himself when one of his co-workers had told him that the unit they were working in would be shut down within the next six months and moved to Mexico, where people would work for lower pay. Braaksma makes an effective argument about the benefits of receiving a college education by using personal anecdotes and imagery.
In this case study, production planning of MacPherson Refrigeration Limited (MRL) for the next year is conducted. In order to
To minimize total waiting time and stockpile re-handling costs (Keep operations costs as low as possible).
General Motors (GM) is one of the most renowned automakers in the world. GM is well-known for their streamlined assembly processes which saves money and time in the production of cars. A study was conducted at one of GM’s vehicle assembly plants as part of a research project to examine how the ABC model provides value. GM specifically focused on its potential to determine expected energy use in a plant for varying production schedules in order to evaluate Demand and Response offers.