cct333-lab5


 * Tutorial 5: Human Scale Ergonomics and Frank Gilbreth's 'Therbligs'

View Human Scale Ergonomics** http://www.youtube.com/watch?v=S_F-yaQ4Xqc&feature=PlayList&p=6AD028A6EA9C3474&playnext=1&index=12


 * Write three paragraphs to define the term 'ergonomics'. (3 paragraphs)**

Ergonomics is the study between people and the things they use, which includes both physical as well as psychological effects. The example used was the office chair, where it is designed to shape and contour to a person's back as fit. By being able to move up and down, front and back, it provides a better support for the back system.

Cognitive ergonomics is defined as the psychological fit between people and computers. In order for computers to be used by people, they need to be created with simplicity so people are able to actually use them. The example used was a sunflower where the top of the flower moves in accordance to the sun. In relation to the design of the computer, it can be moved around to fit the person.

Ergonomics can also be defined as a process or a set of particular actions. As the example of the store, it is the process where the workers pick up the items, scan it through, put it in the bag, takes money and gives change accordingly. The way it is organized is part of ergonomics because it affects the way workers proceed with their actions.

Frank Gilbreth was an engineer that developed motion study by analyzing the process of bricklaying. It started because his father became unable after constant stooping from picking up and laying the bricks. Frank Gilbreth was concerned with their safety and productivity.
 * Who was Frank Therblig, and how did he utilize 'motion study'? (2 paragraphs)**

Brick laying was the first thing that was applied to motion analysis. Stooping, walking, reaching, inspecting, and laying was process of laying bricks. Frank Glbreth found that stooping to pick up the bricks was the motion that required the most energy and created the most strain. So he eliminated this step and eventually increased productivity by 200%.


 * Describe three categories Frank Gerblith used in the Therblig Analysis Checklist. (3 paragraphs)**

//Reach and Move// It is the process of reaching and moving of different body parts. It questions whether the process can be done quicker and more efficiently without moving and reaching which can lead to health and physical problems. Through the use of pulleys, conveyor belts and mechanics, it can reduce or eliminate movements.

//Grasp// This is the process of using hands to do the work. Whether to be grasped, held, picked up, moved, it is the workings of the hand. But tools can be used to help with the operators so that objects are easily graspable.

//Rest to Overcome Fatigue// This process focuses on conditions that people work in, making sure it is comfortable and need-fitting. The setting can make a difference because the workers need rest between working and on breaks. This determines whether workers are being overworked and whether there is a solution with mechanical contributions.