1. Portable. Easy to carry and use. Low weight. Cheap. Simplicity. Made from wood and aluminum. Project Portable Chair GE 105 (Introduction to Engineering Design) A chair is a piece of furniture with a raised surface used to sit on. The Chairs are most often supported by four legs and have a back. There are many kinds of a chair that are completely different in their shape, size, color, and also what it is has made of. we all need to be comfortable, especially when we walk or stand up for a long time or when we are in the school or when we are in the markets or even at home, so chairs are important for our daily life. Primary Objective : Design a portable chair to be easy to carry and move it anywhere, especially for the old people and for special needs, so they can carry the chair anywhere they want. Secondary Objectives : The chair will be easy to use, not heavy, nice shape, will be design as a bag, marketable, portable, low cost and easy to make. Section: 35539 BY: Group 5 Section: 35539 BY: Group 5 SUPERVISOR: Dr. Mohanad El Harbawi There are a lot of chairs in the markets, different shapes and types. However, these types have some weaknesses regarding the design. The first problem is that the chairs in the markets are fixed (not portable), and cannot be moved easily. The second problem is the weight of the chairs in the markets are very heavy, especially for the old people to carry them ever they want The third problem is the cost of the chairs in the markets are expensive. - The chairs in the markets are fixed, heavy and expensive. - Best solution is (portable chair). - Material suggested is wood. - Wood is flexible, not heavy, very cheap and has a nice shape.INTRODUCTION 1 PROBLEM STATEMENTPROBLEM STATEMENT 2 OBJECTIVES 3 Criteria 5 METHODOLOGY 4 RESULTS AND DISCUSSIONRESULTS AND DISCUSSION 8 CONCLUSION 10 Design the chair to be carried as a handbag. Size: length: 47 cm, width: 35 cm, height: 43 cm. Weight not exceed 3 kg. Cost not exceed SR 100 SR. 3 years lifetime.Constraints 7 Design a portable chair. Easy to carry and move it anywhere. Should be carried as a handbag. Should be easy for old people. Weight must be less than 3 kg. Cost must not exceed 100 SR. Must be safe. Applied weight should be less than 90 Kg. Need AnalysisNeed Analysis 6 FunctionOption 1Option 2Option 3 Material of the baseSteelPlasticWood Material of the legsSteelPlasticAluminum CoverHeavy ClothLight ClothLeather FixGlueNailsweld Criteria Concept Easy to Carry and Use Low Weight Low Cost Durability Score Weight25 Design (a) 323 9 425 755075 225 Design (b) 988 6 775 225200 150 Design (c) 9105 2 650 225250125 50 From the comparison table we chose design (b) because it has the highest points. Design (b) is flexible, not heavy, very cheap, durable and has a nice shape. Sketch & PictureSketch & Picture 9 Start End Problem Identification Search for Information Search for Information More Information Needed? More Information Needed? Forming Ideas Search for Alternative Proposals Search for Alternative Proposals Evaluate Proposals Any Proposal Feasible? Any Proposal Feasible? Conceptual Design Preliminary Design Final Design Build and Test Product Acceptable? Product Acceptable? Delivery of Product Yes No Yes No