Lecture 2. & Product Association

Transcription

1 Lecture 2 Background Research & Product Association

2 To have good design: To have as many solutions possible To be creative To comprise between multiple and conflicting requirements To make the right choice and decision To work in team Soln: must have a complete research p background Lecture 1 2

3 Why people design: problem Problem Definition Set by somebody: Very ygeneral statement JFK said: before the end of decade, to land a man on the moon and bring him back safely Very focus problem I was using these forceps last night, Eric. They kept slipping into the tray. I think we could do better than that In between these extremes, more likely to have in design world Lecture 1 3

4 Sample With problem in mind, mission statement should be developed. Mission Statement: e t one-handed household od water mixing tap with the following characteristics (Pahl and Beitz, 1984) Throughput: 10 l/min Maximum pressure: 6 bar Normal pressure: 2 bar In general problem statement or Mission Statement should have a goal, some constraints and some criteria by which the successful solution might be recognized. Lecture 1 4

5 Background research Background research is carried out after the problem and mission statement is set. With the background research, the detail specification will be outlined. Lecture 1 5

6 1. Market Survey Interview the user Supplier Shops Newspaper, magazine, Catalogue It is expected that you will have trend of the product in the market and its future trends. 2. Field Research Watch the users: you have to watch how the student used the table and analyze the possible 3. Expert Advice 4. Professional societies and government agencies 5. Codes and related law 6. Patent 7. Library 8. Internet

7 Why customer needs? 1. Ensure that the product is focused on customer needs 2. Identify the hidden needs 3. Provide a fact base for justifying the PDS 4. Ensure no critical customer need is missed or forgotten Lecture 1 7

8 Identification of the customer needs 5stepprocess process 1. Gather raw data from the customer 2. Interpret the raw data in terms of customers needs. 3. Organize the needs into hierarchy of primary, secondary and (if necessary) tertiary needs. 4. Establish the relative importance of the needs 5. Reflect the result and the process Lecture 1 8

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10 Step 1: Gather raw data from customers s Who is the customer every driver 1. Interview 2. Observing the product in used 3. Focus groups: mostly be done on big company by gathering a group of customer to discuss on the product. It is a facilitated discussion. Lecture 1 10

11 Step 2: Interpret et Raw Data Example of customer need on cordless hand drill I need to drive screws fast, faster than by hand Mean: The product drives screws faster than by hand A point so I can scrape paint off of the screws. Mean: The product allows the user to work with screws that have been painted over.

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13 Step 3: Organize the needs into a Hierarchy Previous steps will result in a number of need statements Group all the needs according to the classification and list them in hierarchical order. Needs on precision Needs on longest distance Needs on maintenance Needs on human factor Needs on sizes Lecture 1 13

14 Step 4: Establish the relative importance of the needs List down all the categories of needs according to its importance. Lecture 1 14

15 Step 5: Reflect on the results and the process Reflect the above result if anything has not been considered Expand the above to develop more detail specifications using the research background. Lecture 1 15

16 Students Mistakes Make assumption Internet is everything Background research without conclusion Have the information and fails to acknowledge in design report Lecture 1 16

17 Gathering Information: Internet net Google it: main problem is not getting hits that we want Keyword usage ie energy source no f hits: 105,000,000 energy source mechanical No of hits: 637,000 "energy source" - mechanical toy No of hits: 10,700 Search for images, video, you tube Search for specific Google: Google scholar, Google patent PSZ DataBase: Springer Link, Science Direct, p g,, Lecture 1 17

18 Resourceful internet net www UTM PSZ Springer link, BS standards, Bernama, MS standards, newspaper archives etc Google Scholar, Google Book How stuff works: // Mechanical mechanism: // com/mechanism //kmoddl.library.cornell.edu, and // Lecture 1 18

19 Lecture 2a Product Association

20 Where is product association in design process Both in background research and concept generation Background research: understanding customer needs, understanding working principles, Concept generation: understanding function analysis (force flow) for function decomposition. Lecture 1 20

21 Product Association Identification of needs: have learnt in previous section by walk through with the product Understanding d the functions cto and the decomposition of the functions Understanding the working principles Lecture 1 21

22 What is product association Product association is to study the related product in order to understand the working principle and give us more area to be explored for research background.

23 Single product association To go detail on the specific information Purpose: how its work?, Working principle of the machine, Functional Aspect Example: working principle Trigger mechanism Holding Stability aspect

24 Multiple product association Common: all the gadgets have trigger method Stability is considered in every design Not common: Method of storing the energy: stretching the launching rubber, stretching the gadget Different form of rubber band: rubber band and rubber ball Objective: to understand what is the must function in the system and what the extra function.

25 Product Association: Analogical Study Do not choose only related product and other Do not choose only related product and other unrelated product can be used as analogical study

26 Function Analysis (Force Flow) Function is the logical flow of energy, material, and information between objects or change of state t of an object caused by one or more of the flows. Some parts may have more than one functions, i.e. bicycle handle is used to steer, to exert the force during cycling and to stabilize the bicycle. Some functions may handled by many parts, i.e. force exertion: pedal, handle, tyre Lecture 1 26

27 What do we get from production association? Understanding the working principles p The diagram for force flow of the system and sub-systems. Understanding for function and behavior for concept development. Lecture 1 27