Theory of Inventive Problem Solving (triz)



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2.0 The History of TRIZ


There are two groups of problems people face: those with generally known solutions and those with unknown solutions. Those with known solutions can usually be solved by information found in books, technical journals, or with subject matter experts. These solutions follow the general pattern of problem solving shown in figure 1. Here, the particular problem is elevated to a standard problem of a similar or analogous nature. A standard solution is known and from that standard solution comes a particular solution to the problem. For example, in designing a rotating cutting machine(my problem), a powerful but low 100 rpm motor is required. Since most AC motors are high rpm (3600 rpm), the analogous standard problem is how to reduce the speed of the motor. The analogous standard solution is a gear box or transmission. Then, a gear box can be designed with appropriate dimensions, weight, rpm, torque, etc. can be designed for my cutting needs.



Figure 1. General Problem Solving Model.


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