A simple Problem...but not able to think through TRIZ Principles

Comment

Comment by Prakasan K on March 8, 2012 at 11:40pm

Hi Tushar,

Thanks for posting this interesting problem. With the basic physics I know, I assume the solution you mentioned here would solve the problem, I hope our TRIZ experts registered here may like to show us more accurate solutions;

I wanted to experiment with the following approaches. There are two ways I will consider the problem statement the way you have depicted

- Increasing the load capacity without increasing the material and altering the direction is the final problem (or the answer to the last why if you had used 5 why's)

- The above said problem is what we are starting with

- Going with the first assumption, we shall try to map this to the contradiction matrix (The contradiction you mentioned is the right fit, am just trying to put that in layman's term). What we want to improve here is ability of the hanging bar to hold more weight (load) (assuming the bar is not fixed, but there is an oscillating movement), but if we do so, what will get worsen is the size of the hanging bar will increase, along with the supporting structure will be complex.

What would happen if we attach more weight (Area/Volume) to the as it is system (hanging bar). The chances are that the material itself will break, or the support system will collapse, or the accuracy of hanging bar (assume it is a precision equipment) holding the object will deteriorate etc. If we go and look at the TRIZ contradiction matrix, the following Improvement parameters may be applied

- Weight/Area/Volume of moving/stationery object (assuming the object is the load you are adding)

What could go wrong if we do that without increasing the size of the bar

- strength(of the hanging bar/support system?)

- Reliability

- Measurement accuracy (assume attaching more weight elongates the material, which complicates the precision fitting etc)

Using more than one contradiction will give you several principles (also means ability to generate more, interesting solutions), but you could find a set of most used principles among these. 

I'm sure one of the principle would be suggesting the solution you have already mentioned.

For the scenario two of the assumption - I will not even go to the contradiction, but to start with the IFR (Ideal Final Result) to redefine the problem, and once I know the new problem see if there is any resources around me to solve that.

The IFR may be applied like this - what is the Ideal Final Result for me in this situation. The ideal is that I don't want to have this hanging bar at all, or the load I'm supposed to attach to this bar is self hanging. Then working backward, the weight of the object hanging itself is adding the strength of the bar so on and so forth..

Would love to hear your thoughts and any ideas..

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