US2007233665A1PendingUtilityA1

Systems and Methods for Selecting a Material That Best Matches a Desired Set of Properties

Assignee: GEN ELECTRICPriority: Oct 2, 2002Filed: Jun 7, 2007Published: Oct 4, 2007
Est. expiryOct 2, 2022(expired)· nominal 20-yr term from priority
Y10S707/99935G06F 16/334G06F 16/24578Y10S707/99933Y10S707/99936Y10S707/99934
28
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Claims

Abstract

Disclosed herein is a method for selecting a material that most closely matches a desired set of properties, the method comprising: obtaining at least one input parameter from a user; retrieving actual property values for at least one preliminary matching material from a global data repository; determining a match between each preliminary matching material matches and a desired set of property values; and outputting the results to the user.

Claims

exact text as granted — not AI-modified
1 . A method for selecting a material that most closely matches a desired set of properties, the method comprising: 
 obtaining at least one input parameter from a user;    retrieving actual property values for at least one preliminary matching material from a global data repository;    determining a match between each preliminary matching material matches and a desired set of property values; and    outputting the results to the user.    
     
     
         2 . The method of  claim 1 , wherein the determining step comprises: 
 calculating an index value for each actual property value of each preliminary matching material;    scoring each property value to create a scored property value;    weighting each scored property value by talking a priority value for each property into account to create a weighted scored property value; and    calculating an overall match score for each preliminary matching material.    
     
     
         3 . The method of  claim 2 , wherein at least one input parameter obtained from the user is a minimum acceptable property value or a maximum acceptable property value for a property, the index value is calculated using the formula:  
       
         
           
             
               
                 Index 
                 ⁢ 
                 
                     
                 
                 ⁢ 
                 value 
               
               = 
               
                 
                   Actual 
                   ⁢ 
                   
                       
                   
                   ⁢ 
                   property 
                   ⁢ 
                   
                       
                   
                   ⁢ 
                   value 
                 
                 
                   Desired 
                   ⁢ 
                   
                       
                   
                   ⁢ 
                   property 
                   ⁢ 
                   
                       
                   
                   ⁢ 
                   value 
                 
               
             
           
         
       
     
     
         4 . The method of  claim 2 , wherein at least one input parameter obtained from the user is a range of acceptable property values for a property, the index value is calculated using the formula:  
       
         
           
             
               
                 Index 
                 ⁢ 
                 
                     
                 
                 ⁢ 
                 
                   value 
                   range 
                 
               
               = 
               
                 
                   
                     Actual 
                     ⁢ 
                     
                         
                     
                     ⁢ 
                     property 
                     ⁢ 
                     
                         
                     
                     ⁢ 
                     value 
                   
                   - 
                   
                     
                       ( 
                       
                         LOW 
                         + 
                         HIGH 
                       
                       ) 
                     
                     / 
                     2 
                   
                 
                 
                   HIGH 
                   - 
                   LOW 
                 
               
             
           
         
       
       wherein LOW is the minimum value of the acceptable range and HIGH is the maximum value of the acceptable range.  
     
     
         5 . The method of  claim 2 , wherein at least one input parameter obtained from the user is a minimum acceptable property value for a property, the scored property value is calculated using the fuzzy membership function:  
       
         
           
             
               
                 Scored 
                 ⁢ 
                 
                     
                 
                 ⁢ 
                 property 
                 ⁢ 
                 
                     
                 
                 ⁢ 
                 value 
               
               = 
               
                 1 
                 
                   
                     
                       
                         1 
                         + 
                         exp 
                       
                     
                   
                   
                     
                       
                         [ 
                         
                           
                             - 
                             Slope 
                           
                           ⁢ 
                           
                               
                           
                           ⁢ 
                           
                             ( 
                             
                               
                                 Index 
                                 ⁢ 
                                 
                                     
                                 
                                 ⁢ 
                                 value 
                               
                               - 
                               Crossover 
                             
                             ) 
                           
                         
                         ] 
                       
                     
                   
                 
               
             
           
         
       
       wherein Slope=15 and Crossover=0.95.  
     
     
         6 . The method of  claim 2 , wherein at least one input parameter obtained from the user is a maximum acceptable property value for a property, the scored property value is calculated using the fuzzy membership function:  
       
         
           
             
               
                 
                   
                     Scored 
                   
                 
                 
                   
                     
                       property 
                       ⁢ 
                       
                           
                       
                       ⁢ 
                       value 
                     
                   
                 
               
               = 
               
                 1 
                 
                   1 
                   + 
                   
                     exp 
                     ⁡ 
                     
                       [ 
                       
                         
                           - 
                           Slope 
                         
                         ⁢ 
                         
                             
                         
                         ⁢ 
                         
                           ( 
                           
                             
                               Index 
                               ⁢ 
                               
                                   
                               
                               ⁢ 
                               value 
                             
                             - 
                             Crossover 
                           
                           ) 
                         
                       
                       ] 
                     
                   
                 
               
             
           
         
       
       wherein Slope=−15 and Crossover=1.05.  
     
     
         7 . The method of  claim 2 , wherein at least one input parameter obtained from the user is an acceptable point value for a property, and the desired property value for that property equals zero (0), the scored property value is one (1).  
     
     
         8 . The method of  claim 2 , wherein at least one input parameter obtained from the user is an acceptable point value for a property, and the desired property value for that property does not equal zero (0), the scored property value is zero (0).  
     
     
         9 . The method of  claim 2 , wherein at least one input parameter obtained from the user is an acceptable point value for a property, and:  
         Actual property value<DPV*0.9  
       wherein DPV=desired property value, the scored property value is zero (0).  
     
     
         10 . The method of  claim 2 , wherein at least one input parameter obtained from the user is an acceptable point value for a property, and:  
         DPV*0.9.ltoreq.Actual property value<DPV  
       the scored property value is calculated using the fuzzy membership function:  
       
         
           
             
               
                 Scored 
                 ⁢ 
                 
                     
                 
                 ⁢ 
                 Property 
                 ⁢ 
                 
                     
                 
                 ⁢ 
                 Value 
               
               = 
               
                 
                   
                     ( 
                     
                       DPV 
                       * 
                       0.1 
                     
                     ) 
                   
                   - 
                   DPV 
                   + 
                   APV 
                 
                 
                   ( 
                   
                     DPV 
                     * 
                     0.1 
                   
                   ) 
                 
               
             
           
         
       
       wherein DPV=desired property value and APV=actual property value.  
     
     
         11 . The method of  claim 2 , wherein at least one input parameter obtained from the user is an acceptable point value for a property, and:  
         Actual property value=DPV  
       wherein DPV=desired property value, the scored property value is one (1).  
     
     
         12 . The method of  claim 2 , wherein at least one input parameter obtained from the user is an acceptable point value for a property, and:  
         DPV<Actual property value.ltoreq.DPV* 1.1  
       the scored property value is calculated using the fuzzy membership function:  
       
         
           
             
               
                 Scored 
                 ⁢ 
                 
                     
                 
                 ⁢ 
                 Property 
                 ⁢ 
                 
                     
                 
                 ⁢ 
                 Value 
               
               = 
               
                 
                   
                     ( 
                     
                       DPV 
                       * 
                       0.1 
                     
                     ) 
                   
                   + 
                   DPV 
                   - 
                   APV 
                 
                 
                   ( 
                   
                     DPV 
                     * 
                     0.1 
                   
                   ) 
                 
               
             
           
         
       
       wherein DPV=desired property value and APV=actual property value.  
     
     
         13 . The method of  claim 2 , wherein at least one input parameter obtained from the user is an acceptable point value for a property, and:  
         Actual property value>DPV* 1.1  
       wherein DPV=desired property value, the scored property value is zero (0).  
     
     
         14 . The method of  claim 2 , wherein at least one input parameter obtained from the user is a range of acceptable property values for a property, and the index value for that property is less than −1, the scored property value equals zero (0).  
     
     
         15 . The method of  claim 2 , wherein at least one input parameter obtained from the user is a range of acceptable property values for a property, and:  
         −1.ltoreq.Index value<−0.5  
       the scored property value is calculated using the fuzzy membership function:  
         Scored property value=2(1.0+Index value).  
     
     
         16 . The method of  claim 2 , wherein at least one input parameter obtained from the user is a range of acceptable property values for a property, and:  
         −0.5.ltoreq.Index value<0.5  
       the scored property value is one (1).  
     
     
         17 . The method of  claim 2 , wherein at least one input parameter obtained from the user is a range of acceptable property values for a property, and:  
         0.5.ltoreq.Index value<1  
       the scored property is calculated using the fuzzy membership function:  
         Scored property value=2(1.0-Index value).  
     
     
         18 . The method of  claim 2 , wherein at least one input parameter obtained from the user is a range of acceptable property values for a property, and the index value for that property is greater than one (1), the scored property value is zero (0).  
     
     
         19 . The method of  claim 2 , wherein the weighted scored property value is calculated using the formula:  
         Weighted scored property value=Scored property value * Priority value  
     
     
         20 . The method of  claim 19 , wherein a high priority exists for a property, a priority value of 4 is assigned to that property, a medium priority exists for a property, a priority value of 2 is assigned to that property, and a low priority exists for a property, a priority value of 1 is assigned to that property.  
     
     
         21 . The method of  claim 2 , wherein the overall match score is calculated using the formula:  
       
         
           
             
               
                 Overall 
                 ⁢ 
                 
                     
                 
                 ⁢ 
                 Match 
                 ⁢ 
                 
                     
                 
                 ⁢ 
                 Score 
               
               = 
               
                 
                   
                     
                       
                         Sum 
                         ⁢ 
                         
                             
                         
                         ⁢ 
                         of 
                         ⁢ 
                         
                             
                         
                         ⁢ 
                         all 
                         ⁢ 
                         
                             
                         
                         ⁢ 
                         weighted 
                       
                     
                   
                   
                     
                       
                         score 
                         ⁢ 
                         
                             
                         
                         ⁢ 
                         property 
                         ⁢ 
                         
                             
                         
                         ⁢ 
                         values 
                       
                     
                   
                 
                 
                   
                     S 
                     ⁢ 
                     um 
                   
                   ⁢ 
                   
                       
                   
                   ⁢ 
                   of 
                   ⁢ 
                   
                       
                   
                   ⁢ 
                   all 
                   ⁢ 
                   
                       
                   
                   ⁢ 
                   priority 
                   ⁢ 
                   
                       
                   
                   ⁢ 
                   values 
                 
               
             
           
         
       
     
     
         22 . The method of  claim 2 , wherein each preliminary matching material comprises an engineering thermoplastic.  
     
     
         23 . A system for selecting a material that most closely matches a desired set of properties, the system comprising: 
 a means for obtaining at least one input parameter from a user;    a means for retrieving actual property values for at least one preliminary matching material from a global data repository;    a material selection algorithm operable for determining a match between each preliminary matching material and a desired set of property values; and    a means for outputting the results to the user.    
     
     
         24 . The system of  claim 23 , wherein the material selection algorithm is further operable for: 
 calculating an index value for each actual property value of each preliminary matching material;    scoring each property value to create a scored property value;    weighting each scored property value by taking a priority value for each property into account to create a weighted scored property value; and    calculating an overall match score for each preliminary matching material.

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