Fender Design - Wheel Arch Challenge

        Wheel Arch

        #Objective: To Calculate the wheel arc area and prove whether the car passes the European

         standerds or not.

        #Introduction: 

      .  The wheel arch is the semicircular part positioned above the wheel of a vehicle. 

      .  The Wheel arch design should be such that it covers the wheel and protects the people inside 

         the car cabin and also pedestrains from a splash of dust and water particles.                                                  

         #Representation chart for European Standers for Wheel arch design:

                 

       .  The Letter "L" here represent the clearance between the wheel edge and the wheel guard, which 

          should be greater than 10mm.

      .   Wheel guard requirement: The value of "A" must be greaterthan 5mm than Bb and Cc which are 

          at angles (degress) 30 and 50 respectively.                                                                                            

          #Observations: 

          Output extracted from Siemens NX

           

          I created this sketch on the wheel perimeter's plan and projected sections Aa and Bb upwards 

          and Cc, Dd and Ee downwords on the arch to measure the Wheel arch area and values for 

         clearance L, and Wheel guard clearance "a".

         l) Determining the Fender's Wheel Arch Area:

          

          The area of Wheel Arch is 24432.9334 sq.mm.

         ll) Determining the value of clearance "L".

         1) For Section Aa, L=9.9490mm.

         

        2) For Section Bb, L=10mm

         

         3) For section Cc, L=-0.104198mm

         

        4) For section Dd, L=-2.8873mm.

         

         5) Form section Ee, L=-5.9906mm.

         

        #Observation table: The threshold value for L is 10mm.                                                                                       

         Section                                          Clearance(mm)                                     Remarks

         Aa                                                  9.9490                                                  Failed

         Bb                                                  10                                                        Passed

         Cc                                                  -0.104198                                             Failed

         Dd                                                 -2.8873                                                 Failed

         Ee                                                  -5.9906                                                 Passed      

         Thus from the above table, we conclude that the Fender couldn't pass the European standards. 

         lll) Determining the Value of Wheel guard clearance "a".

         1. For section Bb, a=48.4813mm.

         Section Cc, a=44.6067mm

                      

         The threshold value for "a" is 5mm                                                                                                       

         The above data collected for Wheel guard clearance from sctions Bb at 30 degrees and Cc at 50

         degrees and from the vertical axis has passed the European Standerds.                                                 

         #Result: After Analysing overall data, we conclude that the car doesn't pass the European 

         standards.