my @gravity_hashrefs = grep {$_->{CHIPS_PART_NAME}=~/gravity/i} @goodRefDes;

##</code><code>##

grep { if ($_->{CHIPS_PART_NAME}=~/gravity/i)
       {
          print Dumper $_;
          1;
       }
       else 
       { 
          0;
       }          
     } @goodRefDes;