Rolim, A., Camargo, F., Boczko, M., and Osti, R., "Bumper on Striker: Improve Customer Perception Regarding Door Closing Sound Quality," SAE Technical Paper 2017-36-0327, 2017.
Did you had opportunity to hear any unpleasant noise when closing some vehicle door? In some cases reminds a metallic touch condition, in other cases reminds several components loose inside the door. The fact is that this kind of noise is definitely unpleasant to the human ears. The good news is that this undesirable condition can be solved easily through of add a soft bumper in the striker; however, needs to pay attention in the material properties and tolerance stack-up conditions to avoid generate side effect, like as high door closing efforts, break parts, lose parts, etc.