模態分析的時候，出現了這個問題：The detected initial penetration/gap is relatively large for certain contact pairs. This may produce inaccurate results for Bonded and No Separation contacts using formulation other than MPC. This large penetration/gap can be identified by generating the initial contact results.

我更改了接觸設置還是不行，請問這是為什么呀，需要怎么更改？