He was released from his signing with Iowa State.
Hansen ran for 952 yards in the 2025 season.
Shanahan Jr. will follow former offensive line coach Phil Trautwein to Gainesville.
RIT goalie Jakub Krbecek blanked the Nittany Lions in his 44-save shutout performance.
Penn State has now lost at The Palestra two years in a row.
The Nittany Lions committed nine penalties and gave up three power play goals.