2Liu YC.Optimum design of straightthin walled box section beamsfor crashworthiness analysisEJ].Finite Elements in Analysis andDesign, 2008 ( 44 ) : 139—147.
3PattenWN. New life for the WalnutCreek Bridge via semi—activevibration control[J].Newsletterof the International Associationgfor Structural Control, 2012(01): 4—5.