You are working with BEAM-elements. So all the endpoints of the BEAM-elements must be connected to eachother. Also all the bonding between the beam elements must be setup the right way.
Look at some tutorials on youtube to understand what to do, for example: An Introduction to Beam Analysis in SolidWorks Simulation - YouTube
And don't use soft-springs if you don't know what the do.
hello dear janko.
thanks for your attention.i see your help link and find my problem.