A Simulation Analysis of the Load-Bearing Performance of Large-Sized Non-Standard Disc Springs
Taking the large-scale non-standard disc springs in a hammer rapping system as the research object,a research has been carried out on its response characteristics under different loads.An analysis has been made of the load deformation and load stress states of standard disc springs and large-sized non-standard disc springs respectively by using theoretical and simulation methods,followed by a study on the response characteristics of heavy-duty non-standard disc springs in the coupled state with simulation analysis methods adopted.The research results show that for large deformation conditions,the finite element method can better accurately describe the load-bearing performance of large-sized non-standard disc springs.When the load of large non-standard disc spring is less than the rated load,its load-deformation is characterized with linear features;when the load exceeds the rated load,the load-deformation is characterized with a nonlinear features.The analysis suggests that the theoretical calculation method for the load and deformation of the disc spring is applicable to the small deformation state of the structure.With the load exceeding the rated load,the deformation of the disc spring tends to be large,and the linear elastic theory for small deformation is no longer applicable to large load conditions.As the load increases,the contact state of the disc spring contact surface in mating state will undergo a sudden change,from surface-to-surface contact to line-to-surface contact.The change in contact state will cause changes in the local stress of the disc spring,thus affecting the safe use of the disc springs.
large-sized non-standard disc springload-deformationload-stressfinite element analysis
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