Nonlinear Dynamic Response Analysis of Cylindrical Roller Bearings Due to Unbalance

2019 ◽  
pp. 815-824
Author(s):  
Patra Pravajyoti ◽  
Saran V. Huzur ◽  
Suraj Prakash Harsha
Keyword(s):  
Dynamic Response ◽  
Nonlinear Dynamic ◽  
Response Analysis ◽  
Nonlinear Dynamic Response ◽  
Dynamic Response Analysis ◽  
Roller Bearings ◽  
Cylindrical Roller

Dynamic Response Analysis of Super-Long Hybrid Jib Structure under Impact Load

2014 ◽  
Vol 900 ◽  
pp. 746-752
Author(s):  
Qing Dong ◽  
Ge Ning Xu ◽  
Ming Liang Yang ◽  
Hui Li Ren ◽  
Bin Zhang
Keyword(s):  
Dynamic Response ◽  
Dynamic Load ◽  
Nonlinear Dynamic ◽  
Impact Load ◽  
Response Analysis ◽  
Nonlinear Dynamic Response ◽  
Dynamic Response Analysis ◽  
Linear Dynamic ◽  
Linear And Nonlinear ◽  
Jib Structure

For the vibration of the super-long hybrid jib structure of hundreds of meters level elevating platform fire truck under water cannon impact load, linear dynamic response and nonlinear dynamic response methods were used to analyze the characteristics of the structure in the conditions of the large deformation of the structure, geometry, contact, material nonlinear and coupling. Through analyzing linear and nonlinear dynamic response results about peaks, steady-state values, amplitudes and dynamic load coefficients, the more scientific and practical method was given. The results provide scientific data for active vibration control and track control, and lay the foundation for achieving stable-work and pinpoint of the elevating platform. The results shows that dynamic load coefficients of each part of the super-long hybrid jib structure are not identical. The dynamic load coefficient of where lifting load is smaller and support part is larger. The larger gap between linear and nonlinear dynamic response results shows that linear dynamic response analysis should be taken as an estimation method, but nonlinear response analysis is more scientific and applied.

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