Study on the Dynamic Excitation of the Star Gearing

2011 ◽  
Vol 86 ◽  
pp. 116-119
Author(s):  
Li Dong Jiang ◽  
Bao Xing Liu ◽  
Zhen Rong Zhu ◽  
Ying Li Chen
Keyword(s):  
Dynamic Response ◽  
Coupled Model ◽  
Transmission Error ◽  
Response Analysis ◽  
Dynamic Force ◽  
Dynamic Response Analysis ◽  
Meshing Stiffness ◽  
Dynamic Excitation ◽  
Dynamic Meshing

Study on the dynamic excitation is the basis of dynamic response analysis of gearbox. In the paper, the dynamic coupled model of the star gearing was established. By analyzing the casing substructure and extracting the coherency nodes, the gearing and casing was coupled. On the basis of analyzing dynamic meshing stiffness and transmission error, the dynamic meshing force of the star gearing was analyzed and calculated. By converting the dynamic meshing force, the dynamic force on the bearing was obtained. The dynamic excitation for dynamic response analysis of casing was achieved by applying the load on the coherency nodes. The method used in the paper has provided proper dynamic excitation for the dynamic response analysis of casing.

scholarly journals Dynamic Response Analysis of Spur Gear System with Backlash

2021 ◽  
Vol 276 ◽  
pp. 01012
Author(s):  
Chao Li ◽  
Jigang Wang
Keyword(s):  
Dynamic Response ◽  
Dynamic Model ◽  
Transmission Error ◽  
Spur Gear ◽  
Gear System ◽  
Response Analysis ◽  
Response Curves ◽  
Nonlinear Dynamic Response ◽  
Dynamic Response Analysis ◽  
Return Difference

There are few studies on space-driven gear systems in the existing literature. In this paper, a spacedriven two-stage spur gear system is taken as the research object, and a 10 DOF dynamic model is established. A nonlinear dynamic response analysis was performed. The backlash was introduced into the dynamic model, and the time-varying stiffness was corrected to make the theoretical model closer to reality. By comparing two kinds of dynamic response curves with and without return difference, it was illustrated that the influence of return difference on dynamic transmission error in a gear system. The results obtained in this paper provide a reference and basis for subsequent research.

scholarly journals Seismic performance of a high-rise residential building model in Purwokerto, Indonesia

2018 ◽  
Vol 192 ◽  
pp. 02002 ◽  
Author(s):  
Yanuar Haryanto ◽  
Buntara Sthenly Gan ◽  
Nanang Gunawan Wariyatno ◽  
Eva Wahyu Indriyati
Keyword(s):  
Dynamic Response ◽  
Static Analysis ◽  
Pushover Analysis ◽  
Residential Building ◽  
Response Analysis ◽  
Dynamic Response Analysis ◽  
Building Model ◽  
High Rise ◽  
Drift Ratio ◽  
Linear Static Analysis

We evaluated the performance of a high-rise residential building model in Purwokerto, Indonesia due to the seismic load. The evaluation was performed based on seismic loads given in the 2002 and 2012 Indonesian National Standard (SNI) using linear static analysis, dynamic response analysis and pushover analysis. Based on the linear static analysis, the drift ratio decreased by an average of 34.42 and 32.61% for the X and Y directions respectively. Meanwhile, based on the dynamic response analysis, the drift ratio also decreased by an average of 30.74 and 27.33% for the X and Y directions respectively. In addition, the pushover analysis indicates that the performance of this high-rise residential building model is still at Immediate Occupancy (IO) level. The post-earthquake damage state in which the building remains safe to occupy, essentially retaining the pre-earthquake design strength and stiffness of the structure. The risk of life-threatening injury as a result of structural damage is very low. Although some minor structural repairs may be appropriate, these would generally not be required prior to re-occupancy.

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