Time-domain Galerkin method for dynamic load identification

2015 ◽  
Vol 105 (8) ◽  
pp. 620-640 ◽  
Author(s):  
Jie Liu ◽  
Xianghua Meng ◽  
Chao Jiang ◽  
Xu Han ◽  
Dequan Zhang
Keyword(s):  
Galerkin Method ◽  
Time Domain ◽  
Dynamic Load ◽  
Load Identification

Time Domain Identification of Distributed Dynamic Load of Rotating Timoshenko Beam Based on Orthogonal Polynomial

2010 ◽  
Vol 29-32 ◽  
pp. 448-453
Author(s):  
Deng Jun ◽  
Fang Zhang ◽  
Guo Ping Chen
Keyword(s):  
Timoshenko Beam ◽  
Time Domain ◽  
Dynamic Load ◽  
Element Model ◽  
Load Identification ◽  
Continuous Beam ◽  
Domain Identification ◽  
Rotating Timoshenko Beam ◽  
Identification Theory ◽  
The Finite Element Model

Based on the theory of two-dimensional (2-D) orthogonal polynomials, the function of dynamic load is fit by using the primary functions sequence. The identification of the distributed dynamic load can be transformed into the solution of the fitting coefficients. For the finite element model of the rotating Timoshenko beam, the unknown distributed force is identified by the load identification theory of the continuous beam in time domain. Numerical simulation shows that the method is precise as long as enough data of feedback points are collected; and it is simple and effective for engineering applications.

Plumpness Analysis of Indicator Diagram for Vehicle Damper

2013 ◽  
Vol 415 ◽  
pp. 582-585
Author(s):  
Xing Xu ◽  
Zhen Cui ◽  
Jin Chao Zhang
Keyword(s):  
Frequency Domain ◽  
Time Domain ◽  
Dynamic Load ◽  
Performance Indicators ◽  
Load Distribution ◽  
The Body ◽  
Quantitative Index ◽  
Indicator Diagram ◽  
Vehicle Demand ◽  
Mathematical Relationships

According to the indicator diagram of damper, the indicator diagram plumpness was proposed as a quantitative index, and its mathematical relationships with the sprung mass acceleration, suspension dynamic travel and tire dynamic load were built. Moreover, the influence of the total area on suspension characteristics was analyzed in time domain and frequency domain. The results show that, the increase of the indicator diagram plumpness can effectively restrain the variation of suspension dynamic travel and tire dynamic load, meanwhile, the body acceleration will be enlarged. Excessive indicator diagram plumpness also affects the dynamic tire load distribution in frequency domain, and it will decrease the driving security. Therefore, it should be reasonably selected from the performance indicators, which is based on the requirement of vehicle demand in the design process.

A novel approach for distributed dynamic load reconstruction by space–time domain decoupling

2015 ◽  
Vol 348 ◽  
pp. 137-148 ◽  
Author(s):  
Kun Li ◽  
Jie Liu ◽  
Xu Han ◽  
Xingsheng Sun ◽  
Chao Jiang
Keyword(s):  
Time Domain ◽  
Dynamic Load ◽  
Space Time ◽  
Novel Approach

An Algorithm of Dynamic Load Identification Based on FBG Sensor and Kalman Filter

2018 ◽  
Vol 38 (3) ◽  
pp. 0328012
Author(s):  
宋雪刚 Song Xuegang ◽  
刘鹏 Liu Peng ◽  
程竹明 Cheng Zhuming ◽  
魏真 Wei Zhen ◽  
喻俊松 Yu Junsong ◽  
...  
Keyword(s):  
Kalman Filter ◽  
Dynamic Load ◽  
Load Identification ◽  
Fbg Sensor
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