Real-Time Vehicle Inertial Parameters Estimation Based on a Simplified Half-Car Vertical Vibration Model

2018 ◽  
pp. 521-531
Author(s):  
Nguyen Tuan-Anh ◽  
Nguyen Cong Tuan
Keyword(s):  
Real Time ◽  
Vertical Vibration ◽  
Parameters Estimation ◽  
Inertial Parameters ◽  
Vibration Model

Real-time vision-based modal parameters estimation at 10000 fps

2012 ◽  
Author(s):  
Hua Yang ◽  
Idaku Ishii ◽  
Takeshi Takaki
Keyword(s):  
Real Time ◽  
Parameters Estimation ◽  
Modal Parameters

scholarly journals Real Time Estimation of Modal Parameters and Their Quality Assessment

2008 ◽  
Vol 15 (3-4) ◽  
pp. 299-306 ◽  
Author(s):  
Tadeusz Uhl ◽  
Maciej Petko ◽  
Grzegorz Karpiel ◽  
Andrzej Klepka
Keyword(s):  
Laboratory Test ◽  
Quality Assessment ◽  
Real Time ◽  
Time Estimation ◽  
Parameters Estimation ◽  
Modal Parameters ◽  
Recursive Method ◽  
Test Rig ◽  
Confidence Bounds ◽  
Real Time Estimation

In this paper the recursive method for modal parameters estimation is formulated and verified. Formulated algorithms are implemented in the FPGA electronic chip. As a result, the modal parameters and confidence bounds for the modal parameters are obtained in real time. The algorithms and their implementations are tested on laboratory test rig data and applied to – flight modal analysis of an airframe structure.

Fault-tolerant pose and inertial parameters estimation of an uncooperative spacecraft based on dual vector quaternions

2018 ◽  
Vol 233 (4) ◽  
pp. 1250-1269 ◽  
Author(s):  
Jianping Yuan ◽  
Xianghao Hou ◽  
Chong Sun ◽  
Yu Cheng
Keyword(s):  
Kalman Filter ◽  
Extended Kalman Filter ◽  
Formation Flying ◽  
Fault Tolerant ◽  
Estimation Algorithm ◽  
Parameters Estimation ◽  
Small Satellites ◽  
Dual Vector ◽  
Inertial Parameters ◽  
Space Target

Estimating the parameters of an unknown free-floating tumbling spacecraft is an essential task for the on-orbit servicing missions. This paper proposes a dual vector quaternion based fault-tolerant pose and inertial parameters estimation algorithm of an uncooperative space target using two formation flying small satellites. Firstly, by utilizing the dual vector quaternions to model the kinematics and dynamics of the system, not only the representation of the model is concise and compacted, but also the translational and rotational coupled effects are considered. By using this modeling technique along with the measurements from the on-board vision-based sensors, a dual vector quaternion based extended Kalman filter for each of the two small satellites is designed. Secondly, both of the estimations from each small satellite will be used as inputs of the fault-tolerant algorithm. This algorithm is based on the fault-tolerant federal extended Kalman filter strategy to overcome the estimation errors caused by the faulty measurements, the unknown space environment and the computing errors by setting the appropriate ratios of the two estimations from the first step dual vector quaternions extended Kalman filter. Together with the first and second steps, a novel fault-tolerant dual vector quaternions federal extended Kalman filter using two formation flying small satellites is proposed by this paper to estimate the pose and inertial parameters of a free-floating tumbling space target. By utilizing the estimation algorithm, a good prior knowledge of the unknown space target can be achieved. Finally, the proposed dual vector quaternion federal extended Kalman filter is validated by mathematical simulations to show its robust performances.

Comparison of Vertical Model and Spatial Model for Vehicle-Track-Bridge Coupling Vibration System

2011 ◽  
Vol 243-249 ◽  
pp. 4307-4310
Author(s):  
Yuan Zhang ◽  
Wei Lin ◽  
Ze Ming Wang
Keyword(s):  
Vertical Vibration ◽  
Coupling Vibration ◽  
Spatial Coupling ◽  
Advantages And Disadvantages ◽  
Vibration Model ◽  
Spectrum Density ◽  
Exciting Source ◽  
Vibration Responses ◽  
Track Bridge ◽  
Bridge System

In this paper, models for vertical and spatial coupling vibration of vehicle-track-bridge system are established separately. The track vertical irregularity sample in time domain is established by power spectrum density and taken as the exciting source to analyze the coupling vibration of vehicle-track-bridge system of two models. The advantages and disadvantages and applicability of the vertical vibration model and the spatial vibration model are analyzed by comparing the vertical vibration responses of the two models under excitation with same level of track vertical irregularity.

Vibration model of a powertrain for real-time environment

ATZ worldwide ◽  
2007 ◽  
Vol 109 (10) ◽  
pp. 17-20
Author(s):  
Dusko Prezel ◽  
Hans H. Priebsch ◽  
Matthias Dank ◽  
Gerhard Putz ◽  
Klaus Meitz
Keyword(s):  
Real Time ◽  
Vibration Model

scholarly journals Adaptive pose and inertial parameters estimation of free-floating tumbling space objects using dual vector quaternions

2017 ◽  
Vol 9 (10) ◽  
pp. 168781401771421 ◽  
Author(s):  
Xianghao Hou ◽  
Chuan Ma ◽  
Zheng Wang ◽  
Jianping Yuan
Keyword(s):  
Parameters Estimation ◽  
Dual Vector ◽  
Inertial Parameters ◽  
Space Objects

scholarly journals An Effective Approach for Real-Time Parameters Estimation of Doubly-Fed Induction Machine Using Forgetting Factor RLS Algorithm

2020 ◽  
Vol 22 (2) ◽  
pp. 169-177 ◽  
Author(s):  
Seif-El Islam Chelli ◽  
Ahmed Nemmour ◽  
Mourad Ahmed ◽  
Abdelfettah Boussaid ◽  
Abdelmalek Khezzar
Keyword(s):  
Real Time ◽  
Induction Machine ◽  
Parameters Estimation ◽  
Forgetting Factor ◽  
Rls Algorithm ◽  
Doubly Fed Induction Machine ◽  
Time Parameters ◽  
Doubly Fed
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