scholarly journals Design and Analysis of an Interconnected Suspension for a Small Off-Road Vehicle

2017 ◽  
Vol 64 (1) ◽  
pp. 5-21
Author(s):  
Bruce P. Minaker ◽  
Zheng Yao
Keyword(s):  
Dynamic Analysis ◽  
Mechanical Design ◽  
Ride Quality ◽  
Road Vehicle ◽  
Performance Improvements ◽  
Multibody Dynamic ◽  
Control Research ◽  
Dynamics And Control ◽  
The University ◽  
And Control

Abstract The paper describes the design and multibody dynamic analysis of a mechanically interconnected suspension, as applied to a small off-road vehicle. Interconnected suspensions use some sort of connection between the axles of a vehicle in order improve ride quality or vehicle handling. In principle, the connection may be hydraulic, pneumatic, or mechanical, but for installation in a typical passenger car, a mechanical connection would likely be impractical due to weight and complexity. In this paper, the vehicle in question is the University of Windsor SAE Baja off-road competition vehicle, and novel mechanical design is proposed. A multibody dynamic analysis is performed on the proposed design using the EoM open source multibody software developed by the University of Windsor Vehicle Dynamics and Control research group in order to assess any potential performance improvements.

scholarly journals Connected and Automated Vehicles

2016 ◽  
Vol 138 (12) ◽  
pp. S5-S11 ◽  
Author(s):  
Huei Peng
Keyword(s):  
Extended Period ◽  
University Of Michigan ◽  
Automated Vehicles ◽  
Operational Test ◽  
Field Operational Test ◽  
Dynamics And Control ◽  
Private Research ◽  
Vehicle Technologies ◽  
The University ◽  
And Control

This article focuses on dynamics and control of connected and automated vehicles. The complexity and difficulty can grow significantly from low automation levels to higher levels. The paper briefly highlights three challenges, i.e., sensing, localization, and perception. The Mobility Transformation Center (MTC) is a public/private research and development partnership led by the University of Michigan. MTC aims to develop the foundations for a viable ecosystem of CAVs. A popular alternative to test high-automation-level AVs is the Naturalistic-Field Operational Test (N-FOT). In an N-FOT, a number of equipped vehicles are tested under naturalistic driving conditions over an extended period. In the near future, connected and automated vehicle technologies are expected to be deployed rapidly. While there has been a lot of research in, and attention to, the field of sensing, localization, and perception, this paper aims to point out a few areas related to the field of dynamics and control that are opportunities for further research.

Dynamic Analysis and Control of Multi-Body Manufacturing Systems Based on Newton–Euler Formulation

2015 ◽  
Vol 12 (02) ◽  
pp. 1550007 ◽  
Author(s):  
Yunn-Lin Hwang ◽  
Van-Thuan Truong
Keyword(s):  
Dynamic Analysis ◽  
Manufacturing Systems ◽  
Manufacturing System ◽  
Practical Applications ◽  
Dynamics And Control ◽  
Dynamical Parameters ◽  
Reaction Forces ◽  
Constrained Equations ◽  
Multi Body ◽  
And Control

This paper presents the numerical dynamic analysis and control of multi-body manufacturing systems based on Newton–Euler formulation. The models of systems built with dynamical parameters are executed. The research uses Newton–Euler formulation application in mechanics calculations, where relations between contiguous bodies through joints as well as their constrained equations are considered. The kinematics and dynamics are both analyzed and acquired by practical applications. Numerical tools help to determine all dynamic characteristics of multi-body manufacturing systems such as displacements, velocities, accelerations and reaction forces of bodies and joints. Using the acquisition, the dynamic approach of multi-body manufacturing systems is developed then whole fundamentals for controller tuning are obtained. It leads to an effective solution for mechanical manufacturing system investigation. Numerical examples are also presented as the illustrations in this paper. The numerical results imply that numerical equations based on Newton–Euler algorithm are valuable in multi-body manufacturing system. It is an effective approach for solving whole mechatronic manufacturing systems including structures, kinematics, dynamics and control.

scholarly journals ADAMS-MATLAB co-simulation for kinematics, dynamics, and control of the Stewart–Gough platform

2017 ◽  
Vol 14 (4) ◽  
pp. 172988141771982 ◽  
Author(s):  
Deira Sosa-Méndez ◽  
Esther Lugo-González ◽  
Manuel Arias-Montiel ◽  
Rafael A García-García
Keyword(s):  
Dynamic Analysis ◽  
Motion Control ◽  
Multibody Systems ◽  
Parallel Robot ◽  
Computational Approach ◽  
Systems Software ◽  
Programming Effort ◽  
Dynamics And Control ◽  
Stewart Gough Platform ◽  
And Control

The mechanical structure known as Stewart–Gough platform is the most representative parallel robot with a wide variety of applications in many areas. Despite the intensive study on the kinematics, dynamics, and control of the Stewart–Gough platform, many details about these topics are still a challenging problem. In this work, the use of automatic dynamic analysis of multibody systems software for the kinematic and dynamic analysis of the Stewart–Gough platform is proposed. Moreover, a co-simulation automatic dynamic analysis of multibody systems (ADAMS)-MATLAB is developed for motion control of the Stewart–Gough platform end-effector. This computational approach allows the numerical solution for the kinematics, dynamics, and motion control of the Stewart–Gough platform and a considerable reduction on the analytical and programming effort. The obtained results in the three topics (kinematics, dynamics, and control) are validated by comparing them with analytical results reported in the literature. This kind of computational approach allows for the creation of virtual prototypes and saves time and resources in the development of Stewart–Gough platform-based robots applications.

Colleen McBride, PhD

2004 ◽  
Vol 52 (8) ◽  
pp. 489-491
Keyword(s):  
Behavior Change ◽  
Research Program ◽  
Well Being ◽  
University Of Minnesota ◽  
Behavior Change Interventions ◽  
National Human ◽  
Control Research ◽  
Genetic Susceptibility Testing ◽  
The University ◽  
And Control

Colleen McBride, PhD, is a senior investigator and chief of the newly formed Social and Behavioral Research Branch (SBRB) of the National Human Genome Research Institute (NHGRI) at the National Institutes of Health. The SBRB is an intramural research program with the mission of conducting a broad spectrum of research to understand how to best apply genomic discoveries to improve health and well-being. Before coming to NHGRI, Dr. McBride spent 8 years leading Duke University's Cancer Prevention, Detection and Control Research Program. Dr. McBride is a behavioral epidemiologist and is nationally recognized for her research in the development and evaluation of self-directed behavior change interventions. She has developed and evaluated large randomized trials; a number of proactively delivered behavior change interventions for smoking, diet, and physical activity; and motivational adjuncts, including genetic susceptibility testing.Dr. McBride received her doctorate in behavioral epidemiology from the University of Minnesota in 1990.

scholarly journals Stabilization of UAV using Delta Sigma Modulator based controller

2018 ◽  
Vol 7 (3.34) ◽  
pp. 198
Author(s):  
V Vinoth kumar ◽  
K Diwakar ◽  
E Balasubramanian
Keyword(s):  
Control Algorithm ◽  
Design Development ◽  
External Disturbances ◽  
Rotor Systems ◽  
Delta Sigma Modulator ◽  
Delta Sigma ◽  
Highly Nonlinear ◽  
Control Research ◽  
Dynamics And Control ◽  
And Control

The design development and control of Unmanned Aerial Vehicles (UAV’s) have stimulated great significance in the automatic control research for the past 2 decades.  In specific, Quad rotor systems are a promising platform in the area of Uthe AV research, due to its simple in construction, maintenance, ability to hover, and their vertical takeoff and landing (VTOL) capability. The dynamics and control of quad rotor are highly nonlinear and under actuated so it is considered as a test-rig to verify any new proposed nonlinear control algorithm. Different control algorithms were proposed and implemented to stabilize the UAV attitude, and altitude. Adaptive control and navigation algorithms also implemented in UAV platform to ensure the maneuvering against the internal and external disturbances. The proposed research paper explains the implementation of the developed digital control algorithm Delta-sigma modulatoan r (DSM) based controller for UAV to enhance the robustness.

From Research to Didactics: The Course of Dynamics and Control of Fluid Machines for Automation Engineering Students

2008 ◽  
Author(s):  
M. Venturini ◽  
M. Morini
Keyword(s):  
Dynamic Behavior ◽  
Engineering Students ◽  
Student Evaluation ◽  
Operating Conditions ◽  
Student Feedback ◽  
System Control ◽  
Control Logic ◽  
Dynamics And Control ◽  
The University ◽  
And Control

The paper deals with the course “Dynamics and Control of Fluid Machines”, which has been held at the Faculty of Engineering of the University of Ferrara (Italy) since the academic year 2002/2003 for the Second-Level Degree Course in Computer Sciences and Automation Engineering. The aim of the course is the study of fluid machines, by combining base knowledge with physical-mathematical analysis of the unsteady behavior and of off-design operating conditions. The first characteristic aspect of the course is the study of the dynamic behavior of fluid machines. The second relevant aspect is the analysis of system control. In this paper, course characteristics are presented and discussed. In particular, as a part of the final examination, students are asked to develop an individual project, whose results are also reported in this paper. The project consists of the simulation of the dynamic behavior of an industrial system for compressed air production by means of a multistage centrifugal compressor. Students are required to properly design the controller and to discuss the adopted control logic. Student feedback is evaluated by means of a survey conducted to evaluate the quality of the didactic activity. The analysis of student feedback reveals that student evaluation towards the course proves higher than the “average” evaluation for the didactic activity held at the University of Ferrara, at the Faculty of Engineering or within the same Degree Course.

scholarly journals A DYNAMIC ANALYSIS OF THE MICROSTRUCTURE OF MOVING AVERAGE RULES IN A DOUBLE AUCTION MARKET

2011 ◽  
Vol 16 (4) ◽  
pp. 556-575 ◽  
Author(s):  
Carl Chiarella ◽  
Xue-Zhong He ◽  
Paolo Pellizzari
Keyword(s):  
Dynamic Analysis ◽  
Moving Average ◽  
Double Auction ◽  
Volatility Clustering ◽  
Auction Market ◽  
Double Auctions ◽  
Continuous Double Auctions ◽  
Dynamics And Control ◽  
Microstructure Model ◽  
And Control

Inspired by the theoretically oriented dynamic analysis of moving average rules in the model of Chiarella, He, and Hommes (CHH) [Journal of Economic Dynamics and Control30 (2006), 1729—1753], this paper conducts a dynamic analysis of a more realistic microstructure model of continuous double auctions in which the probability of heterogeneous agents trading is determined by the rules of either fundamentalists mean-reverting to the fundamental or chartists choosing moving average rules based on their relative performance. With such a realistic market microstructure, the model is able not only to obtain the results of the CHH model but also to characterize most of the stylized facts including volatility clustering, insignificant autocorrelations (ACs) of returns, and significant slowly decaying ACs of the absolute returns. The results seem to suggest that a comprehensive explanation of several statistical properties of returns is possible in a framework where bothbehavioraltraits andrealistic microstructurehave a role.

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