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Proceedings ArticleDOI

Development of a Scaled Prototype of a Single Unit Heavy Commercial Road Vehicle for Detection of Untripped Rollover

10 Jan 2017-
About: The article was published on 2017-01-10. The article focuses on the topic(s): Rollover.
Topics: Rollover (61%)
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12 Apr 1994-
Abstract: A text which is aimed at tyre and vehicle manufacturers. Topics discussed in the book are the pneumatic tyre, axis systems and equations of motion, the control and stability of basic rigid vehicles, suspension characteristics and control and stability of articulated vehicles.

257 citations

05 Apr 2007-
Abstract: VIBRATION DAMPING Vibration Damping Clarence W. de Silva Introduction Types of Damping Representation of Damping in Vibration Analysis Measurement of Damping Interface Damping DAMPING THEORY Randall D. Peters Preface Introduction Background Hysteresis - More Details Damping Models Measurements of Damping Hysteretic Damping Failure of the Common Theory Air Influence Noise and Damping Transform Methods Hysteretic Damping Internal Friction Mathematical Tricks - Linear Damping Approximations Internal Friction Physics Zener Model Toward a Universal Model of Damping Nonlinearity Concluding Remark EXPERIMENTAL TECHNIQUES IN DAMPING Randall D. Peters Electronic Considerations Data Processing Sensor Choices Damping Examples Driven Oscillators with Damping Oscillator with Multiple Nonlinearities Multiple Modes of Vibration Internal Friction as Source of Mechanical Noise Viscous Damping - Need for Caution Air Influence STRUCTURE AND EQUIPMENT ISOLATION Y.B. Yang, L.Y. Lu, and J.D. Yau Introduction Mechanisms of Base-Isolated Systems Structure-Equipment Systems with Elastomeric Bearings Sliding Isolation Systems Sliding Isolation Systems with Resilient Mechanism Issues Related to Seismic Isolation Design VIBRATION CONTROL Nader Jalili and Ebrahim Esmailzadeh Introduction Vibration-Control Systems Concept Vibration-Control Systems Design and Implementation Practical Considerations and Related Topics HELICOPTER ROTOR TUNING Kourosh Danai Introduction Neural Network-Based Tuning Probability-Based Tuning Adaptive Tuning Case Study Conclusion VIBRATION DESIGN AND CONTROL Clarence W. de Silva Introduction Specification of Vibration Limits Vibration Isolation Balancing of Rotating Machinery Balancing of Reciprocating Machines Whirling of Shafts Design through Modal Testing Passive Control of Vibration Active Control of Vibration Control of Beam Vibrations Appendix 7A: MATLAB Control Systems Toolbox STRUCTURAL DYNAMIC MODIFICATION AND SENSITIVITY ANALYSIS Su Huan Chen Introduction Structural Dynamic Modification of Finite Element Model Perturbation Method of Vibration Modes Design Sensitivity Analysis of Structural Vibration Modes High-Accuracy Modal Superposition for Sensitivity Analysis of Modes Sensitivity of Eigenvectors for Free-Free Structures Matrix Perturbation Theory for Repeated Modes Matrix Perturbation Method for Closely Spaced Eigenvalues Matrix Perturbation Theory for Complex Modes VIBRATION IN ROTATING MACHINERY H. Sam Samarasekera Introduction Vibration Basics Rotordynamic Analysis Vibration Measurement and Techniques Vibration Control and Diagnostics REGENERATIVE CHATTER IN MACHINE TOOLS Robert G. Landers Introduction Chatter in Turning Operations Chatter in Face-Milling Operations Time-Domain Simulation Chatter Detection Chatter Suppression Case Study FLUID-INDUCED VIBRATION Seon M. Han Description of the Ocean Environment Fluid Forces Examples SOUND LEVELS AND DECIBELS S. Akishita Introduction Sound Wave Characteristics Levels and Decibels HEARING AND PSYCHOLOGICAL EFFECTS S. Akishita Introduction Structure and Function of the Ear Frequency and Loudness Response Hearing Loss Psychological Effects of Noise NOISE CONTROL CRITERIA AND REGULATIONS S. Akishita Introduction Basic Ideas behind Noise Policy Legislation Regulation Measures of Noise Evaluation INSTRUMENTATION Kiyoshi Nagakura Sound Intensity Measurement Mirror-Microphone System Microphone Array SOURCE OF NOISE S. Akishita Introduction Radiation of Sound DESIGN OF ABSORPTION Teruo Obata Introduction Fundamentals of Sound Absorption Sound-Absorbing Materials Acoustic Characteristic Computation Compound Wall Attenuation of Lined Ducts Attenuation of Dissipative Mufflers General Considerations Practical Example of Dissipative Muffler DESIGN OF REACTIVE MUFFLERS Teruo Obata Introduction Fundamental Equations Effects of Reactive Mufflers Calculation Procedure Application Range of Model Practical Example DESIGN OF SOUND INSULATION Kiyoshi Okura Theory of Sound Insulation Application of Sound Insulation STATISTICAL ENERGY ANALYSIS Takayuki Koizumi Introduction Power Flow Equations Estimation of SEA Parameters Application in Structures INDEX

184 citations

Journal ArticleDOI
Abstract: This paper applies Buckingham's pi theorem to the problem of building a scaled car whose longitudinal and power-train dynamics are similar to those of a full-size high-mobility multipurpose wheeled vehicle (HMMWV). The scaled vehicle uses hardware-in-the-loop (HIL) simulation to capture some of the scaled HMMWV dynamics physically, and simulates the remaining dynamics onboard in real time. This is performed with the ultimate goal of testing cooperative collision avoidance algorithms on a testbed comprising a number of these scaled vehicles. Both simulation and experimental results demonstrate the validity of this HIL-based scaling approach.

75 citations

Journal ArticleDOI
Abstract: To circumvent the cost and inherent danger in testing aggressive vehicle controllers using full-sized vehicles, a scale vehicle testbed has been developed for use as an evaluation tool to bridge the design gap between simulation studies and full-sized hardware. We describe vehicle dynamic models of the IRS simulation system, along with experimental verification using frequency response and parameter measurements. The next section provides a detailed discussion of dynamic similitude via the Buckingham pi theorem (1914), as well as a graphical comparison between distributions of dynamic scale parameters of scaled and full-sized vehicles. Following that, a yaw rate vehicle controller is introduced to exemplify the type of investigations that can be conducted with the IRS. The controller uses differential torque and brake inputs to assist the driver to control the yaw rate of the vehicle and is designed to achieve model tracking while allowing the driver to maintain control over the front wheels of the vehicle.

68 citations