Free Vibration Characteristics of Single-Degree-of-Freedom (SDOF) Mechanical Systems: Investigating through Theory, Experimentation and Numerical Simulation |Chapter 3 | Engineering Research: Perspectives on Recent Advances Vol. 7

The study of free vibration is pivotal in understanding and predicting the dynamic behaviour of mechanical systems, enabling engineers to optimise designs, ensure structural integrity, and enhance performance. In this study, the primary goal is to investigate the free vibration characteristics of a single-degree-of-freedom (SDOF) mechanical system. The objectives include determining the system's natural frequency, damping ratio, and analysing its transient behaviour during free vibrations. This study employs a combination of theoretical analysis, numerical simulations using Simulink, and experimental observations to achieve these objectives. The Sanderson simple vibration apparatus was used for the study. Several important parameters, such as the damping ratio, the damping constant, the critical damping constant, the logarithmic decrement, and how different setups affect the results, were analysed. Numerical results provide insights into the dynamic response, revealing critical system behaviours such as damping effects. The observation of this study also highlights the crucial role of damping in controlling and mitigating vibrations. Such behaviour is of paramount importance in engineering applications where the control of oscillations is essential for system stability and performance. The discussion contextualises the findings within the realm of mechanical engineering principles, emphasising practical implications. In conclusion, this study offers an understanding of SDOF system dynamics, with applications in engineering design and analysis.

 

Author (s) Details

Abdullah Al Hossain Newaz
Department of Mechanical Engineering, University of Bridgeport, Bridgeport, 06604, USA.

 

Rudra Mitra
Department of Computer Science, University of Bridgeport, USA.

 

Refat Jahan
Department of Mechanical Engineering, University of New Haven, USA.

 

Abdul Kadir
Department of Analytics and System, University of Bridgeport, USA.

 

 

Please see the book here:- https://doi.org/10.9734/bpi/erpra/v7/5456

Coordinated Control Strategy for Multimachine Power System to Enhance Dynamic Stability| Book Publisher International

 Power frameworks are as of now working nearer to their static and dynamic soundness limits because of an expansion in the power move requests on existing transmission frameworks, given the critical development of burdens and age, absence of new transmission lines, and cutthroat power market pressures. Solidness issues related with voltage breakdown and undamped motions are as of now the main sources of significant power outages, FACTS regulators are turning out to be more important, since because of their quick reaction, these regulators can work on the steadiness of a power framework, consequently permitting a more productive utilization of existing transmission networks Various kinds of FACTS regulators, especially SVCs, TCSCs, STATCOMs, SSSCs, and UPFCs are being utilized practically speaking.

Regulators in light of ac vectorial converters have been proposed showing that it is feasible to accomplish comparative control goals and execution as those in view of VSC converters. SVeC (Series Vectorial Compensator) to control dynamic power on a transmission line with a basic construction, infusing a series capacitive reactance that is changed consequently through an obligation cycle control. SVeC present a smoother control elective than the TCSC, since the TCSC "hops" from capacitive to inductive working districts because of issues related with open-circuit working circumstances and music.

In light of the previously mentioned correlations, it very well may be contended that immediate PWM, vectorial-converter-based regulators might be a sensible option to thyristor-and VSC-based choices for comparative applications. Hence, different elements on utilizations of such regulators should be dissected to assess its exhibition in some multi-machine power frameworks. Consequently my examination work centers around insightful demonstrating of SVeC for a powerful security investigation. This book targets investigating the issue of this unique solidness issue in multimachine power frameworks and its relief by applying power framework regulators Traditional and proficient ways of relieving these issues are to determine extra signals for generator excitation frameworks and to remunerate the variances of force move through the transmission organizations. Power framework stabilizer (PSS) and adaptable exchanging current transmission framework (FACTS) gadgets have surprising ability to play out these assignments. The target of this book is to introduce a point by point study, recreation, and examination of the unique strength issue and its relief by applying PSS, Coordinated Control of series FACTS gadget SVeC with PSS, direct criticism regulator in light of LQR idea and nonlinear input control in view of sliding mode idea. The reenactment results have been introduced utilizing eigenvalue and time space examination in MATLAB.

Author(s) Details:

Kailasapu Himaja,
Department of Technical Education, Government of Telangana, India.

T. S. Surendra,
Department of Technical Education, Government of Telangana, India.

S. Tara Kalyani,
Department of Technical Education, Government of Telangana, India.

Please see the link here: https://stm.bookpi.org/CCSMPSEDS/article/view/7905