In a variety of engineering disciplines, including the mechanical, aerospace, and energy industries, study nonlinear dynamics vibration analysis rotating machinery has become increasingly important. many applications, turbines, engines, compressors, pumps, is essential for both performance safety entire system. Nonlinearities, on other hand, add intricate dynamic behaviours phenomena into these...

Misalignment and unbalance are the major concerns in rotating machinery. When the power supply to any rotating system is cutoff, the system begins to lose the momentum gained during sustained operation and finally comes to rest. The exact time period from when the power is cutoff until the rotor comes to rest is called Coast Down Time. The CDTs for different shaft cutoff speeds were recorded at...

Increased running speeds and the requirement for rotating machinery to operate within specified levels of vibration mean that the control of machinery vibration is essential in today’s industry. In this work, the flexible rotor balancing problem based on the influence coefficient method and holospectrum technique is formulated as a minimax optimization problem. This formulation can solve the mi...