Prof Ir Ts Dr Asan G.A. Muthalif
Dept. of Mechanical and Industrial Engineering
College of Engineering, Qatar University 

Broadband Vibration Energy Harvesting using Piezoelectric patches

Abstract

Vibration energy harvesting (VEH) converts ambient mechanical to electrical energy to power remote sensors and portable power devices. Piezoelectric materials are used to transduce mechanical energy in vibrating bodies to electrical energy. Vibration is generally grouped into low, mid, and high-frequency based on modal overlapping factor (MOF). The dynamic response of a structure in the Low-frequency range is deterministic, while the mid-high-frequency response is non-deterministic. One main challenge is optimizing their design for maximum energy harvesting at a wide range of frequencies. This talk discusses approaches for harvesting vibration energy from deterministic and non-deterministic substructures. These approaches include the optimization of a piezoelectric beam, the use of coupled magnets, and the optimization of piezoelectric patch shapes.

Professor Dr. Zaidi Mohd Ripin
School of Mechanical Engineering
Universiti Sains Malaysia

Vibration as a Form of Therapy and Rehabilitation

Abstract

Vibration therapy has emerged as a versatile treatment modality in medical therapy and rehabilitation, offering a range of benefits across various conditions. This therapy enhances musculoskeletal function by improving muscle strength, flexibility, and mobility, while also accelerating recovery from injuries. The lecture will cover the research work done by the TheVibrationLab and the Neurorehabilitation Engineering team in characterizing diseases related and expressed as human vibration such as Parkinson's disease. Discussion will also cover other forms of therapy using localized vibration therapy (LVT) particularly for stroke rehabilitation. The effectiveness of vibration therapy is influenced by parameters such as frequency, amplitude, and duration, necessitating an individualized approach tailored to each patient's unique needs and conditions. While vibration therapy shows promise in enhancing overall health and rehabilitation outcomes, further research is warranted to optimize treatment protocols and assess long-term efficacy.