Keynote Speakers
Dr. Mohd Amzar Azizan
Universiti Kuala Lumpur, Malaysia
Universiti Kuala Lumpur, Malaysia
Dr. Mohd Amzar Azizan graduated from Universiti Kuala Lumpur in 2007 with Diploma in the field of Aircraft Engineering. He then pursued his B.Eng in Aircraft Engineering at the University of Glamorgan, Wales, graduating in June 2011. Following from this, in early 2012, he continued his study with PhD in Aerospace Engineering, with specialization in Noise and Vibration. After completing his PhD in 2016, he started working as the Universiti Kuala Lumpur as a full-time academic. He published actively in local and international publications.
He is currently a Senior Lecturer and Postgraduate Coordinator at the Aerospace Section, Universiti Kuala Lumpur. He is also a visiting lecturer at Kamphaeng Phet Rajabhat University (KPRU), Thailand. In 2017, he was appointed as a Principle Researcher for Ergonomics and Human Factor Research Group. While, in early 2018, he was appointed as technical committee member for ISO/TC 108/SC 4 (human exposure to mechanical vibration and shock) from Japan. Dr. Amzar is well known as the active researcher in the area of human response to vibration and vehicle ride comfort.
He is currently a Senior Lecturer and Postgraduate Coordinator at the Aerospace Section, Universiti Kuala Lumpur. He is also a visiting lecturer at Kamphaeng Phet Rajabhat University (KPRU), Thailand. In 2017, he was appointed as a Principle Researcher for Ergonomics and Human Factor Research Group. While, in early 2018, he was appointed as technical committee member for ISO/TC 108/SC 4 (human exposure to mechanical vibration and shock) from Japan. Dr. Amzar is well known as the active researcher in the area of human response to vibration and vehicle ride comfort.
The effects of whole body vibration on humans: dangerous or advantageous?
There is a growing body of literature that recognises the importance of vehicle vibration on seated occupant. Vibration transmitted to the seated human body from the excitation sources such as tyre-road interaction and vehicle powertrain path resides below 100 Hz. Previous studies have reported that exposure to vibration has considerable influences on human comfort, perception, and health. A number of researchers have also suggested that prolong exposure to vibration may give rise to fatigue sensation. Therefore, the issue of human response to vibration has received considerable critical attention. Following that, the ISO 2631-1 (1997) International Standard for human comfort has been developed. Although extensive research has been carried out on human body vibration and this international standard has been developed for human body comfort assessment, however, there is no equivalent standard for human drowsiness caused by vibration in ISO standard. Although few studies have investigated the association between vibration and drowsiness, the evidence for this relationship is inconclusive. In recent years, vehicle crashes have become a major social safety problem. One of the most important factors contributing to the high fatalities was the reduction of the driver’s cognitive state in their perception, situational awareness, and vehicle control abilities while being drowsy. Several studies have shown that there is a possible link between sleep deprivation and psychomotor deficit that can cause an accident. However, none of these studies has considered vibration that can cause drowsiness. The influence of vibration on the seated occupant drowsiness was not well investigated. Although many studies have reported the effects of vibration on comfort of the seated human body, the effects of fatigue, and particularly drowsiness, are yet to be rigorously characterised. This is due to several factors: a) the use of “fatigue” as a general term that is poorly defined in the literature b) “fatigue” being multifactorial c) specific types of “fatigue” not having been well studied in the context of vibration. Hence, comprehensive studies undertaken includes the experiment design and drowsiness measurement method.
There is a growing body of literature that recognises the importance of vehicle vibration on seated occupant. Vibration transmitted to the seated human body from the excitation sources such as tyre-road interaction and vehicle powertrain path resides below 100 Hz. Previous studies have reported that exposure to vibration has considerable influences on human comfort, perception, and health. A number of researchers have also suggested that prolong exposure to vibration may give rise to fatigue sensation. Therefore, the issue of human response to vibration has received considerable critical attention. Following that, the ISO 2631-1 (1997) International Standard for human comfort has been developed. Although extensive research has been carried out on human body vibration and this international standard has been developed for human body comfort assessment, however, there is no equivalent standard for human drowsiness caused by vibration in ISO standard. Although few studies have investigated the association between vibration and drowsiness, the evidence for this relationship is inconclusive. In recent years, vehicle crashes have become a major social safety problem. One of the most important factors contributing to the high fatalities was the reduction of the driver’s cognitive state in their perception, situational awareness, and vehicle control abilities while being drowsy. Several studies have shown that there is a possible link between sleep deprivation and psychomotor deficit that can cause an accident. However, none of these studies has considered vibration that can cause drowsiness. The influence of vibration on the seated occupant drowsiness was not well investigated. Although many studies have reported the effects of vibration on comfort of the seated human body, the effects of fatigue, and particularly drowsiness, are yet to be rigorously characterised. This is due to several factors: a) the use of “fatigue” as a general term that is poorly defined in the literature b) “fatigue” being multifactorial c) specific types of “fatigue” not having been well studied in the context of vibration. Hence, comprehensive studies undertaken includes the experiment design and drowsiness measurement method.
