Transmissibility Along Human Segments When Exposed to Vibration Arvinder Singh, Harkirat Singh, Ishbir Singh and Sachin Kalsi Abstract Human body suffers from maximum effect of vibration while travelling and driving. So, it becomes important to study the response of human body when excitations are transferred while travelling. A realistic Indian male human body has converted into 3-D CAD model using anthropometric data available in existing literature. Transmissibility is from seat to lower torso, seat to upper torso and seat to head in frequency range of 0–20 Hz using finite element method. It has been found that maximum effect of vibration is noticeable at lower torso and head as compared to other human body segments. The results obtained using this study will be useful in designing seats and other components of tractor. Keywords FEM · Indian human subject · Transmissibility 1 Introduction With the change in lifestyle and technology, people have become more dominated towards their health and want to live a comfortable and luxurious life. Human body suffers from whole-body vibration (WBV) generated from many sources, i.e. while travelling, driving, working on machines, etc. WBV induces ill-effects like headache, lower back pain, spinal problem, motion sickness, etc. Because of the adverse effect on human body, it becomes important to study the effect of vibration and minimize its effects. Components for human use are designed to reduce the effects of vibration and should be beyond resonant frequency of human body. To overcome the effects of vibration and to increase comfort level of human body; most of the researchers have worked in this area using different human models and methods. Kitazaki and Griffin [1] developed a 2-D human model using FEM technique by considering beam, spring, mass damper system, in which the six modes were founded with 5 Hz of primary and 8 Hz of secondary frequency. Mansfield and Griffin [2] conducted an experiment on twelve human subjects to check the A. Singh · H. Singh · I. Singh (B ) · S. Kalsi Chandigarh University, Mohali 140413, India e-mail: ishbir@rediffmail.com © Springer Nature Singapore Pte Ltd. 2020 H. Kumar and P. K. Jain (eds.), Recent Advances in Mechanical Engineering, Lecture Notes in Mechanical Engineering, https://doi.org/10.1007/978-981-15-1071-7_19 227