EXPERIMENTAL INVESTIGATIONS OF ACCELERATIONS AND VIBRATIONS ON VEHICLES AND BOATS

EXPERIMENTAL INVESTIGATIONS OF ACCELERATIONS AND VIBRATIONS ON VEHICLES AND BOATS

The first objective of this study is to measure the hydrodynamic accelerations of Istanbul AFAD’s inflatable boats. They use these boats for life saving purposes at Black Sea coasts and beaches of Istanbul. These types of boats running at high speed in rough seas experience six degrees of freedom heave, surge, sway, yaw, roll and pitch which is highly complex and dangerous. The reasons of the accelerations and pressures on the boat are, the wave impact, dead rise angle of the boat, running trim, displacement, speed of the boat and the incident wave heights. All the combination of the parameters make the hydrodynamic problem very complicated. An inertial measurement unit IMU , was used to measure the accelerations of the boat cruising at rough seas. The second objective is to examine the quality of roads in ITU Ayazaga campus with a car and an ambulance all the while identifying the environmental factors affecting individual susceptibility to motion sickness during the road transport. The second experiment was designed to analyze the quality of roads in Istanbul Technical University Ayazaga Campus while cruising with a car in a convenient speed and measure the accelerations on the stretcher for a sick person during the cruise of ambulance in the event of an emergency case

___

  • Blood, R.P., Rynell, W.P., Johnson, W.P. Whole-body vibration in heavy equipment operators of a front-end loader: Role of task exposure and tire configuration with and without traction chains, Journal of Safety Research, 2012, 43(5-6): 357-364.
  • Allen, D.P., Taunton, D.J., Allen, R. A study of shock impacts and vibration dose values onboard highspeed marine craft, International Journal of Maritime Engineering, 2008, 150: 10.
  • Dawkins, J.J., Bevly, D.M., Jackson, R.L. Evaluation of fractal terrain model for vehicle dynamic simulations, Journal of Terramechanics, 2012, 49(6): 299-307.
  • Shoop, S., Knuth, M., Wieder, W. Measuring vehicle impacts on snow roads, Journal of Terramechanics, 2013, 50(1): 63-71.
  • Fallah-Finni, S., Triantis, K., Rahmandad, H., Garza, J.M. Measuring dynamic efficiency of highway maintenance operations, Omega - The International Journal of Management Science, 2015, 50: 18-28.
  • Chan, Y.C., Huang, B., Yan, X., Richards, S. Investigating effects of asphalt pavement conditions on traffic accidents in Tennessee based on the pavement management system (PMS), Journal Of Advanced Transportation, 2010, 44 : 150-161.
  • Shah, Y.U., Jain, S.S., Parida, M. Evaluation of prioritization methods for effective pavement maintenance of urban roads, International Journal of Pavement Engineering, 2014, 15(3): 238-250.
  • Erdogan, G., Alexander, L., Rajamani, R.. Adaptive Vibration Cancellation for Tire-Road Friction Coefficient Estimation on Winter Maintenance Vehicles, IEEE Transactions On Control Systems Technology, 2010, 18(5): 1023-1032.
  • Nila, A., Vanlanduit, S., Vepa, S., Van Paepegem, W. A PIV-based method for estimating slamming loads during water entry of rigid bodies, Measurement Science And Technology, 2013, 24(4).
  • Wines, C. Stability and Safety Issues for High Speed Operation of Rigid Inflatable Boats, 11th International Conference on Fast Sea Transportation, Hawaii, 2011, 844-849.
  • Wertheim, A.H., Bos, J.E., Bles, W. Contributions of roll and pitch to sea sickness, Brain Research Bulletin, 1998, 47(5): 517-524.
  • Turner, M., Griffin, M.J. Motion sickness in public road transport: passenger behaviour and susceptibility, Ergonomics, 1999, 42(3): 444-461.
  • Diaz, J.M., Dormido, S., Aranda, J. Interactive computer-aided control design using quantitative feedback theory: the problem of vertical movement stabilization on a high-speed ferry, International Journal of Control, 2005, 78(11): 813-825.
  • Kim, M.S., Kim, K.W., Yoo, W.S. Method To Objectively Evaluate Subjective Ratings Of Ride Comfort, International Journal of Automotive Technology, 2011, 12(6): 831-837.
  • Ahn, S.J. Discomfort Of Vertical Whole-Body Shock-Type Vibration In The Frequency Range Of 0.5 To 16 Hz, International Journal of Automotive Technology, 2010, 11(6): 909-916. [16] Zhao, X., Schindler, C. Evaluation of whole-body vibration exposure experienced by operators of a compact wheel loader according to ISO 2631-1:1997 and ISO 2631-5:2004, International Journal of Industrial Ergonomics, 2014, 44(6):840-850.
  • Turkay, S., Akcay, H. A study of random vibration characteristics of the quarter-car model, Journal of Sound and Vibration, 2005, 282(1-2): 111-124.
  • Misol, M., Algermissen, S., Monner, H.P. Experimental investigation of different active noise control concepts applied to a passenger car equipped with an active windshield, Journal of Sound and Vibration, 2012, 331(10): 2209-2219.
  • Belgacem, W., Berry, A., Masson, P. Active vibration control on a quarter-car for cancellation of road noise disturbance, Journal of Sound and Vibration, 2012, 331(14): 3240- 3254.
  • Matilainen, M., Tuononen, A., 2014. Tyre contact length on dry and wet road surfaces measured by three-axial accelerometer, Mechanical Systems and Signal Processing, 2015, 52- 53:548-558.
  • Aranda, J., Cruz, J.M., Diaz, J.M. Design of a multivariable robust controller to decrease the motion sickness incidence in fast ferries, Control Engineering Practice, 2004, 13: 985-999.
  • Kuznetsov, A., Mammadov, M., Sultan, I., Hajilarov, E. Optimization of improved suspension system with inerter device of the quarter-car model in vibration analysis, Archive of Applied Mechanics, 2011, 81(10): 1427-1437.
  • TS ISO 2631-1 Mechanical vibration and shock -- Evaluation of human exposure to whole- body vibration, Part1 (2013).
  • TS ISO 2631-5 Mechanical vibration and shock -- Evaluation of human exposure to whole- body vibration, Part 5 (2013).
  • Riley, M.R.. Analysing Accelerations, Professional Boat Builder, 2013, 141: 36-48.
  • Ullman, J. Slamming Standards, Professional Boat Builder, 2014, 149:48-55.