Structural Investigation through Comparison Analyses at the Pedals of Organ Accelerator and Pendant Accelerator

Transcription

1 , pp Structural Investigation through Comparison Analyses at the Pedals of Organ Accelerator and Pendant Accelerator Jae Ung Cho 1 1 Division of Mechanical & Automotive Engineering, Kongju National University, , Cheonan Daero, Seobuk-gu, Cheonan-si, Chungnam of Korea , jucho@kongju.ac.kr Abstract. In this study, in relation to the influence of loads to the accelerator pedals of pendant type and the organ type, a newly shaped accelerator pedal will be modeled, analyzed, and compared. The pendant type with an improved shape will be designed and the structural research was conducted through simulation analysis. Keywords: Structural investigation, Comparison analysis, Organ accelerator pedal, Pendant accelerator pedal, Simulation analysis 1 Introduction This research makes a comparison between a generally used pendant type accelerator pedal and that of a newly designed accelerator pedal (which is designed by a comparison between an organ type accelerator pedal and a pendant type accelerator pedal) [1-5]. The general pendant type accelerator pedal, as shown by (a) of Fig. 1, was modeled with a width of 50mm and a length of 130mm. The newly designed accelerator pedal (b) was modeled with a width of 54mm and a length of 180mm. ISSN: ASTL Copyright 2016 SERSC

2 2 Study models and results (a) Accelerator pedal of pendant type (b) Designed accelerator pedal Fig. 1. Study models To investigate the equivalent stress of an accelerator when force (stress) is applied to the accelerator pedal, each accelerator pedal is fixed, and a pressure of approximately MPa which is the assumed as the amount of force to be delivered from the tip of a human's foot, is applied to the accelerator pedal's footplate as shown by Fig. 2. (a) Fixed support at accelerator pedal of pendant type (b) Pressure condition at accelerator pedal of pendant type support 30 Copyright 2016 SERSC

3 (c) Fixed support at designed accelerator pedal (d) Pressure condition at designed accelerator pedal Fig. 2. Constraint conditions of accelerator pedals Fig. 3 and Table 1 shows each accelerator pedal's equivalent stress in accordance with the loads applied to its footplate. (a) Accelerator pedal of pendant type (b)designed accelerator pedal Fig. 3. Equivalent stresses of accelerator pedals Copyright 2016 SERSC 31

4 Table 1. Maximum and minimum equivalent stresses of accelerator pedals Accelerator pedal of pendant type Designed accelerator pedal Maximum equivalent stress Minimum equivalent stress Mpa Mpa Mpa Mpa As shown by Fig. 3, when considering the equivalent stress, (a)'s maximum equivalent stress is MPa and its minimum equivalent stress is MPa. Also, (b)'s maximum equivalent stress is MPa, and its minimum equivalent stress is MPa. Like this, when two accelerator pedals are compared, the equivalent stress of the newly designed shaped accelerator pedal was lower than that of the general accelerator pedal of pendant type. 3 Conclusion This study analyzed the differences in two accelerator types by analyzing equivalent stress in relation to loads that are applied to each accelerator pedal. The pendant type accelerator pedal's maximum equivalent stress was Mpa and its minimum equivalent stress was Mpa. Also, the designed accelerator pedal's maximum equivalent stress was Mpa and its minimum equivalent stress was Mpa. By comparing with two kinds of accelerator pedals in the structural analysis, the newly designed accelerator pedal's equivalent stress was proved to be smaller than the general pendant type accelerator pedal's equivalent stress. The pendant type with an improved shape will be designed and the structural research was conducted through simulation analysis. References 1. Werner, Ö., Ingrid, U.: Third body formation on brake pads and rotors. Tribology International, vol. 39, issue 5, pp (2006) 2. Cho, H., Cho, J., Kim, K., Choi, D.: Structurally safe design of rear seat frame applied with high tension steel plate. International Journal of Digital Content Technology and its Applications, vol. 7, no. 12, pp (2013) 3. Yang, Y., Xu, H.: Finite Element Analysis of Power Spinning and Spinning Force for Tube Parts. International Journal of Advanced Science and Technology, vol. 20, pp (2010) 4. Paweł, G., Mariusz, L.: Computational model for friction force estimation in sliding motion at transverse tangential vibrations of elastic contact support. Tribology International, vol. 90, pp (2015) 32 Copyright 2016 SERSC

5 5. Shirsendu, D., Amit, K.: Concept of an Electromagnetic Solar Based Power Drive for Automobile. International Journal of Advanced Science and Technology, vol. 76, pp (2015) Copyright 2016 SERSC 33