ROLLOVER INDEX FOR THE DIAGNOSIS OF TRIPPED AND UNTRIPPED ROLLOVERS

Authors

  • AMIR HOSSEIN KAZEMIAN MECHANICAL ENGINEERING DEPARTMENT, SHAHID BAHONAR UNIVERSITY OF KERMAN, KERMAN, IRAN MECHANICAL ENGINEERING DEPARTMENT, UNIVERSITY OF SISTAN AND BALUCHESTAN, ZAHEDAN, IRAN
  • MAJID FOOLADI PROFESSOR OF MECHANICAL ENGINEERING AT SHAHID BAHONAR UNIVERSITY OF KERMAN
  • HOSSEIN DARIJANI ASSOCIATE PROFESSOR OF MECHANICAL ENGINEERING AT SHAHID BAHONAR UNIVERSITY OF KERMAN

Keywords:

VEHICLE DYNAMICS, TRIPPED ROLLOVER, UNTRIPPED ROLLOVER, ROLLOVER INDEX, SUSPENSION SYSTEM

Abstract

IT IS NECESSARY TO DETECT DANGER AS SOON AS POSSIBLE TO AVOID ROLLO-VER OF A VEHICLE IN SUDDEN EVENTS. USING ROLLOVER INDEX IN REAL TIME CAN BE USED FOR THIS PURPOSE. THE TRADITIONAL ROLLOVER INDICES CU-RRENTLY APPLYING IN THE VEHICLES CAN ONLY DETECT THE UNTRIPPED ROLLOVER DUE TO SEVERE LATERAL ACCELERATION IN VEHICLES. THESE INDICES CANNOT DETECT THE TRIPPED ROLLOVER RESULTED FROM VERTICAL EXTERNAL FORCES IN A LONG DIRECTION. THERE ARE RECENTLY MANY QUANTITATIVE STUDIES ABOUT THE TRIPPED ROLLOVER AND AN INDEX WAS ALSO INTRODU-CED TO THIS KIND OF ROLLOVER. IN THIS RESEARCH, WE EXAMINED THE DYNAMICS OF A SUV TO IMPROVE THIS INDEX AND ALSO PRESENTED A NEW INDEX TO DETECT THE BOTH TYPES OF ROLLOVERS. THE PRECISION AND ACCURACY OF THE NEW INDEX WAS EVALUATED BY SIMULATION IN INDUS-TRIAL SOFTWARE OF CARSIM. THE NUMERICAL RESULTS OF THE NEW DEVELO-PED MODEL WERE COMPARED WITH THE TEST RESULTS OF AN AUTOMOBILE AT ONE-EIGHTH SCALE IN EQUAL CONDITIONS AND INPUTS. THE RESULTS ARE INDICATIVE OF THE BETTER PERFORMANCE OF THE NEW MODEL PRESENTED IN THIS RESEARCH.

Author Biographies

AMIR HOSSEIN KAZEMIAN, MECHANICAL ENGINEERING DEPARTMENT, SHAHID BAHONAR UNIVERSITY OF KERMAN, KERMAN, IRAN MECHANICAL ENGINEERING DEPARTMENT, UNIVERSITY OF SISTAN AND BALUCHESTAN, ZAHEDAN, IRAN

AMIR HOSSEIN KAZEMIAN RECEIVED HIS B.SC. AND M.SC. DEGREES FROM SHAHID BAHONAR UNIVERSITY OF KERMAN AND UNIVERSITY OF SCIENCE AND TECHNOLOGY IN 2001 AND 2004, RESPECTIVELY. HE IS CURRENTLY PH.D. CANDIDATE OF MECHANICAL ENGINEERING IN SHAHID BAHONAR UNIVERSITY OF KERMAN UNDER THE SUPERVISION OF PROF. FOOLADI. HIS RESEARCH INTERESTS INCLUDE ADVANCED CONTROL SYSTEM DESIGN, OBSERVER DESIGN FOR NONLINEAR SYSTEMS, SYSTEM IDENTIFICATION, APPLICATIONS TO AUTOMOTIVE SYSTEMS AND ENERGY HARVESTING. HIS CURRENT RESEARCH IS FOCUSED ON THE VEHICLE DYNAMIC BEHAVIOR.

MAJID FOOLADI, PROFESSOR OF MECHANICAL ENGINEERING AT SHAHID BAHONAR UNIVERSITY OF KERMAN

MAJID FOOLADI IS PROFESSOR OF MECHANICAL ENGINEERING AT SHAHID BAHONAR UNIVERSITY OF KERMAN. HE RECEIVED HIS M.SC. AND PH.D. DEGREES FROM TEHRAN UNIVERSITY (1980) AND BRADFORD UNIVERSITY (2001). HIS RESEARCH ACTIVITIES INCLUDE CONTROL AND DYNAMIC BEHAVIOR OF MECHANICAL SYSTEMS. ALSO, HE INVESTIGATES DYNAMIC MODELING OF INDUSTRIAL MACHINES, AUTOMOTIVE AND TURBO MACHINERY.  HE PUBLISHED MORE THAN 40 PAPERS IN THE FIELD OF LINEAR AND NON-LINEAR DYNAMICS OF SYSTEMS. MAJID FOOLADI IS MEMBER OF IRANIAN SOCIETY OF MECHANICAL ENGINEERING (ISME).

HOSSEIN DARIJANI, ASSOCIATE PROFESSOR OF MECHANICAL ENGINEERING AT SHAHID BAHONAR UNIVERSITY OF KERMAN

HOSSEIN DARIJANI RECEIVED HIS B.SC. IN MECHANICAL ENGINEERING FROM SHAHID BAHONAR UNIVERSITY OF KERMAN. ALSO, HE RECEIVED HIS M.SC. AND PH.D. IN MECHANICAL ENGINEERING FROM SHARIF UNIVERSITY OF TECHNOLOGY. HIS TECHNICAL INTERESTS ARE NONLINEAR CONTINUUM MECHANIC, VEHICLE DYNAMIC SIMULATION AND MODELING OF HYPER ELASTIC MATERIAL. NOW, HE IS ASSOCIATE PROFESSOR IN SHAHID BAHONAR UNIVERSITY OF KERMAN.

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Published

2017-08-26

Issue

Vol. 14 No. 11 (2017)

Section

Articles

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