Failure mode investigation and re-design of heavy-duty commercial vehicle bogie bracket

Author:

Thangapazham P.1,Kumaraswamidhas L.A.1,Muruganandam D.2

Affiliation:

1. Department of Mining Machinery Engineering, Indian Institute of Technology (ISM), Dhanbad, Jharkhand 826004, India.

2. Department of Mechanical Engineering, Jeppiaar Institute of Technology, Chennai, Tamil Nadu 631604, India.

Abstract

Heavy-duty commercial vehicles play a significant role in commodity logistics. For each of these vehicles, the suspension is the most essential system to support the load and road shock. Bogie type suspension system is employed to safeguard the vehicle from road shock. The bogie bracket is a juncture between the chassis and the axle in the suspension system. The bogie bracket has been identified as a critical part of the suspension system. In the present study, bogie bracket base design and modelling was performed using computer-aided engineering (CAE). The strength of the bogie was tested to identify weaker sections. Design modifications were performed to improve the strength on identified critical sections through reinforcement techniques. A road load data acquisition (RLDA) test was conducted under different road conditions to validate CAE results. Five different rough-road road surfaces were chosen for RLDA testing. Using strain gauges, strain data were acquired during the test. Corresponding stress values were obtained and maximum stress was found in all driving conditions. For the base design bogie bracket, under RLDA test, crack initiation and crack propagation were identified under vertical loads. A reinforced bogie bracket was designed and found to have a higher strength and longer expected life than that of the base design.

Publisher

Canadian Science Publishing

Subject

Mechanical Engineering

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