Analysis of the effects of main design parameters variation on the vibration characteristics of a vehicle sub-frame

Abstract

In the design process of an automobile part, several analysis methods are usually used to evaluate the performance of the part. However, most automobile design engineers do not directly use CAE ( computer aided engineering) tools since specific skills are required to obtain practical results. Moreover, CAE requires a huge amount of computation time and cost. To resolve these problems, a new design approach, termed first order analysis (FOA), has been proposed. In this paper, the FOA technique is employed to design a vehicle sub-frame. An equivalent model of the vehicle subframe which only consists of beam elements is proposed and the modal properties obtained with the model are compared to those obtained with a full scale finite element model. The effects of some parameter variations on the modal characteristics of the vehicle sub-frame are investigated by employing the FOA equivalent model.

Frame vibration states identification for corn harvester based on joint improved empirical mode decomposition - Support vector machine method

“…Bum et al. used first order analysis technology to design a vehicle sub-frame and proposed an equivalent model of vehicle sub-frame composed only of beam elements ( Kim et al., 2009 ). Shrinidhi et al.…”

“…Its modal parameters (vibration mode, damping ratio and frequency) will also change when the structure is damaged or the physical parameters (mass, stiffness and damping) change. Bum et al used first order analysis technology to design a vehicle sub-frame and proposed an equivalent model of vehicle sub-frame composed only of beam elements (Kim et al, 2009). Shrinidhi et al used ANSYS software to analyze the ladder frame and extracted the first six non-zero natural frequencies and their corresponding modes of vibration (Rao and Bhattu, 2019).…”

Research on method of vibration analysis of rubber tracked vehicle based on dynamic model

“…With development of elementary theory of nonlinear mechanics in recent years, the nonlinear vibration resolving has begun to be applied to research on terramechanics of wheeled vehicles with some achievements made [10,11]. For the rubber track system running gear outfitted with rubber track plate, it is of great importance to use related theories to illuminate the influence of vibration characteristics in running course on vehicle stability [12][13][14]. The main purpose of this research is to build dynamic model for rubber track system, in the hope of decreasing the harmonic vibrations and increasing operating stability in running of rubber tracked vehicle.…”

Development and Validation of Chassis Mounted Platform Design for Heavy Vehicles

“…Twist locks are provided to hold the containers safely and rigidly on the platform of the vehicle or on the base of trailer. The twist lock locations on the platform, the load pattern inside the containers, load intensity, location of centre of gravity, the wheel base, self-weight of the platform, axle load distribution, approach and departure angles, ramp angle of the vehicle, trailer length, front & rear overhangs, vehicle width or height form the most important deign constraints of the chassis mounted platform [5][6][7][8][9][10][11][12].…”