Dynamic modeling of a simply supported beam with an overhang mass

Alzghoul, Mohammad; Cabezas, Sebastian; Szilágyi, Attila

doi:10.1556/606.2022.00523

Cited by 4 publications

(3 citation statements)

References 7 publications

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“…The measurement procedure involves the excitation of the go-kart frame at predetermined points with the impulse hammer to ensure adequate energy transfer. Sensor positions are selected considering anticipated vibration modes and desired response functions, with measurements averaged to account for random noise [26][27][28][29][30][31]. The accelerometer, a movable three-directional instrument, is strategically placed based on FE simulations and relocated after each excitation.…”

Section: Modeling: Torsional Stiffness Analysismentioning

confidence: 99%

“…During the test, the quality of FRFs is assessed, evaluating the stability of the relationship between excitation and response functions, with coherence values indicating the degree of correlation. In the experimental modal analysis, ten Eigenmodes were extracted in the 0-200 Hz range, compared with simulation results for validating the numerical model [29], see Table 1. Notably, the identified 38.5 Hz torsional and 40.4 Hz bending modes showed very close matches with simulation results.…”

Section: Modeling: Torsional Stiffness Analysismentioning

confidence: 99%

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Development of a multibody model for go-karts considering frame flexibility

Horváth,

Zelei

2024

Pollack

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This study focuses on the optimization dynamics of racing go-karts, which is heavily influenced by the frame's stiffness. Lacking suspensions and differentials, go-karts rely on the frame stiffness for wheel balancing and skid prevention by lifting the inner rear wheel during turns. Utilizing a rigid-flexible model in MSC Software ADAMS View, validated by frame deformation measurements, this research integrates finite element analysis with multibody techniques. The model, leverages computer aided design files for frame geometry and employs finite element analysis for frame validation. It facilitates evaluating go-kart dynamics through simulations, aiding in maneuver testing and design optimization. This approach provides a comprehensive framework for advancing go-kart designs.

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Section: Modeling: Torsional Stiffness Analysismentioning

confidence: 99%

Section: Modeling: Torsional Stiffness Analysismentioning

confidence: 99%

Development of a multibody model for go-karts considering frame flexibility

Horváth,

Zelei

2024

Pollack

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“…Song, Dong et al (7) studied the transverse vibration of Euler Bernoulli beam with mass of ends and springs. AL ghoul, Cabezas et al (8) derive an expression to calculate the natural frequencies and plot the mode shapes of a simply-supported beam with an overhang with an end overhang point mass by using the Euler Bernoulli theory in the case of free transverse vibrations. Kudryavtsev, Malykhina et al (9) Considers the problem of estimating the first eigenfrequency and the first critical force of the beam using the so-called support coefficients.…”

Section: Introductionmentioning

confidence: 99%

Dynamic behavior of pin-free beam with torsional spring and hub at pinned end

Mohammed Taha Yassin,

Tahseen Taha Othman

2024

Global J. Eng. Technol. Adv.

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This paper described the free vibration of a Euler-Bernoulli beam and discovered the first five dimensionless natural frequencies and mode shapes of motion for the pin-free beam model with a helical spring and rotating mass on the pinned side of the beam. The effect of changing the dimensionless torsional stiffness ratios was investigated, as was the effect of changing the dimensionless rotational inertia torque ratios Concerning the vibration properties of the beam. The mathematical equations that regulate the pin-free beam model were constructed using the exact analytical solution, establishing the Admissible Function and the natural frequency equation for the basic pin-free beam system. The approximate Rayleigh-Ritz approach was then used to determine the first five dimensionless natural frequencies, as well as the movement pattern for the pin-free beam model with a helical spring and a rotating mass on the side of the hinge. The results demonstrated that modifying the beam's natural frequencies is dependent on the ratios of the additional torsional spring parameters as well as the ratios rotational moment of inertia. The threshold system frequencies increase when the spring parameters are the major factor, and decrease when the inertia moment parameters are the main factor. Both play a role in influencing natural frequency to varied degrees. Unifying the final distribution of parameters might lead to optimizing the impact of parameters on the natural frequencies of the system.

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A spindle system analysis using systems receptance coupling approach

Alzghoul¹,

Sarka²,

Szabó³

2024

DMS

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The goal of this study is to dynamically simulate a turning-centre main spindle system utilizing the systems receptance coupling technique to determine the spindle system's first three resonant frequencies in the event of transverse vibrations. The findings are then confirmed using the finite element technique using ANSYS software. The significance of analysing the spindle system described in this study is that it can be utilized to optimize the spindle system in terms of resonance frequencies for improved performance in terms of spindle vibration while the turning centre is in operation.

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Dynamic modeling of a simply supported beam with an overhang mass

Cited by 4 publications

References 7 publications

Development of a multibody model for go-karts considering frame flexibility

Development of a multibody model for go-karts considering frame flexibility

Dynamic behavior of pin-free beam with torsional spring and hub at pinned end

A spindle system analysis using systems receptance coupling approach

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