Coupled Dynamics of Cable-Harnessed Structures: Experimental Validation

Yerrapragada, Karthik; Salehian, Armaghan

doi:10.1115/1.4043990

Cited by 9 publications

(11 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For the periodic pattern case, n f is varied. e system parameters are from Table 3 and are similar to our experimental characterization [16]. For the OP modes, when the straight cable with offset case and the n f � 5 periodic pattern case are compared, the coupling effects are slightly lower for n f � 5 case.…”

Section: Resultsmentioning

confidence: 99%

“…e coefficients are a function of beam and cable parameters [19]. In these energy expressions, the terms higher than second order are ignored considering the small-scale vibrations.…”

Section: Development Of Energy Expressions Considering the Coupling Effectsmentioning

confidence: 99%

“…e coupling effects because of cable attachment were first incorporated in our previous works [15,16]. As a starting point, a straight pattern cable was attached near the edge of the beam along its length, and the coupling effects increased with this offset distance from the centerline [15].…”

Section: Introductionmentioning

confidence: 99%

“…It was concluded experimentally that, to obtain an accurate analytical model, the coupling effects were important to consider. Otherwise, the frequency response characteristics turned out to be erroneous [16].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Multidimensional Vibrations of Cable-Harnessed Beam Structures with Periodic Pattern: Modeling and Experiment

Yerrapragada

Agrawal

Salehian

2022

Shock and Vibration

Self Cite

View full text Add to dashboard Cite

The dynamics of space structures is significantly impacted by the presence of power and electronic cables. Robust physical model is essential to investigate how the host structure dynamics is influenced by cable harnessing. All the developed models only considered the decoupled bending motion. Initial studies by authors point out the importance of coordinate coupling in structures with straight longitudinal cable patterns. In this article, an experimentally validated mathematical model is developed to analyze the fully coupled dynamics of beam with a more complex cable wrapping pattern which is periodic in nature. The effects of cable wrapping pattern and geometry on the system dynamics are investigated through the proposed coupled model. Homogenization-based mathematical modeling is developed to obtain an analogous solid beam that represents the cable wrapped system. The energy expressions obtained for fundamental repeating segment are transferred into the global coordinates consisting of several periodic elements. The coupled partial differential equations (PDE) are obtained for an analogous solid structure. The advantage of the proposed analytical model over the existing models to analyze the vibratory motion of beam with complex cable wrapping pattern has been shown through experimental validation.

show abstract

Section: Resultsmentioning

confidence: 99%

“…e coefficients are a function of beam and cable parameters [19]. In these energy expressions, the terms higher than second order are ignored considering the small-scale vibrations.…”

Section: Development Of Energy Expressions Considering the Coupling Effectsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Multidimensional Vibrations of Cable-Harnessed Beam Structures with Periodic Pattern: Modeling and Experiment

Yerrapragada

Agrawal

Salehian

2022

Shock and Vibration

Self Cite

View full text Add to dashboard Cite

show abstract

“…The review suggested that future improvements in analytical models of tower-line systems are motivated and expected. Yerrapragada and Salehian (2019) studied the coupled dynamics of a cable-harnessed structure by analytical modeling, verifying the frequency response function (FRF’s) through experiments. Gattulli et al (2019) studied the cable and beam nonlinear interaction in a beam–cable–beam system.…”

Section: Introductionmentioning

confidence: 99%

Frequency-based decoupling and finite element model updating in vibration of cable–beam systems

Jalali

Rideout

2021

Journal of Vibration and Control

View full text Add to dashboard Cite

Interactions between cable and structure affect the modal properties of cabled structures such as overhead electricity transmission and distribution line systems. Modal properties of a single in-service pole are difficult to determine. A frequency response function of a pole impacted with a modal hammer will contain information about not only the pole but also the conductors and adjacent poles connected thereby. This article presents a generally applicable method to extract modal properties of a single structural element, within an interacting system of cables and structures, with particular application to electricity poles. A scalable experimental lab-scale pole-line consisting of a cantilever beam and stranded cable and a more complex system consisting of three cantilever beams and a stranded cable are used to validate the method. The frequency response function of a cantilever (“pole”) is predicted by substructural decoupling of measured cable dynamics (known frequency response function matrix) from the measured response of the assembled cable–beam system (known frequency response function matrix). Various amounts of sag can be present in the cable. Comparison of the estimated and directly obtained pole frequency response functions show good agreement, demonstrating that the method can be used in cabled structures to obtain modal properties of an individual structural element with the effects of cables and adjacent structural elements filtered out. A frequency response function–based finite element model updating is then proposed to overcome the practical limitation of accessing some components of the real-world system for mounting sensors. Frequency response functions corresponding to inaccessible points are generated based on the measured frequency response functions corresponding to accessible points. The results verify that the frequency response function–based finite element model updating can be used for substructural decoupling of systems in which some essential points, such as coupling points, are inaccessible for direct frequency response function measurement.

show abstract

Dynamic Analysis and Experimental Validation of Periodically Wrapped Cable-Harnessed Plate Structures

Agrawal

Salehian

2022

Exp Mech

View full text Add to dashboard Cite

Coupled Dynamics of Cable-Harnessed Structures: Experimental Validation

Cited by 9 publications

References 29 publications

Multidimensional Vibrations of Cable-Harnessed Beam Structures with Periodic Pattern: Modeling and Experiment

Multidimensional Vibrations of Cable-Harnessed Beam Structures with Periodic Pattern: Modeling and Experiment

Frequency-based decoupling and finite element model updating in vibration of cable–beam systems

Dynamic Analysis and Experimental Validation of Periodically Wrapped Cable-Harnessed Plate Structures

Contact Info

Product

Resources

About