Vibration Monitoring of Daniel Maclise’s Wall Painting <i>Trafalgar</i>

Lithgow, Richard; Whittaker, Samuel; Bower, Tom; Corda, Katey; Woolley, Elizabeth; Higgitt, Catherine; Vlachou-Mogire, Constantina; Babington, Caroline

doi:10.1080/00393630.2020.1753359

Cited by 4 publications

(2 citation statements)

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“…To mitigate this risk, museums may opt to temporarily remove or relocate vulnerable objects while the work is being conducted. A significant example of this phenomenon has been identified at the Royal Gallery, Palace of Westminster, UK, where the restoration of the hall had direct effects on the monumental wall painting of Trafalgar [24]. The effective method employed to minimize the painting's exposure involved identifying the tools and building techniques that generated the most significant vibration levels, avoiding the use of those that produced excessive vibrations.…”

Section: Internal Sources Of Vibrationsmentioning

confidence: 99%

Human-Induced Vibrations on Museum Artefacts: Literature Review and Calculation Example

Saeed,

Giresini,

Niglio

et al. 2023

Proceedings of the 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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Museums and artworks are visited by thousands of people every day and they are usually located in the city centers, often near train and subway stations. Moreover, renovations of art galleries are sometimes necessary in order to improve their usability. For these reasons, visitors, construction work and rail and road traffic constitute the most common sources of vibration in art galleries. Vibrations may potentially interfere with the usability of art objects and may be potentially dangerous for their preservation. Despite these issues, the researchers are mainly focused on mitigating the risk related to earthquake-induced vibrations, while the studies on the vulnerability of artistic heritage exposed to human-induced vibrations are still few and fragmented. Reference guidelines or codes to address this problem are not available at the moment. Therefore, the purpose of this article is to propose a literature review on that topic and to provide an example of calculation for a selected case study. This work is conducted in the framework of a larger study with the goal of understanding these phenomena and filling the lack of proper guidelines, for example, setting values of acceptable human-induced vibration levels.

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Section: Internal Sources Of Vibrationsmentioning

confidence: 99%

Human-Induced Vibrations on Museum Artefacts: Literature Review and Calculation Example

Saeed,

Giresini,

Niglio

et al. 2023

Proceedings of the 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

View full text Add to dashboard Cite

show abstract

“…In situ dynamic investigations are typically made with accelerometers or geophones positioned at critical locations on or within the structure, hence enabling effective signal processing to estimate its dynamic properties [26]. This "System Identification" process requires different setups for cross-correlation during the signal processing of the captured vibrations.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Characterisation of a Heritage Structure with Limited Accessibility Using Ambient Vibrations

et al. 2023

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Historic Cairo has been a UNESCO World Heritage Site since 1979. It has more than 600 historic structures, which require extensive studies to sustain their cultural, religious, and economic values. The main aim of this paper is to undertake dynamic investigation tests for the dome of Fatima Khatun, a historic mausoleum in Historic Cairo dating back to the 13th century and consisting of mainly bricks and stones. The challenge was that the structure was difficult to access, and only a small portion of the top was accessible for the attachment of accelerometers. Current dynamic identification procedures typically adopt methods in which the sensors are arranged at optimal locations and permit direct assessment of the natural frequencies, mode shapes, and damping ratios of a structure. Approaches that allow for the evaluation of dynamic response for structures with limited accessibility are lacking. To this end, in addition to in situ dynamic investigation tests, a numerical model was created based on available architectural, structural, and material documentation to obtain detailed insight into the dominant modes of vibration. The free vibration analysis of the numerical model identified the dynamic properties of the structure using reasonable assumptions on boundary conditions. System identification, which was carried out using in situ dynamic investigation tests and input from modelling, captured three experimental natural frequencies of the structure with their mode shapes and damping ratios. The approach proposed in this study informs and directs structural restoration for the mausoleum and can be used for other heritage structures located in congested historic sites.

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