Robust monitoring and vibration mitigation for easel paintings

稳定的监测和振动缓解的油画架上的油画暴露在振动的影响是累积的，变化可能是不可见的，直到点的灾难性故障是达到。随着遗产机构寻求以新的方式利用他们的藏品来吸引观众并提高收入，这一问题越来越受到关注，但策展人和保护人员几乎没有可靠的研究来确定安全限制。经常使用固定在建筑结构上的实时监测系统，如果振动超过阈值水平，则触发警报，但阈值的选择通常与暴露的对象无关。该项目将通过将工程方法与保护和策展实践的专业知识相结合来解决这些限制，以开发一种替代方法。这需要开发一个计算机模型来预测单个绘画对振动输入的动态响应，该模型考虑到绘画是如何悬挂的以及绘画与墙壁的相互作用，以及使用有限数量的物理传感器和“虚拟传感器”网络来推断墙壁上每个点处所经历的振动的数学过程。我们的目标是创建一个实用的实时监控和警报系统的基础上，个人绘画本身的反应。该框架还可以帮助制定个人绘画的缓解策略。虽然每幅画都是独一无二的，墙壁也各不相同，但与NG一起开发的方法将适应这种变化，以确保广泛的适用性：底层程序将被共享，允许其他遗产机构建立自己的系统

Robust monitoring and vibration mitigation for easel paintings The impact of exposure of canvas easel paintings to vibration is cumulative and changes may not be visible until the point of catastrophic failure is reached. It is of increasing concern as heritage institutions seek to use their collections in new ways to engage audiences and raise income, yet curators and conservators have little reliable research from which to determine safe limits. Real-time monitoring systems fixed to a building structure are often used, which trigger alerts if vibration breaches a threshold level, but choice of the threshold is generally not linked to the objects being exposed. This project will address these limitations by combining engineering methods with expertise from conservation and curatorial practice to develop an alternative approach. This requires development of a computer model to predict the dynamic response of individual paintings to a vibration input that takes into account how the paintings are hung and the painting-wall interaction, together with a mathematical process to infer the vibration experienced at every point on a wall using a limited number of physical sensors and a 'virtual sensor' network. The aim is to create from this a practical real-time monitoring and alert system based on the response of individual paintings themselves. The framework can also help develop mitigation strategies for individual paintings. Although every painting is unique, walls vary etc, the approach developed with NG will accommodate such variability to ensure wide applicability: the underlying programs will be shared allowing other heritage institutions to build their own systems