Shape control and whole-life energy assessment of an ‘infinitely stiff’ prototype adaptive structure

Senatore, Gennaro; Duffour, Philippe; Winslow, Pete; Wise, Chris

doi:10.1088/1361-665x/aa8cb8

Cited by 63 publications

(48 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The results specific to the case study discussed in this paper have been generalised via the study of several spatial structures of complex layout providing both energy and monetary cost analysis (Senatore et al 2018a). A largescale prototype designed using the methodology formulated in this paper has been successfully tested (Senatore et al 2018c) validating key assumptions and numerical predictions.…”

Section: Discussionmentioning

confidence: 99%

“…The simplicity of the case study chosen here is deliberate to illustrate effectively all the steps of the design process through a useful visual aid. However, this method has been successfully applied to other realistic spatial configurations of complex layout (Senatore et al 2018a, b) and it has been successfully tested on a large-scale prototype adaptive structure (Senatore et al 2018c). It is assumed that the lateral stability of the roof system is provided separately (e.g.…”

Section: Illustrative Examplementioning

confidence: 99%

“…For the purpose of describing the design methodology in this paper, it is more convenient to work with a generic distribution which can easily be parametrised. The effect of the assumptions made here about the probability distribution are tested systematically in (Senatore et al 2018b) and via experimental testing on a large-scale adaptive structure prototype (Senatore et al 2018c). A normal distribution is often used to model natural random processes.…”

Section: Live Load Probability Distribution and Load Activation Thresmentioning

confidence: 99%

“…sensors and signal processing) is modelled here as a linear function of the number of structural elements and actuators. This assumption is based on empirical knowledge gained via experimental testing on a purpose-built large-scale adaptive truss prototype instrumented with strain gauge based sensors and fitted with mechanical linear actuators (Senatore et al 2018c). This fixed term is part of the total operational energy but it is usually substantially lower than the energy needed by the actuators to redirect internal forces and/or to control displacements.…”

Section: Actuator Work and Operational Energymentioning

confidence: 99%

See 3 more Smart Citations

Synthesis of minimum energy adaptive structures

Senatore

Duffour

Winslow

2019

Struct Multidisc Optim

Self Cite

114

View full text Add to dashboard Cite

This paper presents the formulation of a new methodology to design adaptive structures. This design method synthesises structural configurations that are optimum hybrids between a passive and an active structure. An optimisation scheme searches for an optimal material distribution and actuation layout to minimise the structure whole-life energy which consists of an embodied part in the material and an operational part for structural adaptation. Instead of using more material to cope with the effect of loads, here, strategically located active elements redirect the internal load path to homogenise the stresses and change the shape of the structure to keep deflections within required limits. To ensure the embodied energy saved this way is not used up to by actuation, the adaptive solution is designed to cope with ordinary loading events using only passive load-bearing capacity whilst relying on active control to deal with larger events that have a smaller probability of occurrence. The design methodology has been implemented for statically determinate and indeterminate reticular structures. However, the formulation is general and could be implemented to other structural types. Numerical simulations on a truss system case study confirm that substantial savings up to 50% of the whole-life energy can be achieved by the adaptive solution compared to a passive solution designed using state of the art optimisation methods.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Illustrative Examplementioning

confidence: 99%

Section: Live Load Probability Distribution and Load Activation Thresmentioning

confidence: 99%

Section: Actuator Work and Operational Energymentioning

confidence: 99%

See 2 more Smart Citations

Synthesis of minimum energy adaptive structures

Senatore

Duffour

Winslow

2019

Struct Multidisc Optim

Self Cite

114

View full text Add to dashboard Cite

show abstract

“…A main purpose of structural adaptivity is to optimize the structural response thereby saving material and energy consumption. Senatore et al (2011Senatore et al ( , 2013Senatore et al ( , 2018 developed a methodology for designing adaptive structures with optimized whole-life energy consumption considering both the embodied energy in the materials and an energy required for structural adaptation. In the presented cases, shape control is used to significantly increase stiffness (and diminish displacements) without prior information on the position, direction and magnitude of the external loads.…”

Section: Design Methods Of Adaptive Structures and Energy Optimizationmentioning

confidence: 99%

Key Structural Aspects for Adaptive Facades - Activity Progress from the EU-COST Action TU1403 ‘Structural’ Task Group

Bedon¹,

Honfí²,

Kozłowski³

et al. 2018

International Journal of Structural Glass and Advanced Material

View full text Add to dashboard Cite

show abstract

Investigation of a large‐scale adaptive concrete beam with integrated fluidic actuators

Burghardt

Kelleter

Bosch

et al. 2022

Civil Engineering Design

View full text Add to dashboard Cite

As the world population keeps growing, so does the demand for new construction. Considering material resources are limited, it will be unfeasible to meet such demand employing conventional construction methods. A new resource‐saving approach is provided by adaptive structures. Using sensors, actuators and control units, structures are enabled to adapt to loads, for example, to compensate for deformations. Since deformations are dominant in the design of bending‐stressed load‐bearing structures, adaptivity enables such structures to be realized using less material and achieving the same load‐bearing capacity in comparison to conventional designs. This article presents a concrete beam of typical building dimensions that compensates deflections by means of integrated fluidic actuators. These actuators offer the possibility of reacting optimally to general loading. The investigation is carried out on an approximately 4‐m‐long beam with integrated hydraulic actuators. To ensure the overall functionality, accurate dimensioning of the beam as well as the hydraulic system is mandatory. Analytical design of the beam and actuation system are carried out for predimensioning. Experimental testing validates the function and demonstrates that the adaptive beam works as predicted. A fully compensation in deflection is possible. Therefore, a significant increase in load‐bearing capacity is possible with the same material input compared to conventional beams.

show abstract

Shape control and whole-life energy assessment of an ‘infinitely stiff’ prototype adaptive structure

Cited by 63 publications

References 40 publications

Synthesis of minimum energy adaptive structures

Synthesis of minimum energy adaptive structures

Key Structural Aspects for Adaptive Facades - Activity Progress from the EU-COST Action TU1403 ‘Structural’ Task Group

Investigation of a large‐scale adaptive concrete beam with integrated fluidic actuators

Contact Info

Product

Resources

About