Structural Movement Control
Structural Movement Control - Related Videos
06:58
A Structured Rehabilitation Protocol for Improved Multifunctional Prosthetic Control: A Case Study
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Cited by 34 •
2015
As prosthetic development moves towards the goal of natural control, harnessing amputees’ inherent ability to learn new motor skills may enable proficiency. This manuscript describes a structured rehabilitation protocol, which includes imitation, repetition, and reinforcement learning strategies, for improved multifunctional prosthetic control.
12:06
The Structure of Skilled Forelimb Reaching in the Rat: A Movement Rating Scale
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Cited by 54 •
2008
The skilled reaching scale divides the movement by a forelimb in a reach for food act into composite elements each of which are evaluated with a three-point scale. The rating scale is described for a normal rat and can be applied toward evaluating neurological motor disorders.
08:06
Eye Movement Monitoring of Memory
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Cited by 10 •
2010
Eye movement monitoring (or eye tracking) reveals where in space the eyes linger, when and for how long. Here, we demonstrate how eye tracking can be used to investigate the integrity of memory in multiple participant populations, without requiring verbal, or otherwise explicit, reports.
00:51
Anatomical Movements
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2023
Anatomical movements refer to the various actions or motions that can be performed by the body's joints and muscles. These movements are described using specific terms to provide a standardized way of discussing and understanding the range of motion at different joints. Here are some common anatomical movements: Flexion and extension motions are in the sagittal (anterior–posterior) plane of motion. These movements take place at the shoulder, hip, elbow, knee, wrist, metacarpophalangeal,...
00:08
Single Cell Durotaxis Assay for Assessing Mechanical Control of Cellular Movement and Related Signaling Events
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Cited by 6 •
2019
Mechanical forces are important for controlling cell migration. This protocol demonstrates the use of elastic hydrogels that can be deformed using a glass micropipette and a micromanipulator to stimulate cells with a local stiffness gradient to elicit changes in cell structure and migration.
FAQs
Controlled motion allows a structure to accommodate displacement while limiting the forces that movement creates. Movement joints and flexible connections provide room for expansion or relative movement, while bearings transfer forces without locking connected components together. This approach reduces stress concentrations, cracking, fatigue, and serviceability problems more effectively than treating all movement as something to eliminate.
These components address movement in different ways. Movement joints provide separation for expected displacement, and bearings allow controlled relative motion while transferring forces. Flexible connections accommodate movement between connected systems. Dampers reduce response by dissipating energy, making them particularly relevant where repeated or dynamic movement could otherwise increase structural stress, vibration, or serviceability concerns.
Tuned mass systems help manage dynamic response by shifting a structure’s response away from damaging resonance. Resonance can amplify movement when structural motion interacts unfavorably with vibration. By targeting that response, a tuned mass system can reduce harmful displacement and vibration effects. This supports the continued functionality of buildings, bridges, and other structures exposed to dynamic actions.
The strategy must reflect the movement source and the structural consequences of that movement. Thermal expansion, wind, earthquakes, vibration, and changing loads can produce different demands, while connected systems may require protection from relative displacement. Engineers also consider stress, fatigue, cracking, noise, and serviceability risks so the selected device or system addresses both safety and long-term function.
Application begins by identifying expected movement sources and determining how they may affect the structure and connected systems. Engineers then select suitable combinations of joints, bearings, flexible connections, dampers, or tuned mass systems to accommodate motion, transfer forces, or dissipate energy. Monitoring and maintenance remain part of the process, and observed performance can guide later retrofit decisions.
Structural movement control applies to buildings, bridges, and other structures whose performance may be affected by environmental actions, vibration, or changing loads. Its outcomes include reduced stress, fatigue, cracking, noise, and serviceability problems. The approach also supports resilient design by protecting connected systems and providing a basis for monitoring, maintenance, and retrofit planning throughout a structure’s design life.