Seismic Simulation Platform with Dynamic Stabilizer
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Solution Overview
Problem
Current seismic simulation devices fail to faithfully reproduce the conditions of seismic events, leading to inadequate training for individuals on how to react during such events, as they either induce instability or do not accurately mimic the vibrations experienced during earthquakes.
Innovation Solution
An apparatus comprising a platform suspended by elastic elements, actuation members to induce vibrations, stabilizer members for stability, and damping elements to control oscillations, allowing for a realistic simulation of seismic events while maintaining stability during non-simulation periods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If elastic elements are used to suspend the platform, then the platform can simulate seismic vibrations, but the platform becomes unstable during normal use
Solution Approach 1:
The stabilizing member is designed to be selectively activatable, transitioning between a stable configuration (constraining the platform) and an unstable configuration (allowing free movement). This dynamic switching enables the system to adapt its stability characteristics based on operational mode, resolving the contradiction between simulation accuracy and platform stability.
Solution Approach 2:
The stabilizing member changes the effective stiffness parameter of the suspension system by switching between engaged and disengaged states. When engaged, it increases the system stiffness to provide stability; when disengaged, it allows the elastic elements to provide the necessary compliance for realistic seismic simulation.
2Stability of the object's composition
If stabilizing members are added to constrain the platform, then stability improves, but the ability to simulate seismic vibrations is reduced
Solution Approach 1:
The stabilizing member incorporates a mechanism to dynamically switch between constraint and freedom states, allowing the system to alternate between stability mode and simulation mode as needed, thus preventing the permanent compromise of vibration simulation capability.
Solution Approach 2:
The stabilizing member operates in periodic cycles of engagement and disengagement, alternating between providing stability during normal operations and allowing free vibration during simulation periods, thereby maintaining both functions over time.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The apparatus effectively recreates the sensations and conditions of seismic events, enhancing training by providing a realistic simulation that is both stable and safe for users, thereby improving preparedness and awareness of seismic risks.
Implementation Method 1
elastic elements associated to the platform and to the support plane and configured to keep the platform in suspension with respect to the support plane
Implementation Method 2
actuation members able to be selectively activated to induce, in the platform, vibrations suitable to simulate a seismic event on the latter
Implementation Method 3
at least one damping element provided to damp the oscillations induced on the platform
Implementation Method 4
at least one stabilizing member provided to constrain the position of the platform with respect to the support plane at least when the actuation members are de-activated
Data Source
Figure 1
Figure 2
AI summary
Apparatus to simulate seismic events comprising a platform (11) associated to a support plane (12), fixed at least in use; elastic elements (14) associated to said platform (11) and to said support plane (12) and configured to keep said platform (11) in suspension with respect to said support plane (12); actuation members (13) able to be selectively activated to induce, in said platform (11), vibrations suitable to simulate a seismic event on the latter (11); at least one stabilizing member (15) provided to constrain the position of said platform (11) with respect to said support plane (12) at least when said actuation members (13) are deactivated.