Protective Grille with Damping Spacers to Reduce Explosive Damage
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing object protection grids for ventilation systems face challenges in balancing burglary resistance with flow resistance and structural rigidity, particularly in the context of explosive attacks, where they often suffer from extensive damage due to the lack of effective energy absorption mechanisms.
Innovation Solution
The implementation of a protective grille with angled lamellae and pillars, where spacer elements designed as damping elements with ductile or impact-resistant materials, featuring lateral or helical recesses, absorb energy input from explosive forces, reducing damage by allowing slats to deform and dissipate loads into a frame anchored in the building.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If traditional rigid spacer elements are used to space lamellae, then structural rigidity is improved, but damage extent under explosive loads increases
Solution Approach 1:
The spacer elements are designed with changeable rigidity characteristics - rigid under normal conditions to maintain structural stability, but capable of deforming under explosive loads to absorb energy and reduce damage
Solution Approach 2:
The spacer elements are pre-positioned between lamellae to provide cushioning and energy absorption capacity before explosive loads occur, allowing them to deform and absorb impact energy during attacks
2Reliability
If more spacer elements are added between lamellae, then anti-explosive effectiveness is improved, but device complexity increases
Solution Approach 1:
The spacer elements perform multiple functions simultaneously: spacing lamellae apart, providing structural support, and absorbing explosive energy through deformation, thereby improving anti-explosive effectiveness without increasing the number of different component types
Solution Approach 2:
The spacing function and energy absorption function are merged into a single component - the damper element serves both to maintain lamellae spacing and to absorb explosive energy through its deformable structure
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
This design enhances burglary resistance while maintaining low flow resistance and structural integrity by absorbing energy through deformation of damping elements, reducing the extent of damage from explosive loads and maintaining a constant opening cross-section.
Implementation Method 1
a damping element which, in addition to or as an alternative to plastic deformation, is able to absorb energy through internal friction
Implementation Method 2
A damping element is to be understood as meaning an element which is provided for absorbing energy
Data Source
Figure 1
Figure 2
Figure 3
AI summary
FIELD OF THE INVENTION The present invention relates to an object protection grille, in particular for air inlet or outlet openings in ventilation systems, with a plurality of pillars, with a large number of lamellae spaced apart from one another and running at an angle to the pillars, the lamellae having recesses through which the pillars run , With spacer elements provided between the slats for spacing the slats, at least one of the spacer elements being designed as a damping element. The present invention also relates to a method for its production.