Impact Test Device With Control Rail And Catch Mechanism
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Solution Overview
Problem
Conventional impact test systems are limited in simulating upward impact forces and often require large spaces or controlled environments, and they may not accurately represent the behavior of full-scale structures due to their design and the use of small test specimens.
Innovation Solution
An impact test device with a control rail and a carriage assembly that is movable in multiple directions, including upward and downward, featuring a catch mechanism that engages and disengages from the rail to control movement, allowing for precise control of impact forces and orientations, and a drive mechanism to propel the carriage assembly towards an impact surface without pre-contact forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional impact test systems use drop towers, pendulum impactors, or cantilever spring impactors, then impact tests can be performed, but the systems occupy a lot of space and require controlled environments
Solution Approach 1:
The patent changes the fundamental parameters of the impact test system by transitioning from large-scale drop towers and pendulum mechanisms to a compact linear actuator-based carriage system. The control rail and carriage assembly enable impact testing in a fraction of the space required by conventional systems, while the linear actuator provides precise control of impact parameters without requiring controlled environmental conditions.
Solution Approach 2:
The patent replaces complex mechanical systems (drop towers, pendulum mechanisms, cantilever springs) with a simpler linear actuator and carriage assembly. This substitution eliminates the need for large structural components and complex mechanical linkages, significantly reducing the space occupation while maintaining impact test functionality.
2Productivity
If conventional impact test systems use small test specimens or coupons, then impact tests can be performed, but the specimens may not behave in the same manner as full-scale structures
Solution Approach 1:
The patent employs a dynamically controllable carriage assembly that can be accelerated to precise velocities and positioned at exact locations along the control rail. This dynamic control enables the application of realistic impact forces to full-scale structures, capturing their true impact response behavior rather than scaled-down coupon behavior. The linear actuator provides programmable acceleration profiles that simulate real-world impact scenarios.
Solution Approach 2:
The patent creates a universal testing platform that can accommodate full-scale structures of various sizes and configurations along the control rail. The system is not limited to small coupons but can test actual structural components in their full scale, while the adjustable carriage assembly provides multi-functionality for different impact scenarios and locations.
3Adaptability or versatility
If conventional impact test systems are designed for downward impact only, then gravity-assisted impact can be achieved, but upward impact forces cannot be simulated
Solution Approach 1:
The patent replaces gravity-dependent impact mechanisms with a linear actuator-driven carriage system. This substitution enables the carriage to be propelled in any direction along the control rail, including upward directions against gravity. The linear actuator provides direct mechanical force generation without relying on gravitational acceleration, enabling versatile impact direction control while maintaining sufficient impact power.
Solution Approach 2:
The patent employs a dynamically controllable carriage assembly that can be accelerated in multiple directions along the control rail. The linear actuator provides programmable acceleration profiles that enable the carriage to achieve required impact velocities in any direction, including upward directions. This dynamic control system replaces the static gravity-dependent acceleration of conventional systems.
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
Enables impact tests to be performed in various orientations and directions, including upward, with direct inertial force application, reducing the need for large spaces and controlled environments, and providing more accurate simulations of real-world impact forces on full-scale structures.
Implementation Method 1
direct inertial force application
Implementation Method 2
a catch mechanism that engages and disengages from the rail to control movement
Data Source
AI summary
An impact test device includes a control rail and a carriage assembly moveable along the control rail in a plurality of directions including a first direction and a second direction opposite the first direction. The carriage assembly includes a catch configured to engage the control rail to control movement of the carriage assembly. Movement of the carriage assembly in the first direction urges the catch to disengage from the control rail, and movement of the carriage assembly in the second direction urges the catch to engage the control rail.