Non-Impact Load Stability Testing via Acceleration Pulses

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Solution Overview

Problem

Existing methods for testing the rigidity and stability of loads during transport are inefficient due to the large size and high energy consumption of acceleration test machines, which are not well-suited for simulating the horizontal inertia forces experienced during road and rail transport.

Innovation Solution

A non-impact method and device that subject a carriage with loads to a predetermined acceleration single pulse profile, allowing displacement in both directions, reducing the required space and energy consumption, and using less powerful motors to simulate transport conditions efficiently.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional acceleration test machines are used to test load stability, then the testing accuracy and reliability are improved, but the device size and energy consumption increase significantly

Engineering Contradiction:
Improvetesting accuracyVSAvoidenergy consumption
Core Design Contradiction:
ReliabilityVSUse of energy by stationary object

Solution Approach 1:

The patent applies periodic acceleration pulses instead of continuous high-speed motion. The carriage undergoes repeated acceleration cycles at controlled amplitudes, creating inertial forces that simulate transport conditions without requiring sustained high velocities. This periodic action reduces average energy consumption while maintaining testing reliability through cumulative inertial loading effects.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The patent changes the testing parameters by using lower maximum speeds combined with repeated acceleration pulses. Instead of achieving high continuous speeds, the system uses multiple lower-amplitude acceleration cycles that accumulate to produce equivalent inertial testing effects. This parameter transformation reduces energy requirements while preserving test validity.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If traditional acceleration test machines are used to test load stability, then the testing accuracy and reliability are improved, but the device size and complexity increase

Engineering Contradiction:
Improvetesting accuracyVSAvoiddevice size
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent uses periodic acceleration pulses to achieve testing objectives in a compact space. By repeatedly accelerating the carriage at controlled amplitudes along a short track, the system generates sufficient inertial forces to test load stability without requiring the long travel distances needed for traditional high-speed methods. This reduces device size while maintaining testing reliability.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The patent employs dynamic acceleration profiles with variable amplitudes and frequencies. The carriage motion is controlled through programmable acceleration pulses that adapt to testing requirements, allowing reliable load stability assessment in a compact configuration. This dynamic approach replaces the static, space-consuming design of traditional machines.

Inventive Principle:
Principle #15Dynamics

3Productivity

If high speed and acceleration profiles are used in testing, then the testing effectiveness is improved, but the energy consumption and device size increase

Engineering Contradiction:
Improvetesting effectivenessVSAvoidenergy consumption
Core Design Contradiction:
ProductivityVSUse of energy by moving object

Solution Approach 1:

The patent achieves testing effectiveness through periodic acceleration pulses rather than single high-speed runs. Multiple controlled acceleration cycles at moderate speeds accumulate inertial loading effects equivalent to or exceeding traditional high-speed tests. This approach maintains productivity while significantly reducing peak and average energy consumption.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The patent uses dynamically controlled acceleration profiles that optimize energy efficiency. By programming variable amplitude pulses with appropriate frequency and duration, the system achieves effective load stability testing without requiring sustained high speeds. This dynamic control maintains testing productivity while minimizing energy requirements.

Inventive Principle:
Principle #15Dynamics

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 method and device effectively test the rigidity and stability of loads in a compact, cost-effective, and versatile manner, aligning with the EUMOS 40509 standard, while minimizing deformation and energy use, and are suitable for various types of tests.

Implementation Method 1

The test thus simulates horizontal inertia forces similar to the ones occurring during transport, especially road and rail transport

Methodology Applied
Scientific EffectInertia: Inertia

Data Source

PatentEP3736554B1Non-impact methods and devices for testing the rigidity and / or the stability of one or more loads
Publication Date: 2023.07.12 SAFE LOAD TESTING TECH SL
  • EP3736554B1 patent drawingFigure 1
  • EP3736554B1 patent drawingFigure 2a~2b
  • EP3736554B1 patent drawingFigure 2c~3a

AI summary

According to a first aspect, a non-impact method for testing the rigidity and / or the stability of one or more loads placed on a carriage by subjecting the carriage to a predetermined acceleration single pulse profile or a corresponding velocity profile is provided. The method comprises: displacing the carriage in a first direction. The method further comprises: accelerating the carriage according to the predetermined acceleration single pulse profile such that along part of the predetermined acceleration single pulse profile the carriage is displaced in a second direction opposite to the first direction. A device for testing stability and / or rigidity of one or more loads is also provided.