Movable Test Device Damping Means for Dynamic Vehicle Testing
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Solution Overview
Problem
Existing test devices for dynamic vehicle testing often experience rebound and damage due to pneumatic suspension systems that fail to effectively dampen vibrations and shocks, leading to potential collisions between the test vehicle and the test device.
Innovation Solution
A mobile test device equipped with damping means, such as a combined spring-damper system, which dissipates energy and reduces the likelihood of rebound by integrating damping mechanisms into the suspension system, allowing for improved traction and reduced risk of collision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If pneumatic suspension means are used to support the platform, then the device can adjust its height and absorb shocks, but the pneumatic suspension causes rebound when a shock is applied, leading to potential collision between the platform and the test vehicle
Solution Approach 1:
A damping means is introduced as an intermediary element between the pneumatic suspension means and the support platform. This damping means acts as a mediator that allows the pneumatic suspension to perform its shock absorption function while simultaneously controlling the rebound motion that would otherwise cause collision with the test vehicle.
Solution Approach 2:
The damping means is pre-configured in the suspension system to provide beforehand cushioning against rebound motions. By anticipating the rebound effect of pneumatic suspension under shock conditions, the damping means is positioned and configured to counteract this rebound before it can cause harmful collisions with the test vehicle.
2Length of moving object
If the test device is designed to be compact to pass under test vehicles, then the risk of collision is reduced, but the device must still effectively dampen vibrations and shocks during dynamic testing
Solution Approach 1:
The damping function is localized to specific components within the running gear assembly, particularly at the interface between the support platform and the wheel assembly. By concentrating the damping function in localized areas rather than requiring a completely redesigned compact structure, the device maintains its compact height while effectively addressing vibrations and shocks at their source.
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 damping means effectively minimize vibrations and shocks, preventing rebounds and ensuring the test device remains stable and compact, allowing it to pass under test vehicles without collision, thereby enhancing safety and efficiency during dynamic testing.
Implementation Method 1
damping means arranged to dampen relative movement between at least one of the wheels and the support platform
Implementation Method 2
damping means are designed to dissipate energy during the movement of the platform relative to the wheel
Implementation Method 3
the spring effect is eliminated
Data Source
Figure 1~3
AI summary
The invention relates to a movable test device for dynamic vehicle testing, intended to support a target object for the test vehicle, said device comprising: a frame comprising a support plate arranged to receive the target object; a plurality of running gears, each comprising at least one wheel, arranged to roll on a rolling surface formed by a test track; and propulsion means linked to at least one of the wheels in order to propel the device on the rolling surface, characterised in that the test device comprises damping means arranged to damp a relative movement between at least one of the wheels and the support plate.