L-Shaped Bogie Carrier Mounting for Rail Antenna Vibration Relief
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Solution Overview
Problem
Existing carrier assemblies for rail vehicles introduce large dynamic forces and vibrations into the bogie frame, leading to excessive loading and potential instability, particularly when antennas or other components are positioned away from the wheels.
Innovation Solution
A carrier assembly with an L-shaped configuration, connected via pendulum supports to the bogie frame's longitudinal members and supported on additional bogie components, providing mechanical decoupling and elastic mounting to reduce dynamic loading and stabilize the assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the carrier assembly is rigidly connected to the bogie frame, then the antenna can be securely positioned, but large dynamic forces and vibrations are introduced into the bogie frame
Solution Approach 1:
A pendulum support element is introduced as an intermediary between the carrier assembly and the bogie frame. This pendulum support acts as a mechanical decoupling element that allows the antenna to be securely positioned while filtering out and reducing the transmission of dynamic forces and vibrations to the bogie frame, thus resolving the contradiction between secure positioning and harmful dynamic forces.
2Stability of the object's composition
If the carrier assembly is rigidly connected to the bogie frame, then structural stability is maintained, but the bogie frame experiences excessive loading
Solution Approach 1:
The pendulum support serves as a mechanical intermediary that decouples the carrier assembly from the bogie frame. It maintains structural stability by providing a defined mounting position while simultaneously reducing the transmission of dynamic forces and vibrations to the bogie frame, thus resolving the contradiction between structural stability and excessive loading.
3Adaptability or versatility
If antennas are positioned away from the wheels (e.g., in the center of the bogie), then data transfer with infrastructure is improved, but the carrier assembly creates larger dynamic moments of inertia
Solution Approach 1:
The pendulum support acts as a mechanical decoupling intermediary that enables the carrier assembly with antennas to be positioned in optimal locations (such as the center of the bogie) for improved data transfer capability, while simultaneously reducing the transmission of dynamic moments of inertia to the bogie frame by filtering out vibrations and dynamic forces.
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 solution achieves reduced vibration excitation, lower moments of inertia, and improved stability by distributing force effectively, while maintaining strength and reducing mass without compromising structural integrity.
Implementation Method 1
a first longitudinal member (9) of the bogie frame (8) and can additionally be supported in an articulated and elastic manner at least on the bogie frame (8) or on at least one further bogie component (6), wherein the carrier apparatus (29) can be connected to the at least one first longitudinal member (9) via a pendulum support (30)
Implementation Method 2
the bogie frame (8) can have a lighter construction because the carrier apparatus (29) is loaded mechanically, in particular dynamically, only moderately owing to an elastic mounting on the first longitudinal member (9)
Data Source
AI summary
A carrier assembly for a chassis of a rail vehicle, i.e., for a vehicle-side, railway safety or control device, i.e., an antenna carrier assembly connectable to a chassis frame, includes a carrier device that is connectable in an articulated and elastic manner to at least one first longitudinal member of the chassis frame and is additionally supportable in an articulated and elastic manner on at least the chassis frame or at least one further chassis component, wherein the carrier device is connectable to the at least first longitudinal member via a pendulum support, and the carrier device is L-shaped, where a first limb of the carrier device can be connected to the at least first longitudinal member via the pendulum support such that a stable mounting of the carrier device is made possible and stress is relieved from the chassis frame when the carrier device is connected to the chassis frame.