Maglev Vehicle Deflectable Suspension Frame for Tight Curves
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Solution Overview
Problem
Existing magnetic levitation train systems have limited mobility of drive and support devices relative to the car body, restricting the ability to navigate small radii and featuring complex structures that compromise driving comfort and operational efficiency.
Innovation Solution
A vehicle design with a deflectable suspension frame and integrated pendulum system, connected via a spring-damper system, allows the drive and support devices to follow curved tracks without bending the rigid car body, ensuring comfortable travel and precise alignment, while a symmetrical four-bar linkage maintains horizontal stability and absorbs vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the drive and support system is rigidly attached to the car body, then structural strength is maintained, but the vehicle cannot navigate small track radii and passenger comfort deteriorates
Solution Approach 1:
The drive and support system is divided into separate modules that can move independently relative to the car body. Each module is connected through suspension elements, allowing individual movement while maintaining overall structural integrity. This segmentation enables the system to adapt to curved tracks without compromising the rigidity of the car body itself.
Solution Approach 2:
The suspension system incorporates movable connections between the drive modules and car body, transforming the rigid static attachment into a dynamic system. The spring-damper elements allow controlled movement and deflection, enabling the drive system to follow track curves while the car body remains stable. This dynamic connection resolves the contradiction between adaptability and structural rigidity.
2Adaptability or versatility
If the drive and support system is made movable relative to the car body, then small track radii can be navigated, but the suspension device becomes complex
Solution Approach 1:
The suspension and guidance functions are merged into a single integrated suspension device. The same mechanical elements that provide suspension also enable lateral movement and track following. This functional merging reduces the number of separate components needed, simplifying the overall device structure while maintaining the required mobility for navigating small track radii.
Solution Approach 2:
The spring-damper elements serve multiple functions simultaneously: they provide suspension, allow lateral deflection for curve navigation, and guide the drive system along the track. This multi-functionality reduces the need for dedicated components for each function, thereby reducing overall device complexity while achieving the desired mobility.
3Ease of operation
If spring-damper systems are added to improve comfort, then passenger comfort increases, but device complexity increases
Solution Approach 1:
The spring-damper elements are integrated into the existing suspension device structure rather than being added as separate comfort systems. The same mechanical components that enable drive system mobility also provide vibration damping and comfort. This merging approach delivers passenger comfort benefits without proportionally increasing device complexity, as the comfort function is achieved through the primary suspension elements already required for mobility.
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 mobility and comfort by allowing the vehicle to navigate tight curves with reduced centrifugal forces and tilting, maintaining horizontal stability and absorbing vibrations effectively, thus improving the overall operational efficiency and driving experience.
Implementation Method 1
a spring-damper system is arranged between the levitation frame and the drive and support system
Implementation Method 2
a spring-damper system is arranged between the levitation frame and the drive and support system
Implementation Method 3
The levitation frame, preferably integrated with a pendulum, enables the drive and support system to follow a track even in curves
Data Source
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AI summary
The present invention relates to a vehicle for a magnetic levitation track having a coach body (1) and a propulsion and supporting device (4) as well as at least one levitation frame (2) fastened on the coach body (1) and the propulsion and supporting device (4). The levitation frame (2) can be deflected transversely to the longitudinal axis of the propulsion and supporting device (4) and a spring suspension system (12, 14, 20, 21) is arranged between the levitation frame (2) and propulsion and supporting device (4). The levitation frame (2) has a traverse (13) and a carrier (17) which are connected to each other in an articulated fashion.