Cabin Blocking Device for Cable Transport Oscillation Control
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Solution Overview
Problem
Passenger cable transportation systems experience oscillations and noise due to passenger boarding and landing, causing instability and discomfort, especially in curved paths where cabins are suspended with clearance from lateral guides.
Innovation Solution
A blocking device, such as a pusher integrated into the station or lateral guide, selectively pushes the cabin against a lateral guide to prevent lateral rolling oscillations, ensuring stable boarding and landing without interrupting the cabin's advancement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a clearance is provided between the cabin and lateral guides to prevent the cabin from becoming stuck, then the cabin can advance smoothly through the station, but oscillations occur during boarding and landing causing the cabin to hit against the guides
Solution Approach 1:
The blocking device is activated before boarding and landing operations begin to prevent oscillations from occurring in the first place. By preemptively blocking lateral movements and rolling oscillations, the system eliminates the harmful effect before it can manifest, allowing smooth cabin advancement without subsequent oscillations or noise.
Solution Approach 2:
The blocking device is designed to be dynamic rather than fixed, allowing it to adapt its blocking action based on the operational phase. During boarding and landing, the device engages to prevent oscillations, while during normal advancement, it allows the clearance to function. This dynamic adjustment resolves the contradiction between smooth advancement and oscillation prevention.
2Ease of operation
If the cabin is temporarily decoupled from the hauling cable at stations, then boarding and landing can occur more easily, but the cabin remains suspended from the ground causing oscillating movement
Solution Approach 1:
The blocking device is activated in advance during the decoupling phase to prevent oscillations before they can occur. By blocking lateral movements and rolling oscillations preemptively, the system maintains cabin stability even though the cabin is decoupled from the hauling cable and suspended from the ground during boarding and landing operations.
3Stability of the object's composition
If a blocking device is added to prevent oscillations, then cabin stability improves during boarding and landing, but device complexity increases
Solution Approach 1:
The blocking device is designed to perform multiple functions: blocking lateral movements, preventing rolling oscillations, and allowing normal advancement when not activated. This multi-functionality reduces the need for separate devices for each function, thereby limiting the increase in overall device complexity while achieving improved cabin stability.
Solution Approach 2:
The blocking device is designed to activate and deactivate automatically based on operational conditions, reducing the need for complex external control systems. By making the device self-regulating, the system improves cabin stability without proportionally increasing device complexity through additional control mechanisms.
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 effectively prevents oscillations and noise, providing a stable and secure passenger experience by maintaining the cabin's alignment with the guides during boarding and landing, without requiring modifications to existing cabins.
Implementation Method 1
a blocking device, such as a pusher integrated into the station or lateral guide, selectively pushes the cabin against a lateral guide to prevent lateral rolling oscillations
Data Source
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AI summary
A passenger cable transportation system, the cable system comprising: - at least one cabin for transporting passengers; - at least one station for passengers boarding and landing from the cabin; - two lateral guides facing each other and configured for guiding the cabin into the station along an advancing direction, wherein there is a clearance between the lateral guides and the cabin; - at least one blocking device configured for blocking the cabin in relation to the lateral guides at least along a direction transversal to the advancing direction level with at least one part of the station.