Ship Access Ramp Bridge Plate With Polymer Noise Damping
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Ship access ramps generate noise, which is a problem in city centers where noise levels are regulated by law and affects the working environment for crew and vehicle drivers.
Innovation Solution
The use of polymeric and rubber materials for noise cancelling means in the contact area between the bridge plate and the ship, which can be securely fastened to the ship or bridge plate, reducing or eliminating noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a ship access ramp is used to allow vehicle access, then cargo loading/unloading efficiency is improved, but noise is generated in the contact area
Solution Approach 1:
A bridge plate is introduced as an intermediary component between the ship access ramp and the ship's hull. This bridge plate absorbs and dampens the noise generated during vehicle loading and unloading operations, while still maintaining the structural connection and functionality of the ramp system.
Solution Approach 2:
The material properties of the bridge plate are specifically selected to change the acoustic parameters of the contact area. By using materials with appropriate damping characteristics, the noise generation is reduced while maintaining the mechanical strength required for cargo operations.
2Object-generated harmful factors
If noise cancelling means are added to reduce noise, then noise levels are reduced, but device complexity increases
Solution Approach 1:
The bridge plate serves multiple functions simultaneously: it provides structural support for the ramp, acts as a noise-dampening element, and facilitates the connection between the ramp and ship hull. This multi-functionality reduces the need for separate noise cancellation devices, thereby limiting the increase in device complexity.
3Object-generated harmful factors
If noise cancelling means are securely fastened to the ship or bridge plate, then noise cancellation effectiveness is improved, but ease of manufacture decreases
Solution Approach 1:
The bridge plate is designed with pre-integrated noise cancelling features or pre-attached damping materials during the manufacturing process. This preliminary incorporation of noise cancellation capabilities ensures effectiveness while maintaining ease of manufacture, as the noise reduction features are built-in rather than requiring complex post-installation procedures.
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 noise cancelling materials effectively absorb noise, ensuring compliance with noise regulations and improving the working environment for crew and drivers.
Implementation Method 1
The noise cancelling means is made of one or more of polymeric material and rubber material. An advantage is that polymeric material and rubber material are efficient noise cancelling materials.
Data Source
Figure 1
Figure 2
Figure 3a~3b
AI summary
The present invention relates to a ship (100) comprising a ship access ramp (110), said ship access ramp (110) having a first end portion (110a) pivotably attached to the ship (100) and a second free end. Said ship access ramp (110b) further comprises a bridge plate (130), said bridge plate (130) having a first end portion (130a) pivotably attached to said first end portion (110a) of said ship access ramp (110) and a second free end (130b). Further, said bridge plate (130) and/or said ship (100) is provided with noise cancelling means (150) in a at least a portion of a contact area between said second free end (130b) of said bridge plate (130) and said ship (100). The noise cancelling means (150) is made of one or more of polymeric material and rubber material.