Boat Tower Vibration Dampening Apparatus

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Solution Overview

Problem

Boat towers experience vibrations and oscillations when in motion, leading to potential damage and an unpleasant user experience, particularly exacerbated by higher elevations and heavier attachments.

Innovation Solution

A vibration dampening apparatus is integrated into the boat tower's support frame, featuring a weight that moves freely within a tube, with shock dampeners and a fluid to absorb kinetic energy, reducing lateral vibrations by dissipating energy as heat.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Length of moving object

If the tower is elevated to increase tow point height, then the towing function is improved, but vibration and oscillation severity increases

Engineering Contradiction:

Improvetower elevationVSAvoidvibration resistance

Core Design Contradiction:

Length of moving objectVSStability of the object's composition

Solution Approach 1:

The vibration dampening apparatus is pre-installed on the tower structure before the tower is put into service. The weight is positioned within the tube and the shock dampeners are pre-configured to provide immediate vibration counteraction when the tower begins to oscillate, preventing vibration buildup rather than addressing it after occurrence.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The vibration dampening apparatus acts as an intermediary element between the tower structure and the external environment. The weight moving within the tube serves as a mediator that absorbs and dissipates vibrational energy, protecting the tower structure from the harmful effects of oscillation while allowing the tower to maintain its elevated position.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Quantity of substance

If heavier attachments are added to the tower, then storage and accessory mounting capacity is improved, but vibration and oscillation increases

Engineering Contradiction:

Improveattachment capacityVSAvoidoscillation resistance

Core Design Contradiction:

Quantity of substanceVSStability of the object's composition

Solution Approach 1:

The weight within the vibration dampening apparatus functions as a counterweight system. As the tower with its attachments experiences oscillation, the weight moves in opposition to the vibration direction, creating counteracting forces that reduce the net vibration impact on the structure and its heavy attachments.

Inventive Principle:

Principle #8Anti-weight (Counterweight)

Solution Approach 2:

The vibration dampening apparatus changes the dynamic parameters of the tower system by introducing a moving mass that alters the natural frequency and damping characteristics of the structure. This parameter change allows the tower to maintain higher attachment capacity while reducing vibration transmission to the hull.

Inventive Principle:

Principle #35Parameter changes

3Length of moving object

If taller towers are used to increase elevation, then tow point height is improved, but stress cracks and structural damage risk increases

Engineering Contradiction:

Improvetower heightVSAvoidstructural integrity

Core Design Contradiction:

Length of moving objectVSReliability

Solution Approach 1:

The vibration dampening apparatus provides beforehand cushioning by being installed on the tower structure in advance. The shock dampeners and weight mechanism are positioned to cushion against vibrational stresses before they can cause cumulative damage, protecting the tall tower structure from developing stress cracks during operation.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

4Stability of the object's composition

If the tower structure is made more robust to reduce vibration, then vibration resistance is improved, but device complexity and weight increase

Engineering Contradiction:

Improvevibration resistanceVSAvoidstructure complexity

Core Design Contradiction:

Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The vibration dampening apparatus replaces the need for an overly robust mechanical tower structure with a more elegant dynamic solution. Instead of making the entire tower structure heavier and more complex to resist vibration, a focused mechanical system with a moving weight and shock dampeners substitutes for the alternative approach of universal structural reinforcement.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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 mitigates lateral vibrations, reducing the risk of damage to the tower and the boat while enhancing user experience by minimizing stress and oscillations.

Implementation Method 1

Methodology Applied

Scientific EffectKinetic energy dissipation: Viscous Damping

Data Source

PatentUS9434450B1Vibration dampening apparatus for a boat tower

Publication Date: 2016.09.06 SWOR LOREN

AI summary

A boat tower, comprising a support frame comprising a first leg having an upper end and a lower end attachable to a first side of a boat, a second leg having an upper end and a lower end attachable to a second side of the boat, and a cross member extending from the upper end of the first leg to the upper end of the second leg; and a vibration dampening apparatus having a first end, a second end, and a longitudinal axis extending from the first end to the second end, and connected to the support frame in a substantially perpendicular relationship to a vertical plane which laterally bisects the cross member between the first leg and the second leg in a way that the vibration dampening apparatus mitigates lateral vibrations of the tower when the first and second legs are attached to the boat.