Non-Rotating Dampening Material in Roller Trucks for CT Gantry Vibration
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Solution Overview
Problem
Current CT scanner systems face challenges in effectively damping vibrations caused by the rotation of the gantry, which can lead to faulty image information due to interference with operational frequencies, especially at higher RPMs and varied speeds, despite previous attempts to shift vibration frequencies or use vibration-damping materials.
Innovation Solution
The introduction of a roller truck system with non-rotating dampening materials, such as fiberglass or vinyl, integrated into the roller truck's structure to absorb and mitigate vibration frequencies, allowing for effective dampening and reduced energy transfer between the rotating gantry and the support frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If vibration-damping materials are used in the roller truck, then vibration transfer is reduced, but the energy required to rotate the gantry increases
Solution Approach 1:
The patent modifies the physical parameters of the dampening material by making it rotatable along with the gantry, changing its state from stationary to rotating. This allows the material to maintain its vibration-damping properties while rotating, rather than creating friction against a fixed surface
Solution Approach 2:
The dampening material is designed to rotate dynamically with the gantry rather than remaining static. This dynamic configuration reduces friction and energy requirements while maintaining vibration damping effectiveness throughout the rotation cycle
2Use of energy by moving object
If the dampening material rotates with the gantry, then friction and energy requirements are reduced, but the effectiveness of vibration dampening may be compromised
Solution Approach 1:
The dampening material rotates dynamically with the gantry, maintaining continuous contact and damping effectiveness throughout the rotation cycle while reducing static friction and energy requirements compared to a fixed material configuration
Solution Approach 2:
The rotatable dampening material acts as an intermediary between the gantry and the roller truck frame, absorbing and dissipating vibration energies while allowing smooth rotational motion through its ability to rotate with the gantry
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 solution significantly reduces vibration-induced distortions in CT scanner images by converting mechanical energy into heat, thereby improving image quality and operational stability across a range of rotation speeds.
Implementation Method 1
The roller truck comprises a non-rotating dampening material for dampening vibrations caused by the rotation of the rotating gantry
Implementation Method 2
significantly reduces vibration-induced distortions in CT scanner images by converting mechanical energy into heat
Data Source
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AI summary
One or more techniques and/or apparatuses described herein provide a roller truck comprising non- rotating dampening material that is configured to dampen vibrations and mitigate the transference of vibrations from a rotating gantry 204 to a support frame 210 and vice-versa during rotation of the rotating gantry 204 relative to the support frame 210. It will be appreciated that two different types of roller trucks, base roller trucks 216 and z-axis roller trucks 206, are described herein, and the non -rotating dampening material may be inserted into one or both types of roller trucks. While the instant disclosure finds particular application in the context of computed tomography apparatus, the instant disclosure is not intended to be limited to such applications.