Amorphous Metal Gear Damping for Parking Lock Load Peaks
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Solution Overview
Problem
Gear assemblies in motor vehicles experience unwanted load peaks, leading to excessive mechanical stress on components, particularly during activation of parking lock mechanisms and starting forces, necessitating oversized and costly arrangements.
Innovation Solution
A gear assembly design incorporating a damping element made from amorphous metal, positioned between the gear and engagement components or shaft, which reduces mechanical loads and allows for a compact, cost-effective configuration by utilizing amorphous metal's high strength and flexibility, enabling reversible or irreversible connections and integral designs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional gear assembly design is used without damping elements, then the structure is simple and costs are low, but load peaks cause excessive mechanical stress and reduced service life
Solution Approach 1:
A damping element is introduced as an intermediary component between the gear component and engagement component/shaft. This damping element absorbs and dissipates load peaks and torque-transmitting stress, protecting the gear components from excessive mechanical stress while maintaining a relatively simple overall structure.
Solution Approach 2:
The damping element is produced at least in part from amorphous metal, which combines high strength properties with excellent damping characteristics. This composite material approach allows the damping element to effectively mitigate load peaks while maintaining structural integrity and avoiding the need for oversized components.
2Strength
If oversized components are used to withstand load peaks, then mechanical strength is sufficient, but installation space increases and costs rise
Solution Approach 1:
The damping element acts as a protective intermediary that absorbs extreme loads, allowing the main gear components to be sized for normal operating conditions rather than peak loads. This results in more compact components and reduced installation space while maintaining sufficient strength during operation.
Solution Approach 2:
Amorphous metal damping elements provide high strength-to-volume ratio, delivering excellent damping performance and mechanical strength in a compact form factor. This enables the gear assembly to withstand load peaks without requiring oversized components, thereby reducing installation space.
3Ease of manufacture
If damping elements are integrated into gear components, then manufacturing efficiency increases, but design flexibility decreases
Solution Approach 1:
The damping element is designed as a separate, modular component that can be independently manufactured and then integrated into the gear assembly. This segmentation allows for specialized manufacturing processes for the damping element while maintaining flexibility in its design and placement, enabling both high manufacturing efficiency and design adaptability.
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 significantly extends the service life of gear components by mitigating load peaks and torque-transmitting stress, allowing for a more compact and optimized installation space without the need for oversized components, while maintaining high strength and damping properties.
Implementation Method 1
at least one damping element, wherein the damping element is arranged in an operative manner between the gear component and the engagement component and/or between the gear component and the shaft
Implementation Method 2
the damping element is produced at least in part from amorphous metal
Data Source
AI summary
A gear assembly for a motor vehicle comprising at least one shaft, at least one gear component arranged on the shaft, at least one engagement component which is engaged with the gear component or can be brought into engagement with the gear component, and at least one damping element. The damping element is arranged in an operative manner between the gear component and the engagement component and/or between the gear component and the shaft, and wherein the damping element is produced at least in part from amorphous metal.