Attachment Bulkhead for Vehicle Chassis Connection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current attachment methods for connecting chassis structures to body structures in vehicles lack a lightweight and durable solution, particularly when using hollow beams, which can lead to inefficiencies in structural integrity and weight distribution.
Innovation Solution
The proposed attachment system utilizes a tube nut with internal threads and bulkheads with arc welds to securely connect the chassis to a hollow beam, ensuring a robust and lightweight linkage through a bolt that engages the internal thread of the tube nut, allowing for effective distribution of forces across the beam's walls.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional attachment methods are used to connect chassis to body structure, then structural integrity can be maintained, but weight distribution becomes inefficient and the connection lacks durability
Solution Approach 1:
The attachment is divided into separate functional components: bulkheads for structural support, tube nuts for threaded connection, and bolts for mechanical fastening. This segmentation allows each component to be optimized for its specific function while achieving overall superior performance in both durability and weight efficiency.
Solution Approach 2:
The attachment system combines different materials with complementary properties: metallic bulkheads for structural integrity, threaded tube nuts for secure fastening, and bolts for mechanical connection. This composite approach enables the connection to achieve both high reliability and efficient weight distribution.
2Strength
If a robust connection system is implemented to ensure durability, then structural integrity improves, but the system becomes more complex
Solution Approach 1:
The attachment system is segmented into distinct, well-defined components (bulkheads, tube nuts, bolts) with clear functional assignments. This segmentation simplifies the overall design by allowing each component to be independently manufactured and assembled, reducing complexity while maintaining strength.
Solution Approach 2:
The tube nut acts as an intermediary component between the bulkheads and bolts, providing a standardized threaded interface that simplifies the connection process. This intermediary element reduces design complexity by serving as a universal coupling mechanism.
3Weight of moving object
If lightweight materials are used to reduce weight, then weight distribution efficiency improves, but connection durability may be compromised
Solution Approach 1:
The attachment system employs composite construction combining lightweight bulkhead structures with durable threaded connections. The bulkheads can be fabricated from lightweight alloys while the tube nuts and bolts provide robust mechanical fastening, achieving both weight efficiency and connection durability.
Solution Approach 2:
By segmenting the attachment into separate components, the design allows optimization of each part for its specific function: bulkheads for lightweight structural support and tube nuts/bolts for durable mechanical connection. This segmentation enables the overall system to achieve both lightweight construction and high reliability.
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 provides a lightweight and durable connection between the chassis and body structures, enhancing structural integrity and weight distribution while accommodating various vehicle types and applications.
Implementation Method 1
The first bulkhead is attached to the tube nut via a first arc weld. The second bulkhead is attached to the tube nut via a second arc weld.
Data Source
AI summary
An attachment for connecting a chassis structure to a hollow beam of a body structure includes a tube nut, a bulkhead, and a bolt. The bulkhead has a cavity surface configured to conform to a cylindrical outer surface of the tube nut. The bulkhead is disposed within the hollow beam and is attached to at least two walls of the hollow beam and to the tube nut. A first portion of the cylindrical outer surface of the tube nut is disposed in close proximity to the cavity surface of the bulkhead. A bottom surface of the tube nut contacts an inner surface of a bottom wall of the hollow beam. The bolt extends from the chassis structure, through a hole formed in the bottom wall of the hollow beam, and into the tube nut to connect the chassis structure to the body structure. The attachment may include a second bulkhead.