Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Composite material plate and metal plate lap joint energy absorption device

A composite material board and energy-absorbing device technology, applied in springs, shock absorbers, spring/shock absorbers, etc., can solve problems such as insufficient use of structural materials, low energy absorption efficiency, and heavy weight of energy-absorbing structures

Pending Publication Date: 2022-01-21
NORTHWESTERN POLYTECHNICAL UNIV
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the design of the mechanical connection is often too conservative. During the impact process, the joint does not damage or the damage displacement is extremely small, resulting in insufficient use of structural materials, heavy energy-absorbing structures, and low energy-absorbing efficiency.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Composite material plate and metal plate lap joint energy absorption device
  • Composite material plate and metal plate lap joint energy absorption device
  • Composite material plate and metal plate lap joint energy absorption device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] refer to Figure 1-3 , the present invention provides a composite material plate and a metal plate overlap energy-absorbing device, including a first plate 1 and a second plate 2, the first plate 1 is located above the second plate 2, the first plate 1 and the second plate 2 are connected by fastening components;

[0034] The first plate 1 is provided with a stepped groove 5, the fastening component is located in the stepped groove 5, the bottom of the stepped groove 5 is used to buffer the movement of the fastening component, and the fastening component runs through the second plate 2 and In the through hole at the bottom of the stepped groove 5, there is a gap between the fastening component and the inner side wall of the stepped groove 5 and the through hole; a gasket 4 is arranged between the head of the fastening component and the stepped groove 5 .

[0035] When the aircraft lands normally, the energy-absorbing device is used as a load-bearing structure, and the...

Embodiment 2

[0049] refer to Figure 4-7 The difference between the energy absorbing device of this embodiment and the first embodiment is only that the second plate 2 is provided with a sliding long groove 9, the direction of the sliding long groove 9 is perpendicular to the direction of the stepped groove 5, and the bolt 3 penetrates the stepped groove. The intersection of the groove 5 and the sliding slot 9, the energy-absorbing boxes are arranged on both sides of the first plate 1, the energy-absorbing boxes are fixedly connected between the first plate 1 and the second plate 2, and the energy-absorbing boxes have a square structure.

[0050] The solution is further optimized. The energy-absorbing box includes a fixed wall 10 of the energy-absorbing box that is fixedly connected to the second plate 2. The inner wall of the fixed wall 10 of the energy-absorbing box is fixedly connected with two crushing blocks 11, and between the two crushing blocks 11 are arranged There is a gap, a cur...

Embodiment 3

[0056] refer to Figure 8-11 The difference between the stepped groove 5 of this embodiment and the first embodiment is only that the stepped groove 5 is provided with a second groove 7 and a third groove 17, and the third groove 17 is located in the second groove 7 Below, the distance between the inner long side walls of the third groove 17 is smaller than the major diameter of the bolt 3, the third groove 17 is provided with a bolt hole 18, and the bolt 3 passes through the bolt hole 18 and the second plate 2 and the bolt hole 18. Nut 8 is screwed.

[0057] The working process of this embodiment is as follows:

[0058] When a collision occurs, the second plate 2 drives the bolts 3 to move relative to the first plate 1, and the bolts 3 move in the third grooves 17. Since the distance between the third grooves 17 is smaller than the major diameter of the bolts 3, even if The moving direction of the bolt 3 is the same as that of the stepped groove 5, and the bolt 3 can be mor...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a composite material plate and metal plate lap joint energy absorption device which comprises a first plate and a second plate. The first plate is located above the second plate, and the first plate and the second plate are connected through fastening assemblies; stepped grooves are formed in the first plate, the fastening assemblies are located in the stepped grooves, the bottoms of the stepped grooves are used for buffering movement of the fastening assemblies, and the fastening assemblies penetrate through the second plate and through holes in the bottoms of the stepped grooves; gaps are formed between the fastening assemblies and the stepped grooves and between the fastening assemblies and the inner side walls of the through holes; and gaskets are arranged between the heads of the fastening assemblies and the stepped grooves. By means of the composite material plate and metal plate lap joint energy absorption device, materials can be fully used, and the energy absorption structure is light in weight and high in energy absorption efficiency.

Description

technical field [0001] The invention relates to the field of impact energy-absorbing structures, in particular to an energy-absorbing device for overlapping a composite material plate and a metal plate. Background technique [0002] Vehicle collision, aircraft crash, helicopter forced landing, outer space probe landing and other processes, due to the heavy weight and fast impact speed of the equipment, will be affected by the impact load. In order to ensure the safety of the members, the safety of the structure and the normal operation of the electrical equipment, efficient The plastic deformation and fracture damage of the energy-absorbing structure / material dissipate the impact kinetic energy, while delaying the impact process, reducing the peak impact load, and improving the impact resistance of the structure. [0003] Fiber-reinforced composite laminates have the characteristics of high specific modulus and high specific strength, and are widely used in the fields of aut...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F16F15/04
CPCF16F15/04F16F2224/02F16F2224/005
Inventor 索涛李易航关天豪胡威豆清波
Owner NORTHWESTERN POLYTECHNICAL UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com