A Local Resonance Superstructure Vibration Isolator
A local resonance and superstructure technology, applied in the direction of shock absorbers, shock absorbers, springs/shock absorbers, etc., can solve the problem that low-frequency and medium-high frequency resonance cannot be suppressed at the same time, and achieve enhanced damping and extended bandgap, The effect of high-efficiency vibration isolation
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0035] As shown in Figure 1(a) and Figure 1(b), an embodiment of the present invention provides a local resonance superstructure vibration isolator, including a bottom plate 4, an outer shell 3, a vibration isolation inner core 1 and a bearing platform 5; wherein The bottom plate 4 is used to provide installation and bearing support; the shell 3 is cylindrical, one end is open, and the other end has an end face; the open end is installed on the bottom plate 4; the end face has an opening; A plurality of elastic units 100 are arranged axially to form a periodic structure, and are located in the space surrounded by the bottom plate 4 and the housing 3; two adjacent elastic units 100 are fixedly connected, and each local resonance unit 200 includes a The spring mass system is fixed in the inner cavity of an elastic unit 100 and can vibrate in the inner cavity according to a predetermined frequency; the bearing platform 5 is stepped, and the large diameter section is installed on t...
Embodiment 1
[0060] Embodiment 1 is a linear / nonlinear superstructure vibration isolator with a single-frequency local resonance structure; Embodiment 2 is a superstructure vibration isolator with a dual-frequency coupled local resonance structure. The embodiment adopts the finite element numerical calculation method to verify their vibration isolation performance.
[0061] Figure 6 A two-dimensional plan view (section view, section through the central axis of the vibration isolator) of the vibration isolator in the preferred embodiment 2 is presented, and the main external design dimensions of the specific embodiment are marked in the figure. The structure of embodiment 1 and Figure 6 resemblance.
[0062] The material parameter of specific embodiment is as shown in the following table:
[0063] structure name material type Elastic Modulus Poisson's ratio Density kg / m 3
Rigid Laminates(6) Stainless steel 200GPa 0.3 7890 Heavy Blocks (9, 11, 14) ...
Embodiment 2
[0069] Example 2: Superstructure Vibration Isolator Containing Dual Frequency Coupling Local Resonance Structure
[0070] Embodiment 2 compares and analyzes two groups of different dual-frequency coupling local resonant structures, and their local resonant frequencies are different. The low-frequency local resonance modes of the two oscillators calculated by the finite element method are as follows: Figure 10 As shown in (a) and 10(b), the first mode corresponds to the resonance of the third weight 14 , and the second mode corresponds to the resonance of the second weight 11 .
[0071] In the first group: f 21 =53Hz, f 22 = 180 Hz; theoretically estimated local resonant bandgap frequencies range from 53-68 Hz and 180-236 Hz.
[0072] In the second group: f 21 =137Hz, f 22 = 373Hz; theoretically estimated local resonance bandgap frequencies range from 137-176Hz and 373-490Hz.
[0073] Under the action of 1 ton load, the vibration transmission rate comparison of the two g...
PUM

Abstract
Description
Claims
Application Information

- R&D
- Intellectual Property
- Life Sciences
- Materials
- Tech Scout
- Unparalleled Data Quality
- Higher Quality Content
- 60% Fewer Hallucinations
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com