Elliptical Leaf Spring Shock and Vibration Mounts with Enhanced Damping and Energy Dissipation Capabilities Using Lead Spring
We present an enhancement to the existing elliptical leaf spring (ELS) for improved damping and energy dissipation capabilities. The ELS consists of a high tensile stainless steel elliptical leaf spring with polymer or rubber compound. This device is conceived as a shock and vibration isolator for e...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2015-01-01
|
| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2015/482063 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850219972941316096 |
|---|---|
| author | Moussa Leblouba Salah Altoubat Muhammad Ekhlasur Rahman Balaji Palani Selvaraj |
| author_facet | Moussa Leblouba Salah Altoubat Muhammad Ekhlasur Rahman Balaji Palani Selvaraj |
| author_sort | Moussa Leblouba |
| collection | DOAJ |
| description | We present an enhancement to the existing elliptical leaf spring (ELS) for improved damping and energy dissipation capabilities. The ELS consists of a high tensile stainless steel elliptical leaf spring with polymer or rubber compound. This device is conceived as a shock and vibration isolator for equipment and lightweight structures. The enhancement to the ELS consists of a lead spring plugged vertically between the leaves (referred to as lead-rubber elliptical leaf spring (LRELS)). The lead is shown to produce hysteretic damping under plastic deformations. The LRELS isolator is shown to exhibit nonlinear hysteretic behavior. In both horizontal directions, the LRELS showed symmetrical rate independent behavior but undergoes stiffening behavior under large displacements. However, in the vertical direction, the LRELS behavior is asymmetric, exhibiting softening behavior in compression and stiffening behavior in tension. Mathematical models based on the Bouc-Wen model, describing the hysteretic behavior of the proposed isolator, are developed and numerically calibrated using a series of finite element analyses. The LRELS is found to be effective in the in-plane and vertical directions. The improved damping and energy dissipation of the LRELS is provided from the hysteretic damping of the lead spring. |
| format | Article |
| id | doaj-art-768550bf7b354f60ad9dcfccf0cb774d |
| institution | OA Journals |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-768550bf7b354f60ad9dcfccf0cb774d2025-08-20T02:07:13ZengWileyShock and Vibration1070-96221875-92032015-01-01201510.1155/2015/482063482063Elliptical Leaf Spring Shock and Vibration Mounts with Enhanced Damping and Energy Dissipation Capabilities Using Lead SpringMoussa Leblouba0Salah Altoubat1Muhammad Ekhlasur Rahman2Balaji Palani Selvaraj3Department of Civil & Environmental Engineering, College of Engineering, University of Sharjah, P.O. Box 27272, Sharjah, UAEDepartment of Civil & Environmental Engineering, College of Engineering, University of Sharjah, P.O. Box 27272, Sharjah, UAEDepartment of Civil & Construction Engineering, Faculty of Engineering and Science, Curtin University Sarawak, Miri, Sarawak, MalaysiaDepartment of Civil & Construction Engineering, Faculty of Engineering and Science, Curtin University Sarawak, Miri, Sarawak, MalaysiaWe present an enhancement to the existing elliptical leaf spring (ELS) for improved damping and energy dissipation capabilities. The ELS consists of a high tensile stainless steel elliptical leaf spring with polymer or rubber compound. This device is conceived as a shock and vibration isolator for equipment and lightweight structures. The enhancement to the ELS consists of a lead spring plugged vertically between the leaves (referred to as lead-rubber elliptical leaf spring (LRELS)). The lead is shown to produce hysteretic damping under plastic deformations. The LRELS isolator is shown to exhibit nonlinear hysteretic behavior. In both horizontal directions, the LRELS showed symmetrical rate independent behavior but undergoes stiffening behavior under large displacements. However, in the vertical direction, the LRELS behavior is asymmetric, exhibiting softening behavior in compression and stiffening behavior in tension. Mathematical models based on the Bouc-Wen model, describing the hysteretic behavior of the proposed isolator, are developed and numerically calibrated using a series of finite element analyses. The LRELS is found to be effective in the in-plane and vertical directions. The improved damping and energy dissipation of the LRELS is provided from the hysteretic damping of the lead spring.http://dx.doi.org/10.1155/2015/482063 |
| spellingShingle | Moussa Leblouba Salah Altoubat Muhammad Ekhlasur Rahman Balaji Palani Selvaraj Elliptical Leaf Spring Shock and Vibration Mounts with Enhanced Damping and Energy Dissipation Capabilities Using Lead Spring Shock and Vibration |
| title | Elliptical Leaf Spring Shock and Vibration Mounts with Enhanced Damping and Energy Dissipation Capabilities Using Lead Spring |
| title_full | Elliptical Leaf Spring Shock and Vibration Mounts with Enhanced Damping and Energy Dissipation Capabilities Using Lead Spring |
| title_fullStr | Elliptical Leaf Spring Shock and Vibration Mounts with Enhanced Damping and Energy Dissipation Capabilities Using Lead Spring |
| title_full_unstemmed | Elliptical Leaf Spring Shock and Vibration Mounts with Enhanced Damping and Energy Dissipation Capabilities Using Lead Spring |
| title_short | Elliptical Leaf Spring Shock and Vibration Mounts with Enhanced Damping and Energy Dissipation Capabilities Using Lead Spring |
| title_sort | elliptical leaf spring shock and vibration mounts with enhanced damping and energy dissipation capabilities using lead spring |
| url | http://dx.doi.org/10.1155/2015/482063 |
| work_keys_str_mv | AT moussaleblouba ellipticalleafspringshockandvibrationmountswithenhanceddampingandenergydissipationcapabilitiesusingleadspring AT salahaltoubat ellipticalleafspringshockandvibrationmountswithenhanceddampingandenergydissipationcapabilitiesusingleadspring AT muhammadekhlasurrahman ellipticalleafspringshockandvibrationmountswithenhanceddampingandenergydissipationcapabilitiesusingleadspring AT balajipalaniselvaraj ellipticalleafspringshockandvibrationmountswithenhanceddampingandenergydissipationcapabilitiesusingleadspring |