Improving Damping of Automotive Suspension (Record no. 617516)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02243nam a22001577a 4500 |
| 082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER | |
| Classification number | 670 |
| 100 ## - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Osama, Muhammad |
| 245 ## - TITLE STATEMENT | |
| Title | Improving Damping of Automotive Suspension |
| 264 ## - PRODUCTION, PUBLICATION, DISTRIBUTION, MANUFACTURE, AND COPYRIGHT NOTICE | |
| Place of production, publication, distribution, manufacture | Islamabad : |
| Name of producer, publisher, distributor, manufacturer | SMME-NUST , |
| Date of production, publication, distribution, manufacture, or copyright notice | 2026. |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 76p. ; |
| Other physical details | Soft Copy |
| Dimensions | 30cm. |
| 500 ## - GENERAL NOTE | |
| General note | Most heavy-duty automotive suspensions use high-strength helical steel <br/>springs, which have linear elastic behavior but very little intrinsic material <br/>damping. So, auxiliary hydraulic dampers are the only things that keep the <br/>vehicle stable and comfortable to ride in. In very rough off-road conditions, <br/>these fluid-based dampers are very likely to break down or lose their <br/>effectiveness due to heat, which makes armored SUVs and other strategic <br/>logistics and defense platforms very vulnerable. This study presents a new <br/>polymer-metal composite (PMC) spring topology that is meant to provide <br/>built-in passive damping and fail-safe mechanical redundancy. To do this, a <br/>high-strength SAE 9254 steel coil spring was completely covered in a <br/>thermoset neoprene (chloroprene rubber) shell. A custom compression <br/>molding workflow was created to make sure that the adhesion between the <br/>two surfaces was strong and that there was no delamination. We used a servo<br/>hydraulic universal testing machine (UTM) to test dynamic performance <br/>under cyclic loading conditions. We then added the resulting coefficients to a <br/>quarter car model on Simulink as well as 7-degree-of-freedom (7-dof) full-car <br/>vehicle dynamics model on MATLAB. Tests in the real-world show that <br/>composite architecture causes strong non-linear viscoelasticity. Transient <br/>oscillations die down quickly, according to time-domain analysis. This means <br/>that the suspension settles down much faster after a shock event. These results <br/>show that composite springs wrapped in neoprene are a theoretically long<br/>lasting, fail-safe building solution that improves dynamic stability and <br/>completely protects the structural steel core from corrosion-related fatigue. |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | MS Design and Manufacturing Engineering |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Supervisor: Dr. Najm Ul Qadir |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href=" http://10.250.8.41:8080/xmlui/handle/123456789/57652"> http://10.250.8.41:8080/xmlui/handle/123456789/57652</a> |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | |
| Koha item type | Thesis |
| Withdrawn status | Permanent Location | Current Location | Shelving location | Date acquired | Full call number | Barcode | Koha item type |
|---|---|---|---|---|---|---|---|
| School of Mechanical & Manufacturing Engineering (SMME) | School of Mechanical & Manufacturing Engineering (SMME) | E-Books | 05/20/2026 | 670 | SMME-TH-1216 | Thesis |