Energy absorption structure optimization method taking expected force response process as target
An energy-absorbing structure and optimization method technology, applied in the field of traffic safety, can solve problems such as unreasonableness, uncertainty of optimization results, influence of optimization results, etc.
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Embodiment 1
[0085]This embodiment is a method of optimizing the ability to measure the desired force response process, and the specific process is:
[0086]Step 1, establish the original finite element model of the impact of thin-walled tube:
[0087]The original finite element model of the impact is established based on the structural characteristics of the impact thin-walled tube and the rigid impact plate. Such asfigure 1 As shown, the structural feature of the impact thin-walled tube and the rigid impact plate is divided into two parts, and a portion is a thin-walled tube having a square cross section, the thin wall tube is 100 mm, and the length is 1000 mm, the wall thickness is 3.0. mm; another part is a square rigid impact board with a side length of 200 mm. The rigid impact plate is located at one end of the thin wall tube and causes the center line of the thin-walled tube to coincide with the geometric center of the rigid impingement plate; the end surface of the thin wall tube and the surfa...
Embodiment 2
[0139]This embodiment is a method of optimizing the ability to measure the desired force response process, and the specific process is:
[0140]Step 1, establish the original finite element model of the impact of thin-walled tube:
[0141]The original finite element model of the impact is established based on the structural characteristics of the impact thin-walled tube and the rigid impact plate. Such asFigure 8 withFigure 9 As shown, the structural feature of the impact thin-walled tube and the rigid impact plate is divided into two parts, and a portion is a thin-walled tube having a square cross section, the thin wall tube is 100 mm, and the length is 1000 mm, the wall thickness is 3.0. MM; another part is a rectangular rigid impact plate at one end of the thin wall tube, which is 880 mm long and 400 mm wide.
[0142]The thin-walled tube is located at one end of the rigid impingement plate and intersects the geometric center line of the thin-walled cross section to the center line in the ...
Embodiment 3
[0190]This embodiment is a method of optimizing the ability to measure the desired force response process, and the specific process is:
[0191]Step 1, establish the original finite element model of the impact of thin-walled tube:
[0192]The original finite element model of the impact is established based on the structural characteristics of the impact thin-walled tube and the rigid impact plate. Such asFigure 8 withFigure 9 As shown, the structural feature of the impact thin-walled tube and the rigid impact plate is divided into two parts, and a portion is a thin-walled tube having a square cross section, the thin wall tube is 100 mm, and the length is 1000 mm, the wall thickness is 3.0. MM; another part is a rectangular rigid impact plate at one end of the thin wall tube, which is 880 mm long and 400 mm wide.
[0193]The thin-walled tube is located at one end of the rigid impingement plate and intersects the geometric center line of the thin-walled cross section to the center line in the ...
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