PDF | The main objective of the presented study was to compare the effectiveness of two standard test procedures for evaluating bus roof. he main objective of the presented study was to compare the effectiveness of two standard test procedures for evaluating bus roof integrity: the dynamic rollover. EUROPEAN TEST METHODS FOR SUPERSTRUCTURES. OF BUSES AND COACHES. RELATED TO. ECE R66 (THE APPLIED HUNGARIAN CALCULATION.
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The connecting structures between the bays shall represent the manufacturer’s description of the superstructure see Annex 4, Paragraph 3. FRPRP and eece are included in the model which is an important nt component for structural integrity. The active load shall be applied in the transverse plane containing the centre of gravity of the superstructure vehicle which is perpendicular to the vertical longitudinal centre plane VLCP of the vehicle.
InterRegs: Regulation No. | ECE – United Nations
The residual space of the whole vehicle shall be well represented in the body sections, including any peculiar combinations arising from the vehicles bodywork configuration; 3. The axles were modeled mo using rigid truss elements and the mass and inertia tia are imposed using the same method.
They are consolidated, published in English, and updated on a regular basis. If applicable, name and address of the manufacturer’s representative: Each rigid section of an articulated vehicle may be tested separately or in combination as described in Annex 5, Paragraph 2.
The longitudinal l and transverse t coordinates of centre of gravity shall be determined on a common horizontal ground see Figure A3.
Crash Analysis of an amphibious bus according to the ECE R66 regulations – Article TechNet Alliance
Manufacturer’s name and address: Skip to main content. The individual load-cell readings shall be noted simultaneously and shall be used to check the total vehicle ecr and centre of gravity position.
All the deviations between the fully finished vehicle type in running order and the tested vehicle are listed. The vehicle shall be tilted without rocking and without dynamic effects until it reaches unstable equilibrium and commences its roll-over.
The simulation program shall produce a stable solution, in which the result is independent of the incremental time step. Testing of Articulated Vehicles In the case of an articulated vehicle, each rigid section of the vehicle shall comply with the general requirement specified in Paragraph 5.
If the residual space is infringed during the roll-over simulation, the approval shall be refused. For the calculation, the complete superstructure shall be mathematically modelled as a load-bearing and deformable structure, taking account of the following: There is a clear statement of the position of centre of gravity in the tested vehicle which may be based ecw measurements carried out on the test vehicle when it is ready for test, or a combination of measurement carried out on the fully finished vehicle type and calculation based on the mass substitutions.
Crash Analysis of an amphibious bus according to the ECE R66 regulations
Advanced Materials Research Volumes Requirements The superstructure of the vehicle shall have the sufficient strength to ensure that the residual space during and after the roll-over test on complete vehicle is unharmed. The whole roof structure shall be well represented in the body sections if there are local specialities, like changing height, air condition installation, gas tanks, luggage carrier, etc.
For design of truck cabin, the survival space must be guaranteed for the safety for driver and front seat passenger in event of crash, which is the ecce requirement described in ECE-R29 regulation. Frontiers of Advanced Materials and Engineering Technology.
The Study of Bus Superstructure Strength Based on ECE R66
It shall be constructed so that it does not suffer any deformation which could change the direction of the roll-over of the vehicle. G of the bus and testing of critical bus body joints ints and subsequent approval. By measuring the vehicle in total effective mass condition, or 1. The connecting elements between these bays need not be identical with the real body work structure but shall be structurally equivalent.
The vehicle centre of gravity position determination was studied and calculated. The position of the centre of gravity, the total value of vehicle mass unladen kerb mass, or total effective vehicle mass where restraints are fitted and the distribution and location of masses, as declared by the manufacturer.
Plots or data which show in an appropriate way that the requirements specified in Paragraphs 5. Uniform Provisions Concerning the Approval of: Any structural parts, which are originally in the residual space e.
The explicit finite element program Ls-Dyna was used ecw verify the roof strength and rear wall strength.
The rollover scenario of an amphibious bus according to the ECE. The vehicle to be tested need not be in a fully finished, “ready for operation” condition. The axle is rigid and mass is added at appropriate locations ns. The T figure shows that energy distribution did rememain constant, indicating that analysis results were accurate te.
Drawings and detailed description of the superstructure of the vehicle type or group of vehicle types according to Annex 4.