By successfully accomplishing this objective, we can ascertain whether our design aligns with European standards regarding wheel arch placement. This assessment ensures adherence to safety requirements while maintaining an aesthetically pleasing appearance according to industry guidelines.
A fender, also known as a wing in some regions, is an integral part of a car's body that covers the wheel well and is typically located above each wheel. Its primary function is to provide protection for both the engine components and pedestrians. Here's a detailed explanation of the significance of fenders in safeguarding these aspects:
2. Safety for Pedestrians: Fenders play a crucial role in pedestrian safety by reducing injuries in case of accidents involving vehicles. The design of modern vehicle fenders incorporates specific features aimed at minimizing harm to pedestrians during collisions.
- Energy Absorption: Fenders are designed to absorb impact energy during an accident through deformation or crumple zones strategically integrated into their structure. This reduces the force exerted on pedestrians upon contact with the vehicle.
- Smooth Surfaces: Fenders often have smooth contours and rounded edges to minimize sharp protrusions that could cause severe injuries upon collision.
- Height Placement: Properly positioned fenders help create space between vulnerable areas like hoods or windshields and pedestrians during impacts.
3. Significance of Wheel Arch: The wheel arch refers specifically to the curved opening surrounding each wheel within the fender assembly.
- Aesthetic Appeal: The shape and styling of wheel arches significantly contribute to a car's overall exterior aesthetics. They can enhance visual appeal by adding dynamic lines or curves that complement other design elements.
- Tire Clearance: Wheel arches accommodate tire movement while allowing sufficient clearance between tires and other components, such as the fender's inner liner or suspension system. This ensures smooth tire rotation and prevents contact between the tire and surrounding parts during normal driving conditions or when encountering bumps.
- Protection from Road Debris: The wheel arches act as a barrier against road debris, mud, gravel, and other particles thrown up by rotating tires. They help minimize the accumulation of these materials on the vehicle's body and undercarriage while safeguarding nearby components from potential damage.
Relation between Fender and Wheel Arch: The fender encompasses the entire wheel well area, including the wheel arch within it. The wheel arch is an integral part of the fender structure that specifically surrounds each wheel assembly. It provides necessary clearance for tire movement while being aesthetically integrated into the overall design of the vehicle's exterior appearance.
Together, these two elements work in harmony to protect engine components from external hazards like debris or weather conditions while also ensuring pedestrian safety during collisions. Additionally, they contribute to both functionality and aesthetics by accommodating tire movement, enhancing visual appeal through stylish designs, providing clearance for various mechanical parts associated with wheels' operation.
WHEEL & FENDER PART FILE FOR EUROPEAN REGULATIONS ANALYSIS: PASS OR FAIL EVALUATION
EUROPEAN REGULATION'S REPRESENTATION:
In order to maintain proper alignment, there should be a Minimum Distance of 10mm denoted by 'L' between the Outermost Surface of the Wheel and the Inner Surface of the Wheel Arch. This measurement ensures sufficient clearance and avoids any interference or contact between these two components.
To ensure compliance with the desired alignment, it is crucial to maintain a 10mm clearance between the largest circumference of the wheel and the curve of the wheel arch that is nearest to the wheel. This ensures adequate space between these two elements, preventing any potential contact or interference while allowing for smooth movement and operation.
In the provided image, specific lines denoted as SA, SB, SC, SD, and SE are used to measure the required values and assess compliance with the appropriate standards. These lines serve as reference points for evaluating and verifying whether the specified measurements align with the necessary criteria.
ANALYSIS STEPS FOR EVALUATING THE COMPATIBILITY OF THE PROVIDED FENDER AND WHEEL DESIGN:
1. To initiate the analysis, we will utilize the "Inferred" option to create a Datum Plane precisely on the outermost surface of the wheel. This strategically positioned plane will serve as a reference point for further evaluations and measurements, ensuring accurate assessment of key parameters related to the given fender and wheel design.
2. Subsequently, we will generate a sketch on the aforementioned plane by meticulously following all the essential steps outlined in the image provided by European Regulations. This comprehensive approach ensures adherence to the specified guidelines and facilitates accurate representation of the required dimensions and features within the design.
3. To facilitate the measurement of distances and verify compliance with the required conditions, we will employ the "Project Curve" command. This command enables us to project the essential points onto the Wheel Arch of the Fender, as depicted in the image provided. By doing so, we can accurately assess and measure the distance between each projected point to determine if they meet the specified requirements.
4. Calculate the values of 'L(clearance value)' at aforementioned points as shown below:
A) The measurement of clearance between line SA and the Wheel Arch is as follows:
Observed Clearance at SA= 9.9490mm
B) The measurement of clearance between line SB and the Wheel Arch is as follows:
Observed Clearance at SB= 10.000mm
C) The measurement of clearance between line SC and the Wheel Arch is as follows:
Observed Clearance at SB= -0.1139mm
The above value is in the negative direction.
D) The measurement of clearance between line SD and the Wheel Arch is as follows:
Observed Clearance at SB= -5.7826mm
The above value is also in the negative direction.
E) The measurement of clearance between line SE and the Wheel Arch is as follows:
Observed Clearance at SB= -12.7700mm
The above value is also in the negative direction.
5. To determine the clearance value 'a' that satisfies the wheel guard requirement, we will measure and analyze the necessary distance between relevant components. This measurement is crucial for ensuring proper fitment and compliance with specified standards related to wheel guarding in automotive design.
We'll determine the required clearance values from the 30 and 50 degree's lines as shown below:
1. CLEARANCE FROM THE 30 DEGREE LINE:
2. CLEARANCE FROM THE 50 DEGREE LINE:
FINAL OBSERVATIONS & RESULTS:
SECTION |
L>10mm |
RESULTS |
a>10mm |
RESULTS |
SA-SA |
9.9490mm |
FAIL |
------- |
------- |
SB-SB |
10.000mm |
PASS |
43.6263mm |
PASS |
SC-SC |
-0.1139mm |
FAIL |
38.3597mm |
PASS |
SD-SD |
-5.7826mm |
FAIL |
------- |
------- |
SE-SE |
-12.7700mm |
FAIL |
------- |
------- |
CONCLUSION:
The assessment of the wheel arch alignment on the fender, based on European standards, has been conducted with meticulous attention to detail. The objective was to verify if there is a 10mm offset between the outermost surface of the fender and the wheel, ensuring that the wheel remains safely contained within its boundaries.
Based on measurements taken at five specified points using lines SA, SB, SC, SD & SE, it was observed that only line SB met the required test by providing a clearance value of 10.000mm. Lines SA fell slightly short with an offset value of 9.9490mm while lines SC (-0.1139mm), SD (-5.7826mm), and SE (-12.7700mm) indicated negative values due to protrusion of the wheel beyond the boundary defined by the wheel arch.
Furthermore, in order to determine compliance with wheel guard requirements, clearance values 'a' were calculated for two specific angles: 30 degrees and 50 degrees from reference lines as per relevant regulations.
- Clearance value 'a' measured from a 30-degree angle resulted in a distance of 43.6263mm.
- Clearance value 'a' measured from a 50-degree angle yielded a distance of 38.3597mm.
Both these clearance values exceeded the minimum requirement of 10 mm specified for proper fitment and adherence to prescribed standards related to wheel guarding in automotive design.
Importance: Accurate measurement and analysis play a crucial role in ensuring optimal fitment between fenders and wheels while meeting safety standards set forth by regulatory bodies such as those outlined in European Regulations.
By carefully assessing each point's compatibility against established criteria through precise measurements utilizing designated lines (SA, SB, SC, SD & SE), we can identify areas where adjustments may be necessary for improved alignment or enhanced compliance.
Ultimately,this analysis helps guarantee adequate clearances within specified tolerances, ensuring proper wheel arch alignment and compliance with safety regulations.