Metamodels Resulting from Two Different Geometry Morphing Approaches Are Suitable to Direct the Modification of Structure-Born Noise Transfer in the Digital Design Phase

Round 1

Reviewer 1 Report

The paper is technically sound. The coverage of the topic is sufficiently comprensive and balanced. The technical depth of the paper is appropriate for the generally knowledgeable in dividual working in the field.

1. In the abstract the authors should tell the news made in this paper. What is presented in literature?

2. I think a block diagram would be needed to present the steps that the authors will make in this paper.

3. The conclusion is clear, the reference are significant and sufficient. English language and style are fine/minor spell check required.

The paper is suitable for publication in ASI after minor revision.

Author Response

Dear Reviewer,

Thank you very much for your positive feedback, which helped to improve the quality of our paper. We performed the following changes, following your comments and suggestions:

1. We reworked the abstract to make it more clear what is done in literature and what is the target of our paper
2. We added a block diagram (figure 1) and discuss it at the end of the introduction section, showing the steps we make in the paper
3. Thank you again for the positive feedback. We performed additional proofreads, resulting in the correction of multiple mistakes

Kind regards

Timo von Wysocki

Reviewer 2 Report

1. This is a very high-quality paper demonstrating how the FEA morphing and DOE can work together for NVH design. It will be better (not required) to have experimental validation for the original case and the optimal case.
2. In Figure 4, it is not clear on which point is performed displacement. It’s difficult to identify what is the different between (a) and (d). Please improve the figure clarity.
3. In Section 4.1, it’s better to include a figure illustrating the location of the hard point for the track rod connection and the direction along the track rod (x2) and wheel hub in vertical direction (x3).
4. Should the caption of Figure 6 be “Transfer function from wheel hub in x3-direction to hard point track rod in x2-direction” instead of “Transfer function from hard point track rod in x2-direction to wheel hub in x3-direction”? The same thing for Figure 7.

Author Response

Dear Reviewer,

Thank you very much for your valuable feedback. We are glad you rate our paper as "high-quality". Following your comments and suggestions, we performed the following measures:

1. We fully agree with you, that an experimental validation would further substantiate our findings and will consider this for future work.
2. We added an outline to figure 4 (now figure 5) that indicates the undeformed geometry. Your suggestion greatly improves the clearness of the figure.
3. We added figure 7 illustrating the used knuckle, including hard point locations and axis directions. We hope, this improves understanding the test scenario.
4. The captions for figure 6 (now figure 8) and figure 7 (now figure 9) were changed in order to match the formulation in the text. The caption was correct, but misleading in combination with the description in the text.

Kind regards

Timo von Wysocki